Contact Cement help

limp · Sep 16, 2022

Been many years since I have used Contact Cement, but seems like you painted both surfaces, let it dry, and when you stick them together they are stuck.
I have been trying the Dow spray can product in the picture and I can't get it to work, Spray both sides and if I let it dry for 10 minutes or 2 hours it barely has any stick power to it?
Using this to install some new firewall insulation and the insulation that glues to the top part of the firewall...
Am I doing something wrong??

7991LXnSHO · Sep 16, 2022

Dap Weldwood in a bottle is great stuff. I’ve never tried it is a spray can. Is the insulation too porous for the product?

This has been the strongest stuff for upholstery for consumer use.

Robot or human?

7991LXnSHO · Sep 16, 2022

If the link does not work, it is for 3M headliner and upholstery adhesive. The stuff for door panels is not as strong.

limp · Sep 16, 2022

7991LXnSHO said:
If the link does not work, it is for 3M headliner and upholstery adhesive. The stuff for door panels is not as strong.

It worked, thank you

96pushrod · Sep 17, 2022

We use some contact adhesive at my work called Ec-1357 that’s made by 3m. It’s what a lot of upholstery on planes, as well as some outer gasketing is sealed on with. You can buy it by the pint and roll it in. Sticks very well

LX Dave · Sep 18, 2022

I've found if the material is really porous, like that insulation is, double or triple coat the insulation. Leave some dry time between coats or it'll take forever to be ready to stick. I have not ever used that stuff, usually use the 3M Hi Strength 90 for stuff like that.

7991LXnSHO · Sep 18, 2022

LX Dave said:
I've found if the material is really porous, like that insulation is, double or triple coat the insulation. Leave some dry time between coats or it'll take forever to be ready to stick. I have not ever used that stuff, usually use the 3M Hi Strength 90 for stuff like that.

I was thinking the same about multiple coats on the fiber parts.
I’m seeing a pattern about 3M.

limp · Sep 18, 2022

7991LXnSHO said:
I was thinking the same about multiple coats on the fiber parts.
I’m seeing a pattern about 3M.

Already tried the multiple coats with air dry time in between..... Just has no stick to it...
Just glued some foam where my heater blower motor attaches to the HVAC box.... Same thing, very little stick um.....
LIke de greaser and " woke" solvent tanks, I am betting the formula has changed since I was a younger person..

limp · Sep 25, 2022

Per the recommendations on here I tried some 3M 90 spray adhesive.... Seems to be working.. Much better than the dow garbage....

90sickfox · Sep 26, 2022

I use 3m 90 for a bunch of stuff. Good stuff when applied correctly.

Contact Cement help

limp

wrap a little cheese around it and its a done

7991LXnSHO

wanna catch the space herp

7991LXnSHO

wanna catch the space herp

limp

wrap a little cheese around it and its a done

96pushrod

I think they're a little easier to get off

LX Dave

7991LXnSHO

wanna catch the space herp

limp

wrap a little cheese around it and its a done

limp

wrap a little cheese around it and its a done

90sickfox

Wasn't a pretty sight...and I've got big hands

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