Activity Feed › Forums › Sign Making Discussions › General Sign Topics › Dibond Silicone General Sign Topics Dibond Silicone Posted by Jason Xuereb on October 29, 2007 at 7:55 am Whats the silicone called that they used between dibond sheets to allow for the expansion due to heat etc? Martin Cole replied 16 years, 6 months ago 3 Members · 3 Replies 3 Replies Kevin Flowers Member October 29, 2007 at 10:44 am Jason as far as i know its not silicone its a thermo plastic. Dibond expands & contracts very little Kev Jason Xuereb Member October 29, 2007 at 11:22 am Oh sorry I don’t mean the core. I mean when you butt up two sheets together and you want to fill the gap between the sheets? Maybe its a sealant? Martin Cole Member October 29, 2007 at 3:51 pm quote Jason Xuereb: I mean when you butt up two sheets together and you want to fill the gap between the sheets? Shouldn’t be a gap Jason, use a backing strip to join the panels. As Kevin says Dibond and the like has a very small expansion rate. Log In to Reply Log in to reply. Public All Members My Connections Only Me PublicAll MembersMy ConnectionsOnly Me Public All Members My Connections Only Me Log In to Reply Start of Discussion 0 of 0 replies June 2018 Now