Primer (PT24)

PT24 is suitable for sticking between the silicone rubber and s metal. It is high active and easily decomposable silane coupling agent. The Hydrolysis end-group of PT24 can be condensed with the hydroxy key of metal surface to be SiO key. Meanwhile, its organic end-group can be crosslinked with silicone rubber caused by peroxy radical to realize the sticking between the metal and silicone rubber.

Please note the following points when using PT24.
1). The metal surface should be cleaned.
2). PT24 should be diluted to 2-3 times by using of toluene in order to spread equably on the plastic surface.
3). The metal should be placed for more than 4 hours after spreading with PT24 under room temperature or to be baked for half an hour in the oven under 70-80ºC under ventilated condition in order to let PT24 hydrolyze fully.
4). The treated metal should be heat cured together with silicone rubber, some products may be cured but the sticking process has not been finished, thus the products don't stick well, because sticking reaction need time and some products have different shapes and thickness.
5). Note: The metal products suitable for PT24 are carbon steel, stainless steel, copper, aluminum and iron plated by zinc etc.