Can JB Weld structural plastic adhesive be used as body fill? - General Discussion - Car Talk Community

I am repairing a cracked plastic bumper cover. Most of the work is done from the back side using JB Weld structural plastic adhesive and fiberglass drywall seam tape. There are two holes that need to be filled. I used the JB Weld structural plastic adhesive as a filler but am concerned the primer and paint won’t stick to it. I am thinking of cutting it out, backing the hole with the fiberglass tape, and filling the holes with Bondo Bumper Repair Kit, 00280, .34 fl oz. What are your thoughts?

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