Silicone adhesive MasterSil 323S-LO

for rubberfor plasticsfor ceramics

Master Bond MasterSil 323S-LO is an addition cured silicone that is thermally and electrically conductive. This ASTM E-595 low outgassing rated product is designed for bonding applications where low stress is critical and is appropriate for use in vacuum environments. It can be utilized in the aerospace, electronic, opto-electronic, and specialty OEM industries. Product Advantages *Thick paste consistency *Long working life *Will cure in thicker sections *Superior conductivity *Vacuum compatible Master Bond MasterSil 323S-LO is a two component, silver filled silicone with superb electrical conductivity along with very convenient processing. Both Parts A and B have smooth, paste consistency. The mix ratio is a user friendly 1 to 1 by weight. The working life for a 20 gram mass is 2 to 3 hours. The best cure schedule options are 8-12 hours at 130-150°F, 4-6 hours at 160 to 180°F or 2-3 hours at 190 to 210°F. The system has low shrinkage upon curing and reasonably good dimensional stability for a silicone system. MasterSil 323S-LO has good adhesion to many materials including metals, ceramics, glass, composites as well as many types of rubber and plastics. Perhaps its most impressive feature is its flexibility and elongation. Consequently, it can withstand aggressive thermal cycling as well as mechanical and thermal shocks. Its paste consistency allows it to be easily applied as an adhesive, sealant or coating. Since it is an addition cured system it cures readily in thicknesses up to and beyond 1/4 inch thick. Both Parts A and B contain silver and appear that way in color.