Heat curing epoxy...

[mmattockx]

I thought they were a powder that is mixed with water before use?

Unibond is a powder mixed with a liquid that comes with it. Some others are powder that you mix with water. They all have a pretty limited shelf life, even compared with epoxies.


Mark

[Longcruise]

I thought they were a powder that is mixed with water before use?

Unibond is a powder mixed with a liquid that comes with it. Some others are powder that you mix with water. They all have a pretty limited shelf life, even compared with epoxies.


Mark

Limited shelf life in the powder form or after mixing?

[Buggs]

Unibond 800 is a liquid urea formaldehyde resin mixed with a wood flour hardener. If you thought epoxy was remotely hazardous to work with, it's got nothing on formaldehyde.

[onetone]

Back in the day when I laminating Hondo Mahogany for exterior applications I used Resorcinol. Glue lines blend well with mahogany, but it is very messy and it stains anything it touches - very messy! And there is that problem with formaldehyde ... epoxy is a big step up imo.

[Shredd]

  I don't always use Epoxy but when I do I use EA40...

[attachment=1]

[Buggs]

 

If I could look that sauve, I'd get some EA-40 right now!

[mmattockx]

Limited shelf life in the powder form or after mixing?

In the unmixed form. The stuff MM said was like hardened jello was most likely a sealed package that sat on the shelf too long in a retail store.


Mark

[Kirkll]

Well..... If you measure the quality of using different types of materials and glue by taking surveys on the internet you can get a pretty good cross section of opinions and base your own choices accordingly.

You can also get a lot of bogus info based on info passed along by people with no real experience, or very little experience with the product at all.  I believe 2nd hand info is called hear say.... I would highly recommend looking closely at the source of your info.

Until you have used a product, or multiple products yourself and experienced the difference, and used it in many different applications, you won't really know for sure.

There are a lot of key board experts out there that are very good at researching knowledge gained by what others have experienced, but have very little hands on experience themselves. Theory and opinions based on 2nd hand info is great for helping make decisions on trying something new and expanding your own knowledge base.

But be very careful how much stock you put into a lot of this so called expert advise you get from inexperienced people that cannot show you their finished products, have a solid base of craftsmanship with decent longevity,  with good references.   Talk is cheap...     Kirk

[kennym]

""But be very careful how much stock you put into a lot of this so called expert advise you get from inexperienced people that cannot show you their finished products, have a solid base of craftsmanship with decent longevity,  with good references.   Talk is cheap...     Kirk""

Yep!!

[Buggs]

Back in the day when I laminating Hondo Mahogany for exterior applications I used Resorcinol. Glue lines blend well with mahogany, but it is very messy and it stains anything it touches - very messy! And there is that problem with formaldehyde ... epoxy is a big step up imo.

Resorcinal was always the favorite adhesive of the Bamboo Flyrod builders. It was the first glue I used for an all wood laminated bow. It was plenty strong and flexible, but you are right about the mess! It was a no brainer to choose epoxy over the wood flour glues.

[Mad Max]

But be very careful how much stock you put into a lot of this so called expert advise you get from inexperienced people that cannot show you their finished products, have a solid base of craftsmanship with decent longevity,  with good references.   Talk is cheap...     Kirk

I agree, there is a facebook page on building selfbows and there is a TON of bad Info. on there

[Mad Max]

I just noticed I'm in the TG Hall of Fame wif Kenny
What does dat mean?

[kennym]

I still don't know or how I getted there...

[Buggs]

You guys get your picture up at the P.O. now, or what?

[Mad Max]

You guys get your picture up at the P.O. now, or what?

[Crooked Stic]

Where is this Hall of Fame ??

[Mad Max]

Where is this Hall of Fame ??

Under YOUR name

This is a new thing Terry is doing
https://www.tradgang.com/tgsmf/index.php?topic=178839.0

[Longcruise]

Where is this Hall of Fame ??

You are in it.

[Bvas]

Where is this Hall of Fame ??

Over the bumpy bridge, past the old Johnson place, then hang a left at the big oak. Drive a few more miles, then hard right at the fallen barn. Then just keep going a couple ridges over.... Ya can't miss it!!!  If ya come to a creek ya went to far. If ya end up in the creek, ya went waaay too far.

[Mad Max]