semlin
curmudgeon
Would normal bodyshop undercoat properly cured in a paint room do a better job sealing out rust than POR-15 applied cold with a brush by yours truly?
I need to get some remedial bodywork done to fix a botched repair job on the rear quarter and wheel well that the PO forgot to mention. water is getting in through the seam between the rear PS quarter panel and the wheel well. I have a bondo crack on the outside peeking out from behind my fender flare and some surface rust inside the quarter panel in the wheel well seam and at the bottom of the quarter.
I have talked to a couple of body shops about work designed to fix the rust first and look good second. Both propose to clean and grind away the inside and outside rust and the outside bondo, seal the wheelwell up with urethane and seal tape and then use their regular undercoat on the inside of the quarter and repair and paint the outside normally (yay, fresh bondo!).
Here's the issue, both say that the specialized rust paints like por-15 won't bond and seal the rust as well as undercoat properly applied and cured in a paint shop. They also don't want to use POR -15 themselves because they have never heard of it -- the usual stubbornness.
That does not sound right to me. For a start I am not 100% sure they'll be able to get at all the rust (or that they will be that diligent). I am thinking I would rather apply the POR-15 myself, but I would lose the benefit of the temperature control on the paint curing and it also won't save me money in terms of their price.
I need to get some remedial bodywork done to fix a botched repair job on the rear quarter and wheel well that the PO forgot to mention. water is getting in through the seam between the rear PS quarter panel and the wheel well. I have a bondo crack on the outside peeking out from behind my fender flare and some surface rust inside the quarter panel in the wheel well seam and at the bottom of the quarter.
I have talked to a couple of body shops about work designed to fix the rust first and look good second. Both propose to clean and grind away the inside and outside rust and the outside bondo, seal the wheelwell up with urethane and seal tape and then use their regular undercoat on the inside of the quarter and repair and paint the outside normally (yay, fresh bondo!).
Here's the issue, both say that the specialized rust paints like por-15 won't bond and seal the rust as well as undercoat properly applied and cured in a paint shop. They also don't want to use POR -15 themselves because they have never heard of it -- the usual stubbornness.
That does not sound right to me. For a start I am not 100% sure they'll be able to get at all the rust (or that they will be that diligent). I am thinking I would rather apply the POR-15 myself, but I would lose the benefit of the temperature control on the paint curing and it also won't save me money in terms of their price.
