You Can Repair Fiberglass - Page 22 - Fiberglass RV

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Old 10-13-2016, 07:46 PM   #295
Senior Member
Name: JD
Trailer: Scamp
Posts: 765
This is why you have to feather the edges to have space to build up the plies and the form or whatever has to be the size of the "inside" of the section you are building up.
If you figured the wall setion was 3/16 then make it that much further inser and upu start by laying up a layer or so at a time.
You might have to lay up strips a couple of inches wide to get the shape to conform to the shape you wand.
If ypu screw up then grind it back off and start again

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Old 10-17-2016, 03:32 PM   #296
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Name: Jonathan
Trailer: Dog Grooming buses
Posts: 11
So I'm sanding it down after the weekend of rain and wind we had here and wondering if I should have a grinder with a hard wheel instead of my palm sander with 60grit paper?

I'm beginning to be concerned with my ability to deal with the multi layers and multi angles of this repair. I feel like grinding low enough to build back up will just grind through the top broken (separated) layers, I've attached a video to help explain what I'm worried about. How should I move forward?
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Old 10-17-2016, 05:43 PM   #297
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Name: K C
Trailer: 1980 18' Sunrader Motorhome and 1971 Trails West CampMite Campster
Posts: 771
I know what I would do about those big pieces that are basically sound but flopping around. Clean up the shredded edges on those pieces and the adjacent ones and then place some "basting stitches" along the edges of the big pieces and the adjacent one to it using some fine wire to hold them in the correct surface plane with the adjacent edges.

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