I agree. I haven't found a good quality seam sealer yet. This Por-15 stuff is more than paint, it becomes thick and hard as steel. My plan was to seal it all in with the POR-15, then recover with undercoat. On the underside of the car however, I will POR-15 all welds, then seam seal then undercoat. Im planning on doing the whole underside, that's why Im stalling on buying a seam sealer - I want good stuff.jimmyspeed wrote:nice repairs, almost identical too what i had to do, one thing i would recommend doing is covering the welds with a seam sealer or polyurethane sealant
I wouldn't say its essential on the inside, especially with the thick paint but on the outside 100% to stop the stone chips and any pinholes you might have left between the welds
Another good product is weld through primer, as its very hard to guarantee a full covering of paint on the inner sills, in the uk we have a upol version but i have seen some people use a high zinc spray can - it doesn't work perfect buts a good start
Mike, I tried to keep the look identical. It's not critical because none of this shows as its covered by the plastic liner in the wheel well. My main goal was solid welds. The bottom of the sill was pretty rusted out and I used that metal bar because I had it. I didn't use weld through primer as, well, I didn't know it existed! I was told to always weld on CLEAN bare metal. This prevents contaminants in your welds which will make them weak and quicker to rust out. I also snip my mig wire after every weld, which may be extreme but stops you from welding with an oxidized tip of welding wire.Speak-slower wrote:Looking good there mate. I'm getting ready to weld up my IS. The earlier post where you did the jacking point is that what the end of the sill should look like? I need some reference to make sure it's right on mine.
I've primed all my bare metal with etch weld primer. Which is a zinc based weld through primer is that what you've done? I've got seam sealer for the welds but what's the benefit of the por-15 you've used? Cheers bud loving what you've done so far. - mike
The benefit of POR-15 is, as far my research has found, that if you put it on properly (use the POR-15 degreaser which is AMAZING, then the POR-15 metal prep then the POR-15) those parts will never rust again. Ever. It is uber-resistant to everything. It ain't cheap though. But I don't have TOO much rust (!) to deal with so Im happy....Hope this helps..
