And they suggest apply the body filler over the primer. How long does por15 last? Once the surface is cracked I have seen the rust grow back under the surface. If you keep checking on it you will see a fissure, then a crank, then chunks fall off.
As long as you scrape off the damaged area and recoat your fine. Can you stop rust by painting over it? Yes, it does. Rust is weak, so any paint over it will hold weak. As long as the paint film over rusty part is broken, water and atmosphere contacts the metal and start to erode it, resulting in more paint film be destroyed. So it is critical to remove all rust from the surface being painted. Does por 15 stop rust? POR is a rust-preventive paint designed for application directly on rusted or seasoned metal surfaces.
It dries to a rock-hard, non-porous finish that won't chip, crack, or peel, and it prevents rust from re-occurring by protecting metal from further exposure to moisture. Is por 15 the best? Epoxy is the best choice for bare metal because it has some flexibility to it. POR 15 tends to cure hard and brittle which can result in hairline cracks over time which will allow moisture to reach the metal. How do you repair rust holes in fiberglass? To apply the cloth patch, first apply a thin coat of filler on the repair area and on a piece of plastic cut to the size of the rust hole.
Wet the surface of the ground metal with the resin mixture using a 4-inch felt roller. Apply the first layer of mat to the surface and saturate it with resin using the felt roller. Remove any air bubbles and flatten the mat with an air roller. Add the remaining layers of mat following the same process for each layer.
Let the fiberglass harden. Put on a respirator and sand the fiberglass smooth using an electric sander with grit sandpaper. Jason Kurz has been a published writer for eHow. Step 1 Grind the area of the metal that will be getting fiberglass applied to it using an air grinder.
Step 2 Wipe the ground area of the metal clean with a rag and acetone. Probably all that held her together. Yes, you can coat aluminum with epoxy. I have repaired aluminum riveted boats with fiberglass laid in epoxy. You must log in or sign up to reply here. Show Ignored Content. Similar Threads. Replies: 2 Views: Replies: 44 Views: 1, Dealing with Ice on a fiberglass boat comfisherman , Jun 25, , in forum: Boat Design.
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