PRODUCTS 21
NEW CONCRETE PRODUCT SEALING SYSTEM
IMPROVES PRODUCT MARKETABILITY
Home-grown concrete manufacturing
edge of the concrete products or pallets.
and concise information. It allows for
solution provider, PMSA, has introduced
The spraying system may be used on the
easy input of data, as well as application
an advanced sealing solution to protect
wet side (prior to curing) and on the dry
recipes which can be created via the
pavers, slabs and blocks, as well as
side (after curing). All the nozzles also
touch-screen panel for various products
precast and wet-cast products from
have specially designed mechanisms
and then stored.
the effects of weathering, staining and
that prevent clogging and resultant
Besides relevant parameters, such
efflorescence.
downtime. In addition, the Finke system
as applied quantity, pallet speed rate
The equipment supplier’s imported
has an integrated sensor that monitors
and pallet length, the recipes also store
range of ProSeal and ProSeal Plus
the temperature of the product, as it
the positioning of the spray nozzles, eg
sealants, as well as its intelligent low-
shouldn’t be applied at temperatures
for different product heights. When a
pressure spraying system, allow seam-
below 10°C,” says Booysen.
particular recipe is uploaded, the spray
less sealing of concrete products while still in the production plant in a rapid and cost-effective manner. The film-forming sealants reduce the penetration of external impurities, as well as the formation of efflorescence. In addition, the new water-based sealants are 100% solvent-free and environmentally friendly. According to PMSA marketing and sales manager Quintin Booysen, the automated application of sealants is less
“The precise coverage of each product on the pallet significantly improves the marketability of concrete products.”
system automatically moves into the pre-programmed position. The control system is also equipped with a LAN port, making it possible to access via the Internet at any time.
Benefits of the PMSA-Finke SPA system • Easy integration into the pallet
transport system.
• Precisely adjustable
labour-intensive and the precise coverage
He explains that speed, pallet and prod-
of each product on the pallet significantly
uct size, temperature variances and other
improves the marketability of concrete
factors are pre-programmed into the unit,
• Short installation time.
products due to their improved appear-
as well as a measurement of the exact
• Adaptable to various
ance, colour intensity and long-lasting
amount of ProSeal sealant to be applied.
application quantity.
pallet sizes.
• Uniform sealer application.
repellent and strength characteristics. Easy controls
• Sturdy and reliably built.
Spraying system
These measurements are then used in
• Low maintenance.
“The sealants are best applied with our
accordance with the program, which
• When used on dry side, infra-red
precision SPA spraying system from
means that even if the pallet feed rate
Finke Solutions, which ensures exact
changes, the spray system automati-
• Clogging of nozzles is prevented.
measurement of sealants for complete
cally adapts to such changes. The pallet
• Application quantity is approxi-
coverage of each unit on pallet – with
feed rate can be entered manually or the
mately 70-200g/m², depending
almost no wastage.
control panel of the spray system can be
on surface texture and
“It’s a low-pressure system that
linked via a “Profibus” with the control
absorbency.
applies the sealants in an exceptionally
panel of the production machine, which
uniform manner, avoiding excessive spray
then specifies speed and applied quantity.
mist. It has two outer nozzles which ex-
The SPA spraying system is operated
tend the coverage to exactly the outer
via a touch-screen panel, giving clear
PRECAST | ISSUE TWO | 2020
heaters are required.
(Above): PMSA’s ProSeal and ProSeal Plus sealants being applied with its PMSA-Finke SPA spraying system.