
A-26
AST Seal Material
A-26 is a cast urethane material designed to seal roof penetrations on External Floating Roof Tanks (EFRT) and Internal Floating Roof Tanks (IFRT). A-26 features high resistance to abrasion, 100% liquid and vapor aromatics, neat MTBE, U/V and ozone. A-26 offers excellent hydrolytic stability,
tensile strength and chemical compatibility to provide maximum service life.
A-26 RED
AST Seal Material
A-26 Red is a polyester base, cast urethane elastomer formulated and designed for applications requiring exceptional resistance to abrasion, impact, cutting and tearing. A unique continuous casting process provides long length capability and ensures a consistently uniform thickness. Applications include column seals, vertical ladder wells, gauge pole wells and other roof penetrations.








