Add TinThix Liquid Thickening Agent to liquid tin-cured silicone rubbers (TinSil®) to thicken the mix for brush-on application. Add up to 5% TinThix of the total mixed weight of the silicone mix. Experiment to determine the best amount to add for your application. NOTES: Mix Part A and Part B together first and then add TinThix. For additional information, read the Technical Bulletin associated with the silicone product being used.