3M Super 77

[chopthebass]

Is this 3M glue ok to stick the vinyl dash? I bought some marine vinyl and was advised to get a rubber glue to stick it.

[Timb]

It doesn't seem to hold up to heat well. It has been ok on the dash of my coupe where it is folded under and screwed down but I have had issues with my headliner sagging. Will need to pull it out a redo it

[chopthebass]

Good to know. I will search out contact glues, unless someone can recommend one.

[ArcticAZ]

Use plasticizor resistant 3M Spray 80 - specifically made for rubber and vinyl. Available at Home Depot.
I originally used 3M spray 90, but it failed and peeled up over an AZ summer.

AAZ

[amasciarelli21]

I have found that Landau adhesive is the best product for all interior work, you should use a spray gun to apply.

Ang

[j.miller]

We use NAPA brand carpet vinyl top spray glue. Comes in an orange can (imagine that)....closest thing to the old school spray gorilla snot I have found....on another note....The FFR supplied foam backed dash pad, well, It's so a guy without upholstery "know how" can do his dash. I take ours and have them pro done. Thin padding glued to the face with all holes cut then vinyl glued and wrapped over that with the larger holes (gauges) dart cut and the smaller ones just opened up......tight , clean and nice.The Landau glue is great if you can get it, but ya need a cheep gun with 2.0 tip,. ..Da Bat

[edwardb]

I too use the DAP Weldwood Landau Top & Trim HHR Contact Cement, and have had excellent results. It's a professional product, and not widely available. I've been able to mail order it. Not cheap especially with the added hazmat charge. Don't know how easy it would be to get in Canada. I've heard of guys going to their local upholstery shop and getting a small quantity. They typically get it in 5 gallon pails. Agreed it's made to be sprayed, but I've had OK luck with brushing or rolling just like regular contact cement. Just takes more. I show my dash builds in both of my build threads, each done with this material. Highly recommended if you can get it.

[chopthebass]

Awesome. Thanks everyone.

[6t8dart]

Dont discount 3M so fast, you need to use the right stuff for the job. I have been using 3M spray adhesives for over 30 years and as long as you use the right ione for the job, you will not have any problems. See the chart below.

For High heat resistance and headliners, you need to use #80. I have used this on several cars, and many years later, they still hold up., as a matter of fact, most foam in headliners deteriorates before the glue. Also, some glues will damage the foam and dissolve it, which will weaken the bond. Also, each type has a specific application pattern, tack time, and dry time. Typically, you need to clean the hard surface of any oils or debris, spray each side in an opposite pattern, wait the recommended tack time, then stick together, smooth, but don't forcefully press down, wait for it to bond completely. You may need to wait for a day or two to completely dry.

51208

[6t8dart]

I should add that 77 is the last one I would use, its good for low strength, fast production, light weight material, but it is not the best for high heat environment.

[edwardb]

Dont discount 3M so fast, you need to use the right stuff for the job. I have been using 3M spray adhesives for over 30 years and as long as you use the right ione for the job, you will not have any problems. See the chart below.

For High heat resistance and headliners, you need to use #80. I have used this on several cars, and many years later, they still hold up., as a matter of fact, most foam in headliners deteriorates before the glue. Also, some glues will damage the foam and dissolve it, which will weaken the bond. Also, each type has a specific application pattern, tack time, and dry time. Typically, you need to clean the hard surface of any oils or debris, spray each side in an opposite pattern, wait the recommended tack time, then stick together, smooth, but don't forcefully press down, wait for it to bond completely. You may need to wait for a day or two to completely dry.

I freely admit I don't know the 3M products well enough to judge. Your experience is certainly good input. The only comment/concern is that this is a pretty extreme situation. Black dash material on an open top car that is basically only driven on sunny days. After being parked out in the sun for awhile, the seats and dash are almost too hot to touch. I've seen more than one dash installation that was sagging or bubbling. It's not pretty and I feel bad for the owner/builder. The Landau material I can confirm from several years experience is up to the task. If there are others that are cheaper or easier to use, great.

[BigUgly]

jmiller,

Is the stuff from NAPA actually called Trim and Headliner Adhesive? That was the only thing I could find on NAPAonline.com and it is shown in an orange spray can.

Thank You,

BigUgly

[chopthebass]

Can't get Landau products in Canada. Wurth do a 200 degree spray, but not available from Wurth Canada! FFS living here is a real PITA sometimes!
So I am back to 3M-80 I reckon.
I phoned a boat shop and they have a spray adhesive, but he didn't want to tell me the make, and had no idea of temperature range.

[6t8dart]

I looked it up, here are the maximum heat ranges for these three. As you can see, 150F is easily exceeded in any car. Black vinyl can get to 160-180F in a car in Texas, so you can see that 77 does not work so well. I believe for the F5R dash material, 80 or 90 should work best since it is foam backed, 80 is best heat resistance, but 90 is stronger, tough call, but I think I would go with 80 as the shear strength on the foam backing would be lower than the glue holding strength.

77 = 150F
80 = 300F
90 = 250F

I was able to find their guide online:

http://multimedia.3m.com/mws/media/682505O/3mtm-sprayable-adhesives.pdf

[chopthebass]

Thanks Dart. I'm not using the FFR supplied thick foam dash vinyl. I bought some Marine stuff that is UV stable and good to -40.
So with that in mind, do you still think 80 will be best choice?

I did find 3M HI PERFORMANCE CONTACT ADHESIVE 1357 , and I am trying to find out its max temp.

[billybobracing]

I used 3M Super 77 on both of my builds and haven't had any problems, I did use the FFR supplied dash covering though.
Cheers
Bill

[6t8dart]

Thanks Dart. I'm not using the FFR supplied thick foam dash vinyl. I bought some Marine stuff that is UV stable and good to -40.
So with that in mind, do you still think 80 will be best choice?

I did find 3M HI PERFORMANCE CONTACT ADHESIVE 1357 , and I am trying to find out its max temp.
If it is foam backed, then 80 works good, if not I would go with 90. 90 also holds better on the backside.

[6t8dart]

Yes, it does hold well unless the temps get extreme. Back when I worked in Michigan, we used 77 almost exclusively, but here in TX I have had to re spray a set of door panels I made with 77 and vinyl. it would be a different story in Phoenix AZ

[Dave Howard]

No issue with 3M Super 77 for my dash cover and carpet. Make sure you put enough on each piece and like contact cement, wait until its tacky before putting the pieces together. If you want something stronger try the 3M Super 90

[2FAST4U]

Didn't last my latest Roadster. Now I'm stuck redoing the damn dash

[mikeinatlanta]

77 is only good for situations where you need a very fine mist for light applications. I use it a lot for holding glass and carbon in place prior to impregnating.

6t8dart is spot on. Correct product for the job.

[chopthebass]

I spoke to 3M and 90 is strongest, but 80 has the highest 'service' temperature. I guess either should be ok in sunlight.

[Dave Howard]

I drove through Wyoming in my Cobra at +100F a couple years ago and the dash pad held up better than my wife. She's a trooper for putting up with that trip.

[ThickCobra]

6t8dart,

Thanks for the research (and experience) info.

[6t8dart]

No problem, i feel like most people here have so much experience and talent, its nice to pay back with what little I know. I was lucky to have worked on some exotic and custom interiors in my time, so i'm glad I could share.