SILCOOL™ TIA219R and TIA219RP thermal potting silicones are two-component, thermally conductive materials typically used for potting and gap filling. When cured at room temperature or quickly with heat, they cure to a thermally conductive rubber and adhere well to various types of materials such as metals, plastics, glass and ceramics, without the use of primers. TIA219RP is the prolonged pot life version of TIA219R.