Run ASTM C1087 compatibility screening for structural glazing accessories (gaskets, spacers, shims, setting blocks)

Steps

1. Confirm ASTM C1087's current scope on the ASTM store — a laboratory screening procedure for determining compatibility of liquid-applied structural sealants with SSG accessories after heat and UV exposure.
2. Compile the exact accessory materials (gasket compound, spacer, shim, setting block) and sealant product proposed for the project, since results are product-specific and not transferable between different sealant/accessory combinations.
3. Request the sealant manufacturer's C1087 compatibility test report for the specific accessory materials, or commission new testing if no report exists for that combination.
4. Evaluate the report's stated criteria — discoloration and adhesion loss after exposure are the key failure indicators — before approving accessory substitutions during submittal review.
5. Flag any accessory substitution proposed after initial compatibility testing for re-verification, since a substituted gasket or spacer material invalidates the original C1087 result.