Bostik® Marine 940 Fast Set is a high performance, rapid moisture-curing, fast skinning, one-component, hybrid polymer sealant/adhesive based upon Silyl Modified Polymer (SMP) Technology; specially formulated to withstand harsh marine environments. Possesses UV resistance, is sandable and paintable. Exhibits superior adhesion to porous and non-porous surfaces in most applications without the use of a primer, a feature not typically found in traditional sealant/adhesives. Maintains elasticity within temperature range of -40°F to 212°F (-40°C to 100°C).