zz Posted August 30, 2015 Share Posted August 30, 2015 Been using 2 part epoxy both 5 minute and 30 minute in small jobs.. Does the 30m cure time provide a stronger bond, or is it just the curing times. Thanks Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted August 30, 2015 Share Posted August 30, 2015 Longer the curing time stronger the bond I believe Ian John Quote Link to comment Share on other sites More sharing options...
onetenor Posted August 30, 2015 Share Posted August 30, 2015 Just look at original Epoxy ARALDITE LOnger time or gentle heat Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted August 30, 2015 Share Posted August 30, 2015 From actual tests that I have done, it doesn't matter which you use. These tests have been done several times over the years. THE WOOD BREAKS EVERY TIME NOT THE GLUE. Edited By Peter Miller on 30/08/2015 08:35:24 Quote Link to comment Share on other sites More sharing options...
Don Fry Posted August 30, 2015 Share Posted August 30, 2015 There is another factor which relates to a property of the glue called toughness. Brittle at one end of the scale, tough at the other. A tough glue tends to deform a little, storing energy when stressed. A brittle glue does not move, and stress concentrates at a point, leading to local failure, and this is the initiator of total failure. You will find that long cure epoxies are tougher. The wood fails first with either, but a slow cured joint tends to fail at a higher stress level. ARTF users find that old hot melt joints fail. The reason is that the plasticisers used in the glue leach out with time, and the plastic changes from tough rubbery stuff to brittle glass. But best is, don't hit the ground hard. Quote Link to comment Share on other sites More sharing options...
zz Posted August 31, 2015 Author Share Posted August 31, 2015 My question answered. Thanks to everyone. Ian Quote Link to comment Share on other sites More sharing options...
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