ArmorThane Tech Tip: Proper Handling & Storage Of Polyurethane Foam

417-831-5090 technical@armorthane.com 2660 N Eastgate Ave Springfield MO 65803

Tech Tip: Proper Handling and Storage of Polyurethane Foam When working with polyurethane foam, proper handling and storage are critical for maintaining product performance and ensuring a smooth application process. Polyurethane foam is a versatile and highly effective material, but like any chemical product, it needs the right conditions to perform at its best. This tech tip will guide you through the essential practices for handling and storing polyurethane foam, drawn from years of experience here at ArmorThane.

Why Handling and Storage Matter Polyurethane foam consists of two main components: isocyanates (Part A) and polyols (Part B). These components are sensitive to temperature, moisture, and contamination, all of which can negatively impact the quality and performance of the foam. By following the proper storage and handling protocols, you can ensure that your foam maintains its integrity and performs reliably on every job.

Storage Conditions: Keep It Dry and Cool Moisture Control: The number one enemy of polyurethane foam is moisture. Isocyanates (Part A) react with water, which can cause the foam to cure prematurely, leading to poor performance or even product failure. Ensure that the storage area is free from excessive humidity, and always keep containers tightly sealed when not in use. For additional protection, use desiccant packs inside storage rooms to reduce moisture levels.

417-831-5090 technical@armorthane.com 2660 N Eastgate Ave Springfield MO 65803

Temperature Stability: Polyurethane foam should be stored at temperatures between 60°F and 80°F (16°C to 27°C). Storing materials outside of this range can result in poor flow, uneven mixing, or even chemical degradation.

Extreme heat can cause material expansion, while cold can lead to viscosity changes that make proper mixing and application difficult.

It’s also a good idea to avoid rapid temperature fluctuations. For instance, if you store materials in a cooler environment, allow them to gradually adjust to room temperature before use. Sudden shifts in temperature can cause condensation, introducing moisture into the containers, which, as we know, can wreak havoc on your foam.

Handling Polyurethane Foam: Safety and Best Practices Proper PPE When handling polyurethane foam, personal protective equipment (PPE) is essential. Always wear gloves, protective eyewear, and respirators when working with the components, especially in confined spaces. Polyurethane foam chemicals can irritate the skin and eyes and, when inhaled, can cause respiratory issues. At ArmorThane, we recommend using well-ventilated workspaces and ensuring your team is properly trained in PPE usage.

Mixing and Application Preparation Before you begin mixing the components, ensure that both Part A and Part B are at the correct temperature and have been stored properly. If the chemicals have been sitting for an extended period, you may need to agitate Part B to redistribute any settled material evenly. This ensures the correct chemical reaction when the two parts combine.

Remember to perform a visual inspection of both components before use. Any signs of contamination— such as discoloration, sediment, or cloudiness—indicate that the material may not perform as expected.

Dispose of any contaminated materials following your local regulations.

417-831-5090 technical@armorthane.com 2660 N Eastgate Ave Springfield MO 65803

Shelf Life: Know When to Use It or Lose It Polyurethane foam has a finite shelf life, which is typically indicated on the product label. While proper storage can help extend the usability of the foam, it’s essential to rotate your inventory to ensure that you’re using the oldest materials first. Expired foam components may not mix or cure properly, leading to poor performance or job failures.

Pro Tip: Use a “first-in, first-out” (FIFO) approach to ensure that you’re always using the freshest materials. Mark your containers with the date they were received to make tracking easier.

Transporting Polyurethane Foam: Plan for the Road If you need to transport polyurethane foam to a job site, take care to protect the materials from the elements. Polyurethane foam components should not be exposed to direct sunlight, as UV radiation can degrade the chemicals. Also, ensure that the materials are stored in a stable environment during transport to avoid temperature fluctuations or physical damage to the containers.

Final Thoughts from the Field Proper handling and storage of polyurethane foam may seem like a minor aspect of your job, but it can make all the difference between a successful application and a costly redo. By maintaining strict control over moisture, temperature, and storage conditions, you’ll ensure that your foam performs consistently and reliably every time. At ArmorThane, we take pride in helping our applicators deliver high-quality results, and proper material management is one of the most critical components of that success.

Stay vigilant, stay prepared, and your foam will thank you for it—by delivering the top-tier performance that ArmorThane is known for.