With more customers requesting insulation installs for their residences and businesses, contractors are increasingly interested in finding out more about the application of spray foam. Many realized the benefits of spray foam insulation for cold weather as the frigid temperatures set in, resulting in calls to contractors who need to figure out how to maintain their foam product in temperatures not conducive to its operation and storage.
When winterizing and storing hoses over an extended amount of time, be sure to clean the system thoroughly. Often, the flush and remaining isocyanate will separate over time. With the isocyanate clinging to the hose walls, fittings and various locations throughout the equipment doesn’t come out 100% with an initial flush. As a result, when the hose is put back in service, the heating required will cause expansion – dis-bonding the settled isocyanate. To help prevent this, be sure to thoroughly flush the system and follow up with a second flush within 3-4 days. This action will allow time for the remaining isocyanate to settle and be cleared with clean flush.