Patching a Vinyl Canvas Cover

[Mike_L]

The NSN for the old black adhesive in the cans has been replaced by adhesive in tubes. It is 3M Scotch-Weld Nitrile High Performance Rubber and Gasket Adhesive #847. I was able to find it at a local Fastenal store. I think it is in their catalog so any store may be able to order it. I used some and it worked great on a GP small (canvas) for new patching and reinforcing some old patches. The tube states it "Bonds leather, nitril rubber, gasketing materials to a veriety of substrates." Thins with Acetone or MEK and dries to a medium brown.

Tentage repair kits were originally equipped with Adhesive, Tentage Repair. It's a nasty black contact cement. I've patched canvas and vinyl with great results however I can't find a source for the adhesive any longer.

 

[lexluther]

Thanks Mike!

 

[M35A2-AZ]

Great info guys, Thanks!!!

 

[coyotegray]

Thanks Mike..

I have been looking for something along these lines for a while.

Most places on-line wanted to sell a case. I was able to buy singles here...

Product Information | 3M Scotch-Weld 847 High Performance Nitrile Rubber and Gasket Adhesive - Reddish Brown - JeppDirect

 

[rchalmers3]

I am seeking materials and methods to repair rips, holes and failed seams on a few covers. Before experimenting with adhesives or glues, I wanted to check in with everyone to see if anyone has tried rewelding seams or new patch material using a small hobby iron?

The cost of an iron is about the same as a quart of the HH-66 bonding cement, however I believe a heat welded bond will be superior and must have some merit due to the fact it is the original assembly method.

One concern is whether it is possible to weld a failed seam a second time. Also I need a source for a small amount of matching material if anyone has a source.

Thanks,

Rick

 

[Xerofall]

I have a vinyl canvas covers on my M105a2 that has little holes were the corners are.
Does anyone know what to use to patch the holes?

I googled "FM 10-16" and downloaded a General Fabric Repair manual. Has a lot of great info.

 

[koolex11]

I have done this. If you are talking about pinholes, this is the stuff. Sportsstuff repair adhesive: $6.00.

If they are actual tears or you want to reinforce the back so it soesn't happen again, go to walmart, buy an inflatable toy for a pool (same material), cut a patch, and glue it with Sportstuff.

 

[rchalmers3]

Update:

After looking at many alternatives, I contacted Cindy Berg at Berg General Supply Home Page

Cindy explained that there is not much chance I will be able to duplicate the sewn/heat sealed original seam construction. Apparently the sewing thread used by suppliers does not hold up and the original heat sealed seams rely on the mechanical attachment provided by stitching. Cindy recommends re-gluing the failed seam and utilization of glued on reinforcing strips to strengthen the seam repair.


For a satisfactory alternative, Berg Supply sells:

Adhesive patches of 12" square
Non-adhesive material of 12"x 24" square
HH-66 glue (mentioned previously in this thread) This glue is a combination of (in the following order) Toulene, MEK and Acetone. Maybe somebody can check to see how close this combination is to PVC glue.

I bought a quart of the glue, 2 adhesive patches (for future holes and rips) and plenty of the non-adhesive material (for 6" wide seam reinforcement) Total cost shipped was $35.

I'll task myself with some repairs on a M105A2 cover in the near future. I will take photos and report the results so you guys can decide if using Berg Supply is a good idea!

Rick

 

[quickfarms]

I need to patch my M101 top too

 

[coachgeo]

Well..... this was long arse time ago... so what are folk doing now 8 years later? still searching. will see what comes up.

 

[FloridaAKM]

GL used to occasionally auction off tent repair kits in wooden crates. The crates contained needles, thread, grommets, installation tools, multiple types of materials to make the repairs with & other odds & ends. There was no glue IIRC, but you could supply that from external sources to effect the necessary repairs. This method should repair most vinyl or canvas problems if you can source this kit.

 

[tobyS]

Use HH-66 glue for vinyl and use "Tear Mender" or "Barge" for (untreated) canvas.

 

[Tinstar]

X2 on the HH-66.

I made a repair over two years ago on a vinyl cargo cover for my green M101A2.
It’s been baked in the summer sun and frozen to -6.
Driven at freeway speeds for hours.

Repair is still as good as day one.