SIS 440 Teak Deck Caulking
- One-part polymer adhesive/sealant neutral cure
- No primer necessary*
- Over 35 years of proven success
SIS 440 Caulking provides the durability boat owners require. It is a one-part, paste-like neutral cure formulation and when exposed to moisture in the air, it reacts to form a tough, flexible, solid rubber. Once cured, it has excellent temperature stability and chemical resistance. This neutral cure is noncorrosive to all substrates.