[locomotivebreath]

I’m gonna give a go at restoring the black plastic wheel for my 68 GTO . My question is on paint and primer . I have SEM plastic adhesion promoter and SEM gloss black paint for plastic . Should I spray the adhesion promoter 1st then the paint , or the adhesion promoter , a high build primer and paint ? How would you folks approach this ? Thanks - Paul .

[TAKerry]

What do the directions say? I have used a lot of the sem stuff and I think I used the adhesion promoter once. I have never had a problem. But I think I would use it as a base on the wheel as the first product, then primer then paint. My thought on the product was that it helped the sem stick to the product. The paint should have no problem adhering to the primer.

[OG68]

Following this. Any cracks to repair?

[locomotivebreath]

I have about 8 to fill . The ones on the rim are not bad , most don’t even go all the way through - it’s the 2 on the collar that have me worried . I haven’t read the directions yet - it’s still on its way from Amazon

[dataway]

I just did a similar job. First attempt I used a rigid filler, basically JB weld on the cracks ... just the temperature changes in the shop caused the cracks to show up again. Did it the second time with the same flexible 3M filler I used on the Endura bumper ... so far so good.
Prepped with the adhesion promotor then sprayed with the appropriate vinyl color.

[locomotivebreath]

I bought the PC 7 epoxy for the small cracks and POR 15 epoxy putty for the large ones on the collar . Im pretty well armed with dremmel attachments .

[tjs72lemans]

I did a 65 Chevelle wheel for my 55 Chevy. Filled cracks with JB Weld. Scuffed whole wheel and sprayed epoxy, sealed and painted. Thirteen years later, still looks new.

[Stuart]

I used PC7 on the cracks in the wheel on my 1966 F-100 pickup, it worked very well. That was many years ago and it's still crack free. Make sure to clean out the cracks so there they're wide enough to accept the epoxy and they're nice and clean. A hacksaw blade works pretty well for that. Once it's cured, it does require a bit of work to file and sand down so it blends with the rest of the wheel.