ASTM C712-14 (R2021) PDF Download

ASTM C712-14 (R2021) is a standard test method that determines the degree of bubble formation or surface blistering in one-part, elastomeric, solvent-release type sealants when exposed to elevated temperatures. These sealants often contain solvents that can cause bubbling and blistering on the surface, and the type of substrate used can also affect these issues. The purpose of this test method is to differentiate between sealants that develop a smooth surface and those that may have blistering tendencies.

The standard highlights that blistering is often caused by misapplication, and this test method is useful in identifying sealants that may be prone to blistering. It does not mention any similar ISO standard and specifies that the subcommittee with jurisdiction is not aware of any such standard.

This standard provides guidelines for evaluating the performance of elastomeric sealants in terms of surface bubbling and blistering, which can be important considerations for ensuring the quality and effectiveness of sealant applications.