Application Considerations During Seasonal Temperature Changes

This technical tip provides guidance on application considerations for closed cell spray foam during seasonal temperature changes. It outlines the importance of selecting appropriate reactivity grades based on environmental conditions, emphasizing that the contractor is responsible for adhering to the latest Technical Data Sheets (TDS) and product application guidelines. The document explains the basic reaction of foam chemistry, detailing how temperature and pressure affect the foam reaction and quality. It highlights potential issues when using summer grades in winter and vice versa, including insufficient heat, slower foam rise, excessive catalyst, and gun clogging. Recommendations for handling temperature transitions in spring and fall are also included, advising adjustments in processing temperatures and pressure settings. The importance of maintaining proper storage temperatures for Iso and Resin products is noted, along with the necessity for the applicator to verify foam cure and adhesion throughout the application process. Additional technical assistance contact information is provided.