Finally found it Jan. Seems I discovered I misplaced quite a lot of stuff, or I forgot where I put it.
I bought this stuff online at some tool place. Google "3M Industrial Plastic Adhesive 4475". It is in a 5 oz tube. Says it bonds most vinyls, leather, and cloth. Does a hell of a job on plastic!
Oh, and I finally found my Permatex gear oil RTV Gasket Maker. Been looking all over for that! It was next to the 3M stuff.
Wish I could find the Chevy 12 bolt differential cover gasket I bought. I now need it.