Recommendation? Need an adhesive which can withstand high heat.

[SCBaldr]

I've been having problems with loc-tite brand epoxy. I'm making a segmented set of handle scales and even after a 24 hour cure, the heat from the grinder just makes the epoxy let go. Is there a type of adhesive which can withstand high heats?

 

[John Cahoon]

Hi SCBaldr , since no one replied I'll put in my .02... I use JB weld and pretty sure it's rated to 500 degrees F. I mostly use it for guards.

Also, when I do composites scales I pin them lengthwise with 2 threaded rods down low to the tang so they don't "emerge". You might also consider a G10/fiber liner to help hold it all together.

 

[joedhiggins]

You got to profile grind prior to attaching scales. If you are grinding your scales and seeing sparks, that is a sign to stop grinding there. If you do have to do serious grinding on the tang, you gotta go slow. Second or two in an area and let it cool off. Same for pins.

 

[SCBaldr]

Just to be clear, the scales have not been fit tot the handle yet. I'm gluing together segments of dissimilar wood with copper spacers to create a set of segmented scales. When I go to flatten everything out on the grinder in preparation for drilling the pin holes, this is when I'm getting heat failure of the epoxy resin.

 

[tim37a]

3M makes some hi temp epoxys for aircraft work. Contact them.

 

[AVigil]

You are gluing Copper?

That is a problem, that copper heats up far faster then the surrounding materials and it does not like to be glued.

JB weld, sharp brand new 50 grit belt on slow is the way to go. Other wise it will heat up so fast it will melt that epoxy.

 

[SCBaldr]

Thanks for the recs. I think its gonna be jb weld and I'll switch to the file for roughing in the glued scales.