Follow the instructions on the epoxy.
How to fiberglass over sheet metal.
How to bond fiberglass to metal.
One thing to keep in mind.
A metal mesh works well too provided fiberglass is applied to both sides.
Lay the fiberglass.
Gashog oct 5 2006 share post 9.
Rough up the metal surface with a piece of coarse grit sandpaper.
If bonding fiberglass gelcoat rough that up too.
Having done that apply metal conditioner with a clean cloth and use a separate cloth to wipe it off before it dries.
Roughing up the.
How to fiberglass over metal step 1.
Thoroughly clean the area until the rag no.
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Clean the metal with some solvent and grind with a disc grinder to get all of the rust of and to roughen the surface then glass it using epoxy resin for a permanent bond.
The additional advantage of these techniques is added strength over a long period of time.
Grind the area of the metal that will be getting fiberglass applied to it using an air grinder.
You need to use epoxy resin.
This will prepare the surface of the metal for rust repair.
Mixing and applying the fiberglass 1.
If you try to apply it over regular 80 grit scratches chances are it will pop right back off within a few months.
The way gm did it in the old corvettes was to rivet a fiberglass bonding strip to the metal and then adhesively bond the fiberglass to the bonding strip.
The most common type of resin is polyester which sticks fine to itself and to the glass but doesn t stick very well to metal.
Https amzn to 3eeffvf fiberglass roller.
Mix up a batch of the epoxy large enough to bond the fiberglass to the metal.
I use a 36 60 grit scratch or heavier when bonding glass to metal or wood.
A large can or metal bowl will work but it should be of.
In a kit you will have a pre measured can or bucket of resin.
Usa chop strand matting.
May be a little old fashioned but depending what you are doing it still may be the way to go.
To apply the fiberglass reinforced filler place the needed amount of fiberglass to a mixing board.
Amazon links to products featured in this video.
Measure an appropriate amount of resin in a metal container.