- Chemical Family:Siloxanes
Andisil® 2827-186L is a high purity 1,3 - Divinyl Tetramethyl Disiloxane that is used as a linear inhibitor in the formulating of two-part Silicone RTV-2 Addition- Curing systems. Because of the large vinyl content (10.75 mmole/gm), small amounts are very effective in retarding and controlling the working time or pot life of two-part Addition-Curing Silicone RTVs. Also, due to its boiling point of 139 ºC, it is easily volatilized during curing. It is recommended that tests be performed to determine the exact quantity of Andisil® 2827-186L used in a formulation to customize the working time one requires. A suggested starting formulation is to use 0.25 to 0.50 parts by weight of the Andisil® 2827-186L with 100 parts of the Base polymer containing the platinum catalyst.