fiberglass over rust inhibitors

Heay guys, has anyone ever used fibergl*** over roughed up metal that has been coated with POR 15 or similar products?

Thanks!!

 

Are you really talking about polyester body filler?

 

No I'm talking about plain gl*** and cloth. More of a curiosity question

 

i have fixed rust al kinds of ways ,fibergl*** for rust repair no matter what you use with it is a temporary repair

 

Yeah, not a good way to fix anything.
Well.......actually.............there HAVE been a couple times I've done some quick and dirty work, where it was way too difficult to do the right thing, in the amount of time I had available. Usually a weird corner in a trunk, or sealing up something that was hidden, and very hard to get into, to fix right.
Don't tell anyone you got this from me! Put a coat of POR-15 on your rust area. Let sit overnight, like they tell you. The next day, when you ar supposed to put on a second coat, put on your fibergl*** matt, but instead of using poly resin, use the POR 15! The repair will be strong and waterproof.
But I definately do not recomment this for large areas, or body repair!

 

Agree with above, Best thing to do is to cut it out and renew, It will always come back....

 

I've found that POR, zero rust, rust bullet all have applications other than automotive that they were developed for. they all seem to work in rust areas but won't stick to bare clean metal. like mentioned above they will get you by in difficult areas but are not the answer to all problems. I like them for a base on ch***is that haven't been blasted or dipped.

 

I repaired a trunk floor in a 46 ford using por15 and woven fibergl*** mat. I POR 15 the cleaned floor and applied the mat while the 15 was wet. I went back and covered the mat with por15 again and It worked great. There where only pin holes in the floor and it is still in there today. I have also used body filler of por15 also with great success.

 

POR 15 sells "PowerMesh" Reinforcing Fabric, which you coat with POR_15. It is intended for repairing small holes in steel, fibergl*** and wood. POR-15 says to use it to "bridge" holes in floors and trunk pans. I've read it won't p*** import inspection if used within 4" of a body mount, when the vehicle is sold to a buyer in New Zealand.

 

fibergl*** over metal is a bad idea, firstly fibergl*** never sticks to metal for long, then when it does seperate moisture will find its way in there and the metal will rust twice as fast, fibergl*** and metal expand and contract at different rates, i worked in a plastics plant for a couple years, we made mostly pipe on winding machines, but we also made hoods for highway trucks, ventlation systems, auto parts, the metal on fibergl*** question would come up from time to time and the answer remaind the same, they do not work well together.