... is required. It is an ideal sealant for high temperature construction applications. It reacts with atmospheric moisture to produce ... % siliconel Fast cure,high strenghl Remains flexible at low (-40°C) and high(260°C) temperatures.l Will not crack,shrink or become ... high temperaturesInstructionsFor best result, apply the sealant between +5°C and +40°C.Surfaces must be clean,dry,oil and frost free. ...