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Upholstery Adhesive BJ7

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Nivens

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After 4 years of restoration on a "frame off restoration", I have been working on the installation of the new interior. Removal of the old glue as been a PITA, but I am now on the top (hood) stripping the frame. I found that the HT-66 thinner works well to cause the release of old glue, but the HT-66 glue will cause the face of vinyl to deform from the rear of the material. The HT-66 thinner will also cause the top material surface and backing to separate. Regular Wellwood contact cement works initially well enough, but after time, the edges of joints turn loose. I talked to the upholstery shop who recommended that adhesive and they said they have found the same problem and solved it by two applications on the fabric, letting the first one completely dry before applying the second.

On the top header rail I ran into three different glues. One was black weatherstrip glue, one was yellow ( I suspect Wellwood), and another one was green. Does anyone know what the green glue is? It is tough to get off.

HH-66 Thinner.jpg
 
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I have tried mineral spirits and found it to be very slow. The professional upholstery guy recommended Naptha (what he uses) in a refillable charged bottle (shop air compressor) with a plastic bladed scraper. I used it for the majority of the floor work and trunk work, but it also needs time to work (20-30 minutes), and evaporates quickly unless it is covered with wetted rags. The HH-66 solvent is quick acting, but acts on everything it touches and evaporates quickly.
 
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My goto has always been 3M Adhesive Remover; it easily removed the original glue from my '56 BN2, and doesn't harm most paints (dunno about vinyl). Note you can't get it anymore in California, which tells you it works well. I stocked-up before the ban; it didn't used to be so expensive:

 
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