Metlweld Epoxy Adhesive

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MetlWeld is a super tough epoxy adhesive designed to bond dissimilar materials such as steel to wood. MetlWeld exhibits excellent elastic properties and superior bond strength while remaining rigid.

MetlWeld will bond to stainless steel, galvanized steel, aluminum, copper, glass, ceramic, neoprene rubber and most porous surfaces. For use in high stress applications when bonding metals to materials such as glass, composites, wood and concrete.
  • 100% waterproof.
  • Will not shrink upon curing; fills large gaps without loss of strength.
  • Features a convenient 1:1 mixing ratio.
  • Superior adhesion to brass, copper, bronze, aluminum, galvanized, stainless and mild steel, glass, wood, composite and most porous materials.
  • Forms permanent, non-brittle bonds with high impact and creep resistance.
  • Cures reliably at temperatures as low as 50F.


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This is a very good epoxy. Slow set-up time gives you plenty of time for alignment after the glue-up.

Robert M Verified Purchase


January 24, 2023

Wonderful product, works great

Bake M Verified Purchase


June 15, 2022

I used this product to bond a steel axle to a titanium gear leg of an experimental aircraft. It was recommended by a builder of a similar aircraft. The adhesive worked perfectly. Follow the directions to the letter and you will get excellent results.

Matthew M Verified Purchase


January 8, 2022

I bonded wood faring to steel. This product gives plenty of time to work with what your doing and after it cures you have a very strong bond.

Neil R
February 27, 2020

This was a tough situation. I had to glue aluminum to neoprene to the bottom of a stool. This works better than anything else I’ve tried

Michael H
February 8, 2020

Easy mixing and excellent strength when cured. Used this epoxy to repair a plastic headset yoke and it worked very good.

Tim W
June 18, 2019

I had serious reservations about an epoxy glue claiming be able to bond aluminum. I decided to try it and so far so good. I've tried to break a few test bonds and adhesive has beat my best attempts.. The only negative is measuring is difficult because the catalyst is very sticky. I would recommend this product.

William B
December 12, 2014


Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Will Metlweld bond aluminum to aluminum?

Yes, it can bond aluminum to aluminum.

Q: Can I use Metalweld Epoxy Adhesive to fix the base plate on a carburetor? One corners is broken off.

We have no records of this product used for this application. Please review the tech data sheet in the document tab to determine if might work for your application.

Q: How much heat will Metlweld epoxy adhesive take?

MetlWeld has a maximum service temperature of 125F. At this temperature, the cured epoxy will start to soften but will remain highly crosslinked.

Q: Is the Metlweld epoxy adhesive paintable?

Yes, please allow the epoxy to fully cure before sanding in preparation for paint.

Q: Is it good for -40 when it is cured? I want to use it to bond a ice stop to my metal roof

Per Manufacturer: "We have not tested any of our adhesives under those conditions, so we cannot make any guarantees."

Q: Will metlweld work on lower unit crack on a outboard motor?

I would think so. It is water proof nd seems like it will bond most materials.

Q: Will this METLWELD bond well with carbon fiber cloth?

This is not a laminating resin, so there is no data how it would work with just cloth.

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