SILCOLEASE PSA 401 A1 is supplied at high solid content and high viscosity. It can be used as such or be diluted by addition of an appropriate aromatic solvent such as toluene or xylene.
To achieve optimum properties, the addition of an organic catalyst is recommended (benzoyl peroxide* - premixed to 50% - added at a concentration of 0,5 to 3% relative to SILCOLEASE PSA 401 A1) The adhesive properties depend on the curing conditions used; they are generally of around a few minutes at temperatures of 130 - 200°C .
SILCOLEASE PSA 401 A1 is a silicone pressure sensitive adhesive (PSA) used in coating films and fabrics for the production of high performance pressure sensitive tapes. It's a compounded solution of polydimethyl siloxane gum and resin diluted in toluene
Excellent cohesive strength at room and high temperature
Improved loop tack adhesion with good peel adhesion
Good resistance to humidity and natural ageing
High viscosity for coating on woven surfaces
Increased productivity (quick drying)
Plasma / flame spray masking tapes
High-performance electrical tapes
Applications where high shear resistance is required