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Some Handi-Foam items are classified as E-84 Class1, what does this mean?

April 26, 2017class1 Classified e-84 handi-foam items mean

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Some Handi-Foam items are classified as E-84 Class1, what does this mean?

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A. ASTM E-84 Class 1 is a rating indicating a material is fire rated product. When a flame-retarded material passes a specified flammability test, it is termed a fire rated product. In practical terms, a fire rated product aids in reducing the risk of flashover in a major fire by its diminished role on supporting combustion. However, being organic in nature, fire rated products are still combustible. Even the most flame retarded urethane foam will undergo combustion at temperatures exceeding 1022°F (550°C).