Since its founding in Houston in 1937, RectorSeal has built its identity around solving practical problems for professional tradespeople. The company began with specialty chemical sealants, and its RectorSeal No. 5 thread sealant became a lasting plumbing-industry staple. Today, RectorSeal develops trade solutions for contractors while expanding its reach through established brands such as Shoemaker, MARS, and AmRad.
UL 1479
certification
UL 2079
certification
UL 2998
certification
CARB certification
certification
Factory Mutual (FM) approval
certification
ASTM E1966 / UL 2079
compliance_program
ASTM E814 / UL 1479
compliance_program
ASTM E84
compliance_program
IMC Code 307.2.3.4
compliance_program
IMC Code 307.2.5
compliance_program
UL 2043
certification