Metal to fiberglass adhesive

[A930Rocket]

I’m moving my trusty Issac head and neck restraint from my old helmet to my new helmet and need an adhesive to join metal to fiberglass. The two pieces are about 2“ x 1“.

When I installed it on my old helmet, it came with a green two-part epoxy.

Any suggestions on type/brand to use?

[rfuerst911sc]

I think I would call the manufacturer for what they supply or use . Too important of a safety system to gamble .

[A930Rocket]

Originally Posted by rfuerst911sc

I think I would call the manufacturer for what they supply or use . Too important of a safety system to gamble .

They are out of business.😢

Different race sanctions require a one handed release and although it’s a safe system, it takes two hands to release it….Left and right.

[Bob Kontak]

Just a thought. Auto body panel adhesive.

Check out the tech data sheet

https://www.3m.com/3M/en_US/p/d/b40066467/

If you buy a single two part cartridge it may not be too expensive. Skip the applicator gun is what I'm thinking. Mix by hand.

$55 on amazon
https://www.amazon.com/3M-08115-Panel-Bonding-Adhesive/dp/B000PEW4MI/ref=sr_1_2?keywords=3m+58115&qid=1678381015&sr=8-2

[rfuerst911sc]

This stuff is excellent . I have used on fiberglass boats , it does NOT let go !
3M marine adhesive sealant 5200

https://www.3m.com/3M/en_US/p/d/b40066983/

[Bob Kontak]

Originally Posted by rfuerst911sc

This stuff is excellent . I have used on fiberglass boats , it does NOT let go !
3M marine adhesive sealant 5200

That would probably be plenty strong enough. Here's a smaller size.

https://www.amazon.com/3M-05220-Marine-Adhesive-Sealant/dp/B0000AY6CA/ref=sr_1_4?crid=24CSADXILEY1D&keywords=3M%E2%84%A2+Marine+Adhesive+Sealant+5200&qid=1678381364&sprefix=3m+marine+adhesive+sealant+5200%2Caps%2C24 2&sr=8-4

[flatbutt]

I need to attach a ring anchor to my poly kayaks. Would any of these work?

[LWJ]

As this is a critical life safety device, you should treat it as such.

Can you find the MSDS (or whatever the current name is) for the original adhesive? Then, use that.

[rfuerst911sc]

Originally Posted by flatbutt

I need to attach a ring anchor to my poly kayaks. Would any of these work?

I have yet to see anything adhered with 3M 5200 come unstuck . It grips like crazy . Try to buy the smallest tube and try to use the entire tube . It starts curing as soon as you remove the cap .

[911 Rod]

Originally Posted by rfuerst911sc

I have yet to see anything adhered with 3M 5200 come unstuck . It grips like crazy . Try to buy the smallest tube and try to use the entire tube . It starts curing as soon as you remove the cap .

This stuff is nuts! You'll break whatever it is glued to before the glue gives.

[sduser]

3M 8115 is the panel bonding adhesive used in automotive manufacturing and repair process. Experience leads me to believe that the gel coat of the helmet will give out before the bond does.

[IROC]

How does that work? The belt feeds through the large roller piece on the right (above) and then it pins to the helmet? To release it, you have to reach up, find the pins (2 of them) and pull them? I must be missing something. There's no way I would try to do that in a fire situation.

I use a Necksgen. Pop the camlock on the harness belt and climb out.

[bleucamaro]

3M Scotch-Weld 2216.

Surface preparation is more important than the adhesive itself.

[A930Rocket]

Originally Posted by rfuerst911sc

This stuff is excellent . I have used on fiberglass boats , it does NOT let go !
3M marine adhesive sealant 5200

https://www.3m.com/3M/en_US/p/d/b40066983/

I was looking at this one as well and it’s on my shortlist.

Originally Posted by Bob Kontak

Just a thought. Auto body panel adhesive.

Check out the tech data sheet

https://www.3m.com/3M/en_US/p/d/b40066467/

If you buy a single two part cartridge it may not be too expensive. Skip the applicator gun is what I'm thinking. Mix by hand.

$55 on amazon
https://www.amazon.com/3M-08115-Panel-Bonding-Adhesive/dp/B000PEW4MI/ref=sr_1_2?keywords=3m+58115&qid=1678381015&sr=8-2

I just happen to have some bonding adhesive from 3M. That was on my shortlist.

Originally Posted by rockfan4

It looks like there's 4 screw holes in the mount. Couldn't you put the helmet on and run 4 3" deck screws in? That should hold it.

Haha! That really was an option back in the day with machine screws and washers but I used the supplied adhesive.

[A930Rocket]

Originally Posted by IROC

How does that work? The belt feeds through the large roller piece on the right (above) and then it pins to the helmet? To release it, you have to reach up, find the pins (2 of them) and pull them? I must be missing something. There's no way I would try to do that in a fire situation.

I use a Necksgen. Pop the camlock on the harness belt and climb out.

The rollers attached to the shoulder harnesses and the restraint connects to the helmet with a push pin. They are like small shock absorbers that allow you to move your head but in quick situations like an accident, they hold the head up. Push the lock pin button in and pull. It only takes a couple seconds.

[A930Rocket]

Per the original instructions it was advised to sand off only the gelcoat so that the adhesive would properly adhere.

[Captain Ahab Jr]

Strongest glue you can use to bond aluminium to fibreglass is 3M 9323 for use in ambient temperatures

Every F1, Indycar, Le Mans winning chassis for probably the last 20yrs will have been bonded with this stuff

Preparation and cleanliness is just as important as choosing the right glue

[mattdavis11]

Here you go it even says it's green two part epoxy


https://www.rshughes.com/p/3M-Scotch-Weld-1838-Green-Two-Part-Epoxy-Adhesive-Base-Accelerator-B-A-2-Fl-Oz-Kit-20148/021200_20148/

[A930Rocket]

I was doing a search on the Isaac and I found a post by Moses. Back in 2008, he bought one on eBay for $28!!!

In the thread, Jack Olson, posted that he uses one.

Mine cost around $800.

ISAAC head and neck restraint. Thoughts?

[A930Rocket]

Originally Posted by mattdavis11

Here you go it even says it's green two part epoxy


https://www.rshughes.com/p/3M-Scotch-Weld-1838-Green-Two-Part-Epoxy-Adhesive-Base-Accelerator-B-A-2-Fl-Oz-Kit-20148/021200_20148/

Out of stock, but the replacement is pint or quart size for $281.

It’s hard to believe doing a search and finding dozens or more of 3M adhesive.