IMHO, you can't.What’s the best way to repair these rear bumper guards?
NOS.....….!
You would have to fill and smooth the original piece for a master, other wise you will just be casting flawed copies, also I don't think Epoxy would hold up or look right, you would have to look toward a urethane or flexible but rigid material.Make a silicone mold, and repop with epoxy might be worth a shot!
For my front bumper inserts on my '68 Polara, I couldn't find any NOS or replacements. I ended up buying the spray Plasiti-dip. I would spray a couple of coats, let it cure and settle into the cracks, then sand. Repeat, Repeat, Repeat until most of the cracks are gone. Mine have been in place a year now. So far so good. I will see if I can find the link or pictures.
You would have to fill and smooth the original piece for a master, other wise you will just be casting flawed copies, also I don't think Epoxy would hold up or look right, you would have to look toward a urethane or flexible but rigid material.
It is a viable option, just not an easy one.
That's a reasonable option, as I said, you want the master nearly perfect otherwise your just casting equally flawed copiesWhat about spray/dip and cure, and once it’s sanded and formed, THEN mold?
It would be in proper form
I wish. Have not found any.
That's so good results in my opinion.Here is the final product after plasti-dip spray and sanding. repeat ... And before at the bottom. (Proof I posted it in a thread somewhere) Not perfect but much better.
Soaked a couple of days in ammonia, supposedly it is supposed to bring the oils in the rubber back out to soften it up.
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