Holding Power

[Jwgriesser]

Is there any difference In holding power using 5 minute epoxy vice 24 hour epoxy on knife scales?

Thanks Jay

 

[Matt Rochester]

I believe 2 ton epoxy is 2 ton epoxy. The difference is that the slower setting epoxy aren't as brittle making them more appealing to knife makers.

 

[Drew Riley]

I think loc-tite used to put "weight" rating on their epoxies. IIRC, the difference was pretty negligible. That said, I don't like to rely on epoxy to hold anything; it's more/less just a moisture barrier in my eyes. I almost always use corbies or peened pins to actually hold the scales.

 

[grizzled gizzard]

There haven't been numerous tests without learning things. I've done much of my own research with the most popular adhesives. When I hear of something new I try it.

There are a Lot of differences in epoxy. I don't think I've ever seen inexpensive or fast setting epoxies hold up to newer epoxies or the old standard for me, Acraglas.

There are other factors like adding dye, powdered metal or different types of flock to different epoxies.

The modern two part adhesives are pretty amazing IMHO as well.

I will always use the best materials I can find. Not cheapest, most popular, easy to use or easy to get.

 

[Jwgriesser]

Drew: I also use pins that are expoxyed in.

 

[Frank Niro]

If you are into the glues, I understand you should be perhaps looking at fiber glass. Yes, the stuff used in car repairs.
Frank

 

[Matthew Gregory]

I will always use the best materials I can find. Not cheapest, most popular, easy to use or easy to get.

This.


Surface prep is probably more important than the epoxy. ASK THE MAKER OF THE EPOXY how to do it.

If you're serious about making stuff to the best of your ability, do the research, and don't ask other makers. 99% of the information we circulate is the result of talking amongst ourselves, and perhaps reaching the wrong conclusion.

 

[12345678910]

This.
Surface prep is probably more important than the epoxy. ASK THE MAKER OF THE EPOXY how to do it.

Oh yea, TECH Service, not Customer Service.
Good companies have good RnD departments and very knowledgeable Tech Service.

Is there any difference In holding power using 5 minute epoxy vice 24 hour epoxy on knife scales?

Thanks Jay

The high speed epoxies have lower strength than the slow cures.

Do yourself a favour and get slow cure. It gives you time to mix and assemble.


I think more important than holding power in tons, is holding power in years


Search for a post by Ed Caffrey, he talked to a glue engineer.

The hardware store stuff is designed to let go after some years.



The marine stuff for boats, or accraglass from Brownells lasts decades



The stuff by loctite - henkels is good too, well backed by huge research, tech service
Fantastic if you want info on which glue will stick this material to that one.

 

[Metalhead0483]

99% of the information we circulate is the result of talking amongst ourselves, and perhaps reaching the wrong conclusion.

Very well said.

Anything you learn on a forum can be (I say "can be," not "is" There's some really good info going around on here especially) suspect. Use it as a reference point, check with the manufacturers, and most important of all (IMHO) do your own tests!

 

[lukus]

Read the fine print on the epoxy. Most of the 5 minute epoxies say not for use on underwater joints. it will get soft and eventually fail underwater. The slow cures do not.