Edgeflyer Posted March 11, 2021 Share Posted March 11, 2021 Is this product suitable for heat resistant repairs. The elbow leaks but I think if I encase it in epoxy it should seal. Needs to withstand 105 deg c Quote Link to comment Share on other sites More sharing options...
Edgeflyer Posted March 11, 2021 Author Share Posted March 11, 2021 Quote Link to comment Share on other sites More sharing options...
Don Fry Posted March 11, 2021 Share Posted March 11, 2021 An epoxy is good for 105 C. Where does 105 C come from? And what does the elbow do? Quote Link to comment Share on other sites More sharing options...
extra slim Posted March 11, 2021 Share Posted March 11, 2021 The table on their website says -40 -> 120 degrees C Quote Link to comment Share on other sites More sharing options...
Martin Harris - Moderator Posted March 11, 2021 Share Posted March 11, 2021 I've never heard of this product but for high temperatures, JB Weld High Heat or Extreme Heat might fit the bill... Quote Link to comment Share on other sites More sharing options...
Robin Colbourne Posted August 5, 2021 Share Posted August 5, 2021 I've used K-Poxy, a metal loaded epoxy to repair exhaust systems, including gluing hangers onto them. I've also run qualification tests on epoxy components to go on jet engines. In one case a component was better in all respects (tensile, peel, indentation, fluid susceptability) after a test at 250°C for five hours, than before. Whatever epoxy you use, once its cured, do a post-cure by taking the component to above the temperature it will see in service for about 12 hours without putting any load on the joint. Otherwise the first time it gets warm the joint will go rubbery and in all likelihood the joint will fail. Putting glass or carbon fibres across the crack would help increase the strength across the joint. Make sure all parts are thoroughly degreased before attempting the bond, and warm the parts with a hair drier to get the epoxy to as low a viscosity as possible. This JB Weld Epoxy Putty should take the temperature: JB Weld High Temperature Epoxy Putty Even JB Weld original can take over 280°C: JB Weld Original Don't be tempted to go for anything that is rapid/5 minute or anything like that, they aren't as strong. I looked at JB Weld Extreme Heat, but it appears to be much the same as Holts 'Gun Gum'. Quote Link to comment Share on other sites More sharing options...
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