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ericjforman

Adhesive recommendations for gluing Tough PLA to wood

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Posted · Adhesive recommendations for gluing Tough PLA to wood

I'm looking for a good structural adhesive/glue that will bond wood to Tough PLA. There are many epoxies and methacrylates out there, many work with ABS but are untested or not recommended for PLA. I'm not sure if Tough PLA is easier or harder to bond with? 

 

Ideally:

  • Transparent or untinted translucent 
  • <15 minute work time
  • Works with dispenser (i.e cartridge in a gun)

 

Candidates so far:

JB Weld - clear, 5 minute work time (doesn't come in cartridges?) - $6 for 25ml -- easy to find but doesn't work in dispensers

PC-Clear Epoxy - clear, 5 minute work time (1:1 ratio) - $10 for 50ml -- not supported for PLA, but...?

Plexus MA685 - translucent clear, 8 minute work time - $18 for 35ml -- expensive, $28 with shipping!

 

Would love any recommendations. Thanks!

 

IMG_2365.jpg

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Posted (edited) · Adhesive recommendations for gluing Tough PLA to wood

Thanks kman. I did some research and found that the Devcon Plastic Welder you recommended is also sold as Plexus MA300, and there is also a Devcon Plastic Welder 2 which is aka Plexus MA310. Plastic Welder 1 is also sold as DA291. They are different brand names owned by the same company, ITW.

 

Plastic Welder / MA300 / DA291 is opaque cream or black, or white (291), and has a work time of 3-5 minutes

 

Plastic Welder 2 / MA310 is opaque cream only and has a work time of 15-18 minutes

 

I spoke to some technicians at ITW and they said MA310 is better with "difficult to bond to" plastics, so for TPLA they said it should work better than MA300. 

 

However another adhesive specialist said that anecdotally he has heard of better results with MA300. ?

 

So, both will probably work fine, and it just comes down to working time and color preference. I'm going to try the MA310 and see what happens. For anyone else looking, this is the cheapest place online I could find for the 50ml cartridge ($17 + $10 shipping).

 

If you're okay manually mixing without a dispenser, MA300 is available on Amazon for $6.41 for 25ml.

 

 

Edited by ericjforman

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Posted · Adhesive recommendations for gluing Tough PLA to wood

Or, if you are cheap like me (and have found the product I pointed to to be working fine) you can get a pack of 6 of these right here for $23.99 USD.

https://smile.amazon.com/gp/product/B00C3Z9UMY/ref=oh_aui_detailpage_o03_s00?ie=UTF8&amp;psc=1

 

HOWEVER! Most of my stuff needs that fast working time. Others not so much.

 

Good info on the same product different names though. ?

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