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My front valence is broken and I would like to try replacing it myself and have never worked with fiberglass. It looks like i could cut up to the bounding strips and then grind away the remnant of the old valence down to the bonding strip. Is this a good approach? If so, what type of grinder?
When reattaching, what type of glue should i use to set the new valence panel? thanks
I would recommend using a putty knife and hammer, and removing the bonding strips, get new bonding strips with your new valance, and rebond using Lord Fusor 148.
If I understand your approach, that is also good, leaving the bonding strips intact, and grinding a "shelf" on the inboard sides of the bonding strip, and then bonding your new valance in place using Fusor.
I usually use a simple sidearm grinder with an abrasive disc (either metal or masonry) for the rough cut, and then 36 grit on a sanding block for cleanup.
Steve
PS: I would NOT install a front valance using fiberglass material and resin, definitely not factory and much extra work.
Automotive paint supply store. I ponied up for the special "caulking gun" that uses their double tube and mixing nozzles. I've used this adhesive to bond my '69 together, including fenders to surround (black glass repro bonding strips), to bond my header panel back on to the surround, and to bond on my NOS front valance, using one NOS bonding strip, and one original one as described above for one side.
Good luck,
Steve
PS: Is it just me, or does LORD FUSOR 148 sound like a superhero?
Here's another idea: Grind/sand away the paint and primer on the underside of valance directly beneath the bonding strips. You will uncover the old, original bonds. Use your hammer and putty knife to split the bond on the valance side. Leave the fender side intact and save the original bonding strips.
With the old valance out of the way, clean the old bond off the original bonding strips and bond in your new panel.