OUR STORY
Larsen Building Products are the leading manufacturer of professional building products that deliver exceptional performance for all corners of the construction industry.
Founded in 1975 in Antrim, Northern Ireland, the company has grown from its humble beginnings of supplying admixtures to concrete plants into a powerhouse offering a diverse range of high-quality, high-performance products across multiple sectors throughout the UK and Ireland.
As a family run business, Larsen has steadily expanded its product portfolio, which now includes:
Today, Larsen is renowned throughout the construction industry for providing cutting-edge solutions to meet the diverse needs of the professional. 2025 marks a proud milestone in Larsen’s history when the company celebrates 50 years of excellence within the construction industry. Staying true to its core values of professionalism, performance, trust, expertise, reputation, and innovation; these principles have driven the company’s vision:
To provide customers with exceptional service and support while delivering quality products that meet the demands of the ever-evolving construction industry.
OUR EXPERTISE
Larsen’s dedication to innovation remains at the heart of the company’s operations.
With significant investment in its research and development (R&D) lab at the Belfast headquarters, Larsen continues to pioneer new products, utilising advanced experimental methods and equipment to develop tailor-made solutions that address the unique requirements of end users.
This commitment to R&D ensures that Larsen stays at the forefront of the industry, providing high-quality products that enhance the performance and reliability of construction projects across the UK and Ireland.
All Larsen professional products are manufactured under an ISO9001 quality system, and with the manufacturing plant certified to ISO14001 product quality and environmental responsibilities are of utmost importance to the business.
The 50th anniversary is a testament to the enduring dedication of Larsen’s employees, many of whom have been with the company for 20, 30, or even 40 years. These long service employees have played an integral role in preserving the company’s industry knowledge, expertise, and reputation, ensuring that Larsen continues to thrive as a trusted name in the construction industry for years to come.
OUR SUPPORT
The company operates with a robust presence across the UK and Ireland, with sales divisions strategically located to support a growing customer base. Larsen has built up an enviable distribution network of builders’ merchants and DIY stores, tile shops and specialist independent stockists; ensuring that professional products are accessible to all.
With a highly trained sales support team on board, there’s the reassurance that your order or query is dealt with accurately, efficiently and with a high level of professionalism.
The Larsen technical team is also particularly renowned for providing first class technical know-how and support for customers that require specifications, recommendations, and product solutions.
With distinctive and visually impactul packaging the Larsen range of products and point-of-sale materials ensure that on-shelf brand presence is maximised, leading to greater sales potential. Our team of experienced sales professionals are on-hand to discuss your in-store merchandising requirements.
PROTIM WB7 GREEN
Wood Preservative for New & Existing Timber. Prevents & Eradicates Fungi, Dry Rot & Wood Boring Insects.
• READY TO USE
• SOLVENT BASED
• PREVENTS ROT & INSECT ATTACK
• LONG LASTING PROTECTION
• DEEP PENETRATING
• FOR NEW & EXISTING TIMBER
• Ready-To-Use
• Triple Action
• Kills Woodworm & Larvae
• Stops Re-Infestation
• Prevents Dry & Wet Rot
• 1L per 3.3-10m2
LOW ODOUR WOODWORM KILLER
• Ready-To-Use
• Low Odour
• Kills Wood Destroying Insects
• Prevents Re-Infestation
• Deeply Penetrating
• 1L per 3.3-5 m2
• Ready-To-Use
• Quick Drying
• Prevents Damage to Timber
• Kills Wood Boring Insects and Larvae
• 1L per 5 m2
CREOCOAT
• Dark Brown Oil Based Wood Stain
• Protects Rough & Smooth
External Timber
• Enhances Water Repellency
• Restricts Weather Damage
• Creosote Substitute
• 1L
LARDEC
• Oil Based Wood Stain & Primer
• Ready to Use & Easy to Apply
• Use on All Joinery Components
(Doors, Sheds, Poultry Houses, Garden Furniture etc.)
• 1L per 5-10m2
STANDARD SET FLEX
Specially Formulated, High-Grab, Non-Slip, Polymer Modified, Cement-Based Tile Adhesive
• PERFECT FOR THICK OR THIN BED
• IDEAL FOR PORCELAIN AND NATURAL STONE TILES
• INTERIOR, EXTERIOR, FLOOR AND WALL APPLICATIONS
• SUITABLE FOR LARGE FORMAT PANELS
• FOR MORE DEMANDING AREAS, E.G. SWIMMING POOLS
FAST SET FLEX TILE ADHESIVE
• Ideal for Ceramic, Porcelain, Large Format, Natural Stone & Mosaic Tiles
• Interior & Exterior Use
• Floor & Wall Applications
• Perfect for Heated Screeds
SEMI-FAST SET FLEX TILE ADHESIVE
• Ideal for Large Format & Panel Tiles, Ceramic, Porcelain, Natural Stone & Mosaic
• Interior & Exterior Use
• Floor & Wall Applications
FAST SET TILE ADHESIVE
• Ideal for Ceramic & Porcelain Tiles
• Interior & Exterior Use
• Floor & Wall Applications
• Concrete & Screed Floors Only (No Underfloor Heating)
IMPREGNATING SEALER
• Solvent-Based, Stain Resistant, Surface Protector & Colour
Enhancer
• Advanced Impregnator
• Water Repellent Seal
• Enhanced Colour of Treated Surface
EXTRA STRENGTH REMOVER
• Strong Acidic Cleaner
• Removes Cement Stains
• Ideal for Stubborn Grout Residues
• Perfect for Use on Deeply Textured Tiles
SHOWERPROOF CERAMIC WALL TILE
ADHESIVE
• Ready Mixed Thin Bed Adhesive
• High-Grab, Non-Slip & Mould Resistant
• Fixes Ceramic Wall Tiles in Domestic Showers, Kitchens & Bathrooms
• BS EN 12004 D1T
STONE & GROUT PROTECTOR
• Water-Based Surface Protector Against Oil-Based Staining
• Advanced Stain Resistant Impregnating Sealer
• Invisible Protection
• Suitable for Almost All Porous Surfaces & All Natural Stone
Suitable for Floors, Walls, Ceilings & Counter Tops
THERMAL CONSTRUCTION BOARD
• LIGHTWEIGHT & W
• REINFORCED CEMENT COATING
Multi-Purpose Construction Board Designed for the Application of All Tile Types, Cement Based Screeds and Synthetic Renders CODE DEPTH PACK
• EXCELLENT IMPACT STRENGTH
• SOUND REDUCTION
• FIRE RESISTANCE
J12006 6MM 10
J12010 10MM 10
J12012.5 12.5MM 8
J12020 20MM 6
WATERPROOF TANKING KIT
Versatile Multi-Part System Designed for Ease of Use and Premium Performance. Contains Water-Based, Flexible Tanking Membrane (4L), a roll of Self-Adhesive Butyle Tape (5m) & Acrylic Primer (0.5L).
• Ideal for Wet Rooms, Shower Areas, Sports Facilities & Bathrooms
RAPID TANK 360
Versatile, Fast-Setting Sealing Slurry that Adheres to Mineral Surfaces. Offers Watertight Protection Against Water Pressure. Vapour Permeable, Chloride Impermeable, Frost & Aging Resistant. CO2 Barrier & Bridges Cracks Over 1mm - even in Low Temperatures.
• Internal & External
• Rapid, Crack-Free Setting
TRADE WATERPROOFING KIT
Versatile Multi-Part System Designed for Ease of Use and Premium Performance. Contains Water-Based Flexible Tanking Membrane (4L), a roll of Flexible Joint Sealing Tape (5m) & Acrylic Primer (0.5L).
• Ideal for Wet Rooms, Shower Areas, Sports Facilities & Bathrooms
SCREWS & WASHERS
Larsen Thermal Construction Boards must be Secured to the Floor Boarding with Fixing Washers & Screws with a Countersunk Head.
• Ideal for Securing Thermal Construction Boards
• 50 Per Pack
WATERPROOF ANTI-CRACK MEMBRANE
• Low Profile (less than 1mm height build up), 3-ply Membrane (20m x 1m)
• 2 in 1 Waterproofing & Decoupling
Ideal for Natural Stone, Underfloor Heating, Timber Floors, Wet Rooms, Large Tiles, Heated Floors & Cracked Surfaces
• Low-Profile Membrane
(30 x 1m rolls)
• Manages Lateral Movements in Substrates
• Water-Vapor-Retarding Sheet (30m x 1m)
• Accommodates Lateral Movement & Substrate Stresses
• Requires Less Adhesive (co red to ‘waffle’ decoupling mats)
• Suitable For Commercial & Residential Use
1J10020 20M X 1M 1
• 2 in 1 Anti-Crack & Decoupling System
• Requires Less Adhesive (compared to ‘waffle’ decoupling mats)
• Suitable For Commercial & Residential Use
1J20030 30M X 1M 1
• Suitable for Sealing Under Ceramic Tiles e.g. in Wetrooms & Balconies
X 1M 1
Ideal for Shower Trays, Bathtubs & Counter Tops
SELF ADHESIVE TANKING TAPE TANKING MEMBRANE
• For Domestic & Commercial Waterproofing
• Solvent-Free Flexible Joint
Sealing Tape
• Tanks Tiles in Wet & Shower Rooms
• Designed for Interior Floor
& Wall Use
• Solvent-Free Waterproof
Sealing Compound
• For Professional Tanking Under Tiles
• Ideal for Wet Areas
e.g. shower rooms
• Suitable for Interior Walls
& Floors
• Touch Dry in just 1 Hour
FLEXIBLE SHOWER SEAL TAPE
• Hi-Performance Shower Seal Tape
• Apply Directly to Wall-Facing Edges
• Ensures a Reliable, Watertight Seal
PRIMER GRIP 360
The Ultimate Mechanical Key - This Hybrid Primer with a Gritty Surface Ensures a Superior Bond. Formulated With Advanced Polymers & Special Fine Aggregate.
• IDEAL FOR TILING AND LEVELLING
• RAPID DRYING
• FOR COMMON ABSORBENT & NON-ABSORBENT BACKGROUNDS
• TILE OVER OR LEVEL IN 15-20MINS
• 1KG PER 5-10M2
DPM ONE COAT RAPID
• 2 Part Epoxy Surface Applied Damp Proof Membrane
• Ideal for Fast-Track Applications
• Install Moisture Sensitive Floor Finishes Immediately Onto Damp Concrete & Screed
• Superior 1 Coat Application
• Up to 98%RH in 1 Coat
ACRYLIC PRIMER
• Ready-to-Use, Water-Based Polymer Emulsion
• For Porous Substrates
• Use Neat for Sealing, Diluted for Priming
• Improves Adhesion Prior to Tiling or Screeding
• Coloured to Indicate Application
NP KEYCOAT
• Ready-to-Use Universal Primer
• Use Prior to Tiling & Levelling
• Hi-Performance Water-Based
Modified Polymer
• For Smooth, Non-Porous Substrates
Top Tip: Substrates must be free from loose materials and contaminants like dust and grease before priming.
Deep Fill, Fibre Reinforced Universal Renovation Screed. Perfect for Fast 3 - 50mm
• POLYMER MODIFIED
• OVERBOARDED TIMBER FLOORS
• SUITABLE FOR UNDERFLOOR HEATING
• 1 PART
SLC 100
Cementitious, self-levelling and smoothing underlayment.
SLC 2500
SLC 3015 FAST
Ultra-rapid setting, Fiberflex™ reinforced, self-levelling and smoothing underlayment.
SLC
and
underlayment.
Fast-drying, cement-based self-levelling and smoothing screed for concrete floors.
PRODUCT
SLC 1550 FLEX
EXPLORE OUR FLOOR LEVELLERS:
SLC 100
SLC 1500
SLC 2000
SLC 2500
SLC 3015 FAST
LLC 200
LLC 206NA
SUITABILITY
Fast track domestic & commercial use on difficult substrates. e.g. timber
Ideal for offices, dwellings, schools, hospitals, airports etc.
Underfloor Heating
Pour & Pump
Suitable for levelling most common subfloors Pour & Pump
PRIMADRY
Fast track domestic and commercial situations.
Ideal for offices, dwellings, schools, hospitals, airports, etc.
Suitable for overlaying carpet, ceramic tiles, vinyl, resin coatings etc.
Pour & Pump
Fast track commercial and industrial situations
Achieves a hard-wearing level finish for warehouses, factories etc.
Can be over-coated with epoxy coatings to improve abrasion resistance
Underfloor Heating
Pour & Pump
Eliminates surface irregularities
Ideal for smoothing internal & external concrete surfaces
Suitable for industrial traffic
Provides exterior wearing surface Pour & Pump
Fast track domestic and commercial areas.
Ideal for offices, dwellings, schools, hospitals, airports etc.
Underfloor Heating Pour
Most rigid surfaces prior to the installation of floor coverings
(e.g. vinyl, carpet & ceramic floor tiles)
Used on sub-floors e.g. sand/cement screed, concrete & wooden floors
Suitable for use in biologically sensitive areas
Underfloor heating Pour
Used to prepare most rigid surfaces prior to the installation of floor coverings such as vinyl
Suitable over most old adhesive residues
Underfloor Heating Pour
Fast track construction and refurbishment projects
Ideal for domestic and commercial areas
Suitable for use in place of traditional semi-dry screed, i.e. unbonded,
bonded or floating constructions, and standard or heated screeds
Underfloor Heating
Screeded / Pumped
Ideal for small floor areas prior to the installation of resilient floor finishes (carpet and vinyl) rather than applying a self-leveling compound
to the entire floor
Suitable for smoothing joints between different surfaces, covering tile grout joints, for use over vinyl tiles, etc.
Trowel
2.5L
FLOORING CHART 22
TARMAC RESTORER
High Performance Surface Coating for Reviving & Renewing Tarmac & Driveways.
• MAKES OLD TARMAC LOOK LIKE NEW
• ATTRACTIVE, LOW SHEEN, PROTECTIVE FINISH
• PROTECTS AGAINST FUEL, OIL, WEATHERING & WEEDS
• TOUGH, DURABLE SEAL
• DRIES IN 4-5 HOURS
• 4-6M²/L PER COAT
BRICK & PATIO CLEANER
DECKING & PAVING CLEANER
ALGAE REMOVER
Hydrochloric Acid-Based Cleaner for Dissolving Cement & Mortar Stains
Highly Concentrated Outdoor Cleaner for Decking, Paving, Paths and more
Liquid Chemical Algaecide & Fungicide for Eradicating Red & Green Algae
Ready-to-Use, Solvent-Based, Masonry Water Repellent
ACRYLIC CONCRETE SEALER
Hardwearing Acrylic-Based Sealer for Concrete Paving & Cementitious Floors
PATH & PATIO SEALER
Tough, Water-Based Acrylic Sealer for Concrete Paths, Yards etc.
RAPID REPAIR MORTAR
Rapid Setting Cementitious Patching Mortar. Repair Walls, Floors, Steps, Edges & Corners Quickly.
• FAST SETTING & DRYING
• CHLORIDE-FREE & NON-CORROSIVE TO REINFORCING STEEL
• EASY MIXING
SAND & CEMENT
• Specially Selected Aggregates & Cement Designed for a Multipurpose Mix
• 3:1 Sand to Cement Ratio
• Ideal for Screeding, Bedding Slabs & Paving
RAPID REPAIR CONCRETE
• Specially Formulated Cement-Based Patching & Repair Compound
• Rapid Setting in 30 Mins
• Recommended for Areas of Less Than 2m²
EPOXY CONCRETE REPAIR
• Solvent-Free, Epoxy
Resin-Based Topping/Mortar Kit
• Provides an Effective Thin Layer
Repair, Floor Finish or Thick Bed
Epoxy Adhesive
• Bonds Stone Paving to Metal Recessed Covers
LEAK PLUG
• Ultra Quick Setting Waterproofing Compound
• Repairs & Seals Water Leaks
• Works on Concrete, Rock, Manholes, Block & Brickwork
PRIMING SLURRY
Paving Primer Slurry for Creating the Essential Bond Between Paving and Bedding Mortar in Bound Surface Construction.
• SUITABLE FOR PORCELAIN, NATURAL STONE, PRECAST CONCRETE, FLAGS & CLAY PAVERS
• A CONTROLLED BLEND OF AGGREGATE, CEMENT & GGBS
• EASY TO APPLY
• MIXING, JUST ADD WATER
• BS 7533 COMPLIANT
• IMPROVES BOND
FINE-JOINT
• Flexible & Rapid Setting
Tile Grout
• 1-15mm Joint Widths
• Just Add water
• Internal & External Use
CODE COLOUR SIZE PACK
K400L10 LIMESTONE 10KG 1
K400G10 GREY 10KG 1
K400A10 ANTHRACITE 10KG 1
FLOW-JOINT
• Rapid Setting, Flowable Grout
• 3-50mm Joint Widths
• Low Shrinkage
• Frost Resistant
CODE COLOUR SIZE PACK
K44517 NATURAL 17KG 1
K445B17 BUFF 17KG 1
K445C17 CHARCOAL 17KG 1
BRUSH-JOINT
• Brush-In Jointing Compound
• 3-20mm Joint Widths
• Apply in All Weather
• Quick & Easy Installation
COLOUR SIZE PACK
K360BU15 BUFF 15KG 1
K360G15 GREY 15KG 1
K360BL15 BLACK 15KG 1
BRICK-SLIP BOND
• Flexible, Non-Slip Adhesive
• Designed for Brick Slip & Stone Installations
• 3-20mm Bed Depth
• Internal & External Use
K34017 17KG 1
MORTAR PLASTICISER
Plasticising Air-Entraining Admixture for Site-Mixed Bricklaying & Plastering Mortars. Improves Mortar Increases Frost Resistance.
• REDUCES SHRINKAGE & CRAZING
• REPLACES LIME & CHLORIDE-FREE
• INCREASES FROST PROTECTION
• IDEAL FOR SITE MIXING
• BS EN 934
• EXTRA STRENGTH LIQUID
• REDUCES WATER REQUIREMENT, SHRINKAGE & CRAZING
• REPLACES LIME & CHLORIDE-FREE
• INCREASES FROST PROTECTION
• BS EN 934
CONCENTRATED MORTAR PLASTICISER
• High Strength Concentrated Liquid
• Reduces Water Requirement,
Shrinkage & Crazing
• Replaces Lime & Chloride-Free
• Increases Frost Protection
• 10-25ml per 25kg Cement
CODE SIZE PACK
M10601 1L 12
PRUFPLAST
• Liquid Integral Waterproofer
• Vapour Permeable
• For Mortar, Render & Concrete
• Non-Retarding & Chloride-Free
BUILDING CHEMICALS
PINK WATERPROOFER
• Integral Waterproofer
• Pink Liquid Form
• For Mortar, Render & Concrete
• Non-Retarding & Chloride Free
CODE SIZE PACK
M31005 5L 4
M31025 25L 1
INTEGRAL WATERPROOFER
• Pore-Blocking, Permeability-Reducing Admixture
• Vapour Permeable
• Non-Retarding & Chloride-Free
• Colourless & Non-Staining
CODE SIZE PACK
M10505 5L 4
M10525 25L 1
CODE SIZE PACK
M40005 5L 4
M40025 25L 1
Formulated using a carefully selected blend of synthetic surfactants, ensuring consistent, high-quality results on site.
POWDER MORTAR PLASTICISER
• Permeability and absorption reduced
• Vapour permeable
• Allows structure to ‘breathe’
• Helps prevent efflorescence
• Easy to use
• 0.5kg per 25kg cement
CEMENT COLOURS
• Concentrated Powder Colour Pigments
• Suitable for Coloured Mortars, Mixes & Renders
• Resealable Packs
• Available in 4 Colours
• 2% by Weight of Cement
M353E00 BLACK
M353E12 BLACK 12.5KG 6
M353B00 BROWN 0.5KG 6
M353B01 BROWN 1KG 6
M353R00 RED 0.5KG 6
M353R01 RED 1KG 6
M353Y01 YELLOW 1KG 6
POWDER WATERPROOFER
• Increases Water Repellency
• Reduces Permeability & Absorption
• Vapour Permeable
• Easy To Use
Improves the properties of both fresh and hardened concrete, mortar & screed.
• Water Resistant Wood Adhesive
• Ready To Use
• Fast Strength Development
• Ideal for Wood & Laminate
Flooring, Kitchens, Window
Frames, Joints & More
PVA BOND
• General Purpose Adhesive
• Additive for Internal Mortars & Renders
• Primer for Plastering
• Woodworking Adhesive
• Seals Concrete, Brick & Timber
• Improves Strength & Workability
SBR BOND
• Improves Flexural & Tensile Strength
• Improves Abrasion & Chemical Resistance
• Reduces Shrinkage & Water Permeability
• Non-Corrosive to Steel
EASY POST
Fast Setting, High Strength, Post Fixing Mortar. Simply Pours Into Post Hole Over Water and Rapidly Sets. Ideal for Fence Panels & Posts.
• FAST & EFFICIENT POST INSTALLATION
• EASY TO USE
• SETS IN 5-10MINS
• NO MIXING REQUIRED
• IDEAL FOR FENCEPOSTS, GATEPOSTS, GARDEN FURNITURE, LIGHTING AND MORE
SAND & CEMENT 3:1
• Multipurpose Sand & Cement Mix
• Easy to Use
• Just Add Water & Mix
• 3:1 Ratio by Volume / 4:1 Ratio by Weight
40N CONCRETE
• High Strength Traditional Concrete
• >40N/mm²
• Easy To Use
• Just Add Water & Mix
CODE COLOUR SIZE PACK M100330 BLUE 330ML 1 CODE
MORTAR TUBS
• High Quality, Multi-Trip, Crane
Lift Polyethylene Tub
• 330L Capacity
• Extremely Strong & Durable
• SWL 650kg
• Fully Tested
Did You Know? We manufacture our own Mortar Tubs in-house, ready for use on your site.
MULTIGROUT 60
Heavy Duty Construction Grout for Dowel Bars, Under Machinery Base Plates, Crane Rails, Bridge Bearing Pads, Transformers, Handrails, Stanchions, Holding Down Bolts and more.
• HIGH EARLY & ULTIMATE STRENGTH
• FOR HEAVY DUTY CONSTRUCTION APPLICATIONS
• DURABLE & LOW WATER ABSORPTION
• >60N/MM² IN 28 DAYS
MULTIGROUT EP
• Heavy-Duty, Pourable, Solvent-Free, Epoxy Resin-Based Grout
• Good Chemical Resistance & Non-Shrink
• 70MPa
• 25N/mm² in 8 Hours
Y55005 5KG 1
RAPID ANCHOR EA
• Ideal for Anchoring Fixings, Rebar & Threaded Collars
• Fast Setting in 10 Mins
• ETAG001 Rated
• 60MPA
LARFIX E LARPRIME EU
• For Bonding & Fixing Concrete, Rock, Glass & Metal
• Works on Horizontal, Inclined & Vertical Surfaces inc. Overhead
• Waterproof & Temperature Resistant Up To 70°C
• Heavy Duty & Low Shrinkage
CODE SIZE PACK
X400A01 1KG 1
X400B01 1KG 1
X400A05 5KG 1
X400B05 5KG 1
• Universal 2 Part Epoxy Primer
• Provides Excellent Adhesion
• Absorbs & Transmits High Stresses
• Long Open Time
CODE SIZE PACK
X800A01 1KG 1
X800B01 1KG 1
X800A05 5KG 1
X800B05 5KG 1
INJECTION RESIN
The Ultimate Epoxy Resin-Based Crack Injection System. This low viscosity, solvent-free crack injection system is perfect for repairing Fine & Hairline Cracks in reinforced concrete structures.
WATCH HOW TO USE LARSEN INJECTION RESIN HERE!
• EPOXY RESIN-BASED CRACK INJECTION SYSTEM
• VERY HIGH STRENGTH (80N/MM²)
• BONDS TO DRY & DAMP SURFACES
• NON SHRINK CODE SIZE
QUICKSET
• Fast Setting Cementitious Patching Screed Mortar
• High Early Strength
• 20+ N/mm² in 2 Hours
• Traffic in 2-4 Hours
CONCRETE FLOOR PAINT
• High-Gloss, Oil-Based Floor Paint
• Based on Tough Polyurethane Resins
• Provides a Tough, Durable Finish
• Ready To Use & Easy to Apply
WATER DISPERSIBLE EPOXY PAINT
• Concrete Sealer for Reservoirs, Dairies & Food Processing Areas
• Medium Duty Floor Sealer
• Use with Suitable Aggregate to Produce Slip & Skid Resistant Surfaces
• Water Dispersible & Solvent-Free CODE
X203W05 WHITE 5L 1
X203SG05 GREY 5L 1
X203R05 RED 5L 1
LARCOTE PE (PITCH EPOXY)
• High-Build, Thixotropic Pitch Epoxy
• Provides a Hard, Semi-Flexible, Waterproof & Vapour-Proof, Black Film for Concrete & Metal
• Ideal for Wet Processing Areas, Industrial Tanking
& Chemical Process Plants
• Excellent Adhesion & Chemical Resistance
LINE MARKING PAINT
• High Colour Pigment Line Marking Paint in an Aerosol Dispenser
• Contains High Quality Pigments, Resins, Hardeners & Fast Drying Solvents
• Apply By Hand or With a Line Marking Applicator
• Available in 4 Colours & UV Stable
STORM REPEL
Creamy Silane/Siloxane Based Impregnating Water Repellent. Materials can be Applied In One Coat, by Brush Roller or Airless Spray - even Overhead. Gives Maximum Reduction in Water Absorption & Protection from Water, Pollutants & Freeze/Thaw Damage to Brick, Mortar & Roofing Tiles.
• ELIMINATES SURFACE DUSTING
• ENHANCED ABRAISON, CHEMICAL, OIL & WATER RESISTANCE
• EASIER FLOOR MAINTENANCE
• COVERAGE: 6-10M²/COAT
STAIN REPEL
• Water & Oil Repellent
• Surface Remains Breathable
• Allows Easier Removal of Dirt, Grease, Graffiti, Chewing Gum
• Suitable for Concrete, Reconstituted Stone, Render & Natural Stone
CODE
AGENT
• Suitable On All Types of Form Work
• Provides High Quality Surface Finish to Concrete
• Dries in 1-3 Hours
• Easy to Apply
CODE SIZE PACK
M51305 5L 4
M51325 25L 1
M51395 200L 1
• Solvent-Based, Hardwearing Acrylic Sealer for Concrete, Shake-Top, Paving & Cementitious Floors
• Forms a Tough, Resilient Enamel
• Superior Chemical Resistance & Improves
Wear Resistance
• Easier Floor Maintenance
CODE
X601A10 5L 1
DUSTPROOFER
• Surface Hardening Liquid for Concrete Floors, Floor Screeds & Renders
• Improves Wear Resistance & Improves Floor Life
• Can Be Used On New & Old Concrete Floors
• Easier Floor Maintenance
CODE SIZE PACK
M30905 5L 4
M30925 25L 1
M30995 200L 1
EPOXY IMPREGNATING SEALER LARSEAL SUPER
• Solvent-Based, Hardwearing Acrylic Sealer for Concrete, Shake-Top, Paving & Cementitious Floors
• Forms a Tough, Resilient Enamel
• Superior Chemical Resistance & Improves
Wear Resistance
• Easier Floor Maintenance
MBM 60
MANHOLE BEDDING MORTAR
Rapid Setting Mortar for the Bedding of Street, Highway & Residential Ironwork including Manhole Cover Frames to BS EN 124.
• 20MPA AT 1 HOUR
• OVER 60MPA AFTER 28 DAYS
• 10-75MM BED DEPTH IN ONE PASS
•
&
MBM 90 MANHOLE BEDDING MORTAR
• Over 20N/mm² Within 2 Hours
• Open to Traffic in 90 Min
• Over 50N/mm²
• Coverage: 25kg Covers 1m2 at 12.5mm
MBM 534 MANHOLE BEDDING MORTAR
• HAPAS Approved Bedding Mortar
• Open to Traffic in 60 Min
• >20 MPa in 2 Hours
• Non-Shrink & Frost Resistant
MBC 10 MANHOLE BACKFILL CONCRETE
• HAPAS Approved Rapid Strength Concrete
• Ideal for Backfill of Ironwork, Haunching Reinstatements, Post & Barrier Erection
• Over 20Nmm² in 2 Hours
• Coverage: 25kg Makes 12L Concrete
Did You Know?
Our HAPAS approved Ironwork Bedding Mortars & Backfill Concrete can be used individually or together as a system
CONCRETE
Fast Set, Early Strength Reinstatement Concrete for Large & Small, Patch & Full Repairs to Car Parks, Bridge Decks, Warehouses & Farm Buildings.
• EN1504-3 R4
• CLASS III HIGH SLIP/SKID RESISTANCE
• RESISTANT TO FREEZE/THAW & DE-ICING SALTS
• COVERAGE: 25KG MAKES 12L CONCRETE
IPR 06
INSTANT POTHOLE REPAIR
• One Visit for Instant & Permanent Repair
• Open to Traffic Immediately
• All Weather Use
• Skid Resistance >60 PSV
POLYESTER MORTAR
• BBA/HAPAS Approved Polyester Resin Mortar
• Ideal for Highways, Critical Locations & Heavily Trafficked Areas
BES 10 BITUMEN EDGE SPRAY
• Bonds Asphalt to Concrete & Seals Edges
• Easy to Use
• Prevents Water Ingress
• Reduces Risk of Freeze/Thaw
Larsen Highway Maintenance products combine quality, performance and user-friendly designengineered for professionals without compromise.
SCAN TO EXPLORE HIGHWAY MAINTENANCE
High-Performance Slurry Grout Jointing Mortar.
• BS 7533 COMPLIANT
• ECO-REDUCED CARBON
• FAST & EFFICIENT APPLICATION
• GROUT LARGE AREAS SMOOTHLY & QUICKLY
Natural Charcoal Mid Grey Buff
FBC ECO FINE BEDDING CONCRETE
• BS 7533 Compliant
• Eco-Reduced Carbon
• Ideal for Natural Stone Setts, Cobbles, Flags, Concrete & Clay Paving
• Compressive Strength: >40MPa
FBC PERMEABLE ECO FINE BEDDING CONCRETE
• BS 7533 Compliant
• Eco-Reduced Carbon
• Ideal for Clay, Concrete or Natural Stone Paving
• Compressive Strength: >35MPa
GPM ECO GUN POINTING MORTAR
• High Strength Gun Applied
Jointing Mortar
• Eco-Reduced Carbon
• Available in 5 Colours
• Compressive Strength: 15MPa
CODE COLOUR SIZE PACK
M33825 NATURAL 25KG 1
M35825 CHARCOAL 25KG 1
M34225 BLACK 25KG 1
M34525 WHITE 25KG 1
M34025 BUFF 25KG 1 EXPLORE & SPECIFY LARSEN PRODUCTS
STREETSCAPE PRIMING SLURRY ECO
Priming Slurry & Bonding Mortar for Bound Surface Construction.
• BS 7533 PART 101 COMPLIANT ECO BONDING MORTAR
• PRIMES PAVING SLABS
• STRONG ADHESION
• 25KG BAGS
• 3 Part Pack
• Solvent-Free Epoxy Mortar
• Exceptional Strength & Bond
• Waterproof & Chemically Resistant
EPOXY MORTAR (EM) PROTECT
• Advanced Water Based Impregnating Surface Protector
• Stain Repellent
• Suitable for Natural Stone
• Coverage: 25L - 125m²
SEAL PLUS 3IN1
• Sand Stabiliser, Protector & Sealer
• Accelerated Joint Stabilisation
• Domestic & Commercial Use
• Coverage: 2m² / L
(as Sand Stabiliser),
6m² / L (as Protector & Sealer)
EXPLORE & SPECIFY LARSEN PRODUCTS
BLACK BITUMEN PAINT
High-Quality, Fast-Drying, Solvent-Based, Black Bitumen Paint. Provides a Waterproof, Weatherproof & Corrosion Resistant Protective Coating.
• EASY TO APPLY / QUICK DRYING
• APPLY BY BRUSH OR AIRLESS SPRAY
• RESISTANT TO ALKALIS/ACIDS (LOW CONCENTRATIONS)
• BRUSH: 3-52/L | SPRAY: 6-8M2/L
BLACK BITUMEN PRIMER
• High-Quality Bitumen Primer
• Easy to Apply by Brush or Airless Spray
• Quick Drying
• Brush: 3-52/L | Spray: 6-82/L
ROOFING COMPOUNDTROWEL GRADE
• Thick, Heavy Bodied Roofing
Compound
• Repairs Cracks in All Roof Types
• Ideal for Glazing Bar Mastic on Roof Lights
• 0.72/kg at 1mm
FELT ADHESIVE
• Heavy Duty Bituminous Roofing Adhesive
• Bonds Felt to Timber, Metal, Concrete, Asphalt and More
• Ready to Use
• 1.5-3.02/L
ROOFING COMPOUNDBRUSH GRADE
• Fibre & Mineral Modified Bitumen Solution
• Protects Roof Structures
• Ideal for Flat Roofs & Gutter
Repairs
• 1.52/L/Coat
ALUMINIUM REFLECTIVE PAINT
• Bright Silver Finish
• Protects Roofs & Walls from Sun & Weathering
• Smooth Surfaces: 102/L
• Porous or Rough: 5-82/L
F1X
All-In-One MS-Polymer Sealant & Fixing Product. Ensures Excellent Grip, Bond & Seal on Dry, Wet & Underwater Surfaces.
• NOVEL ADHESIVE AND SEALANT
• MS POLYMER
• REPLACES NUMEROUS OTHER PRODUCTS
• EXCELLENT ADHESION TO MANY SURFACES
• EN 15651-1: F-EXT-INT-CC CLASS 20HM)
• EN 15651-3: S (CLASS XS3)
Top Tip: Ensure surfaces to be sealed are clean, dry, sound and free from dust, oil & grease.
• Multi Purpose
• Acetoxy Silicone Sealant
• Low Shrink
• Excellent Adhesion
CODE COLOUR SIZE
D203B01 BROWN 290ML 25
D203C01 CLEAR 290ML 25
D203E01 BLACK 290ML 25
D203G01 GREY 290ML 25
D203W01 WHITE 290ML 25
• Acrylic Sealant
• Paint Over in Just 1 Hour
(Emulsion Paint)
• Smooth Finish
• Flexible Filler
FIRE CEMENT SEALANT
• Seal Fireplaces, Fire Bricks, Solid Fuel Ovens etc
• Use with Larsen Fire Cement
• Temperature Resistant up to 1200°C
• Easy to Apply
FIRE CEMENT
• Patch & Repair Fireplaces, Fire Bricks, Solid Fuel Ovens etc
• Ready-To-Use Blend of Thermal Binders & Temperature Resistant Fillers
• Temperature Resistant up to 1200°C
• Easy to Apply
CODE SIZE PACK
M35201 1KG 12
M35202 2KG 6
M35205 5KG 1
• Hand Held Fast Setting
Expanding Adhesive Foam
• Bonds, Fills, Seals & Insulates
• Expands Up To 55x Volume
• CFC Free & Tack-Free in 20 Min
• Gun Grade Fast Setting
Expanding Adhesive Foam
• Bonds, Fills, Seals & Insulates
• Expands Up To 55x Volume
• CFC Free & Tack-Free in 20 Min
Larsen offers a full range of high-performance admixtures tailored to the demands of the concrete industry. Our expert technical support ensures optimal mix design for maximum performance and cost-efficiency in any application.
Available in 200L, 1000L IBC or Bulk Tanker
Super Plasticisers
Collection of third-generation high performance superplasticisers and high range water reducers for use in ready mixed concrete. Designed to allow concrete to be supplied to site at a consistence that is practical for placing but at a w/c ratio that is economical and of good quality.
Waterproofers
Admixtures used to increase the water repellency of render, mortar and concrete. By increasing the water repellency but maintaining the vapour permeability of a mix, there is reduced water absorption, lower risk of efflorescence and staining, and higher durability.
Accelerators
A range of set and hardening accelerating liquid admixtures for concrete and mortar. Designed to rapidly accelerate the setting times and early strength of Portland cement mixes.
Air Entrainers
Plasticising / air-entraining admixtures for mortar, based on synthetic surfactants. Designed to produce a small, stable bubble matrix that improves workability and frost resistance of ready mixed mortars while reducing bleed.
Retarders
Plasticising / retarding admixtures for mortar, based on synthetic surfactants. Designed to extend the working time of ready-mixed mortars and reduce the water requirement.
SCAN TO EXPLORE LARSEN ADMIXTURES
Larsen’s Silo Mortar System offers a clean, efficient solution with minimal waste - produce only what you need, when you need it. Backed by 50 years of industry expertise, we provide unmatched technical support across all stages of the construction process.
Available in 20kg Bags, 950kg Bags & Bulk
Building Mortar
Factory controlled, prescribed general purpose, 6:1 masonry mortar for external use in elements subject to structural requirements. It is a blend of specially graded, kiln dried sands, Portland cement and air entraining agents. Suitable for building, bedding and pointing brick, block and stone. Available in M4, M6 and M12 strengths.
Plastering Mortar
Factory produced, high-quality, general-purpose render specially designed to EN 998-1 for multi-coat hand application. It is manufactured from a controlled blend of sands, cements and additives to give a high-quality rendering product, which is suitable for use in external rendering and internal plastering.
Mortar Colours Available
LIMESTONE
YORKSTONE
SCAN TO EXPLORE LARSEN SILO MORTAR
Larsen’s Precast range of market-leading products include cement-based mortars for repair, installation, support, packing and bedding applications in precast applications.
Precast range also includes Multigrout 60, Rapid Anchor & Acrylic Concrete Sealer
Precast Patch Repair
A polymer modified, fast setting, low shrink, cement-based mortar. Chloride free and low shrink, it is designed for rapid repairs to precast concrete units, filling larger blowholes and repairing edge damage.
Precast Skim Coat
A polymer modified, extra fine, fast setting, cement-based mortar. Chloride free with low shrink, it is designed for thin layer application to produce a fair faced appearance to concrete surfaces. For scrape coats of up to 3mm depth.
Thixotropic Mortar
An easy-to-use, pumpable mortar with high early and ultimate strength (>65 N/mm²) in 28 days. Chloride free and easy-to-use, it is designed to provide a structural infill where grouting is inappropriate. Great for plugging joints as an inset shuttering.
Structural Bedding Mortar
An easy-to-use, packing and bedding mortar with high early and ultimate strength (>50 N/mm²) in 28 days. Chloride free and easy-to-use, it is designed for use between precast concrete units to provide a smooth, flush finish.
STRONG INSTORE PRESENCE
A strong shelf presence and visual impact is achieved with our distinctive packaging and we provide a range of point-of-sale options to punch home our key messages throughout our product ranges. We are proactive in helping you to stimulate sales and have invested heavily in our presentation to enhance your environment for your customers.
BUILDING CHEMICALS
Hotel Bathroom, Warwickshire
@solihull_tiling_specialists
Larsen products have been used in prestigious projects across Ireland and the UK. Architects, specifiers and leading brands trust Larsen to deliver high performance and peace of mind.
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Mulroy Bridge, Donegal Admixtures
