Quote:
Originally Posted by jake12tech
It really depends also if you have had metal repair done. POR15 isn't just enough in most cases. Maybe for real light surface rust.
If you cut out the metal and don't treat the metal properly (reason why metal repair doesn't work 90% of the time) before welding new metal it will only come back again like cancer. All of it has to be cut and fixed and treated properly. POR15 is simply a bandaid in most cases. Especially against Canadian winters.
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After doing welded rust repairs on door sills, how would you properly treat the side of the welds that are inside the rockers that you can't access?
Re POR, I have a repair on my 350SL trunk floor that I did with POR and glass cloth in 1990. Still solid and could be mistaken for metal. But I agree that POR is not a magic potion. It needs to be used properly as does metal in weld repairs.
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Graham
85 300D
,72 350SL, 98 E320, Outback 2.5