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Hey Tim....


EvilRufusKay

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Rufus,

If I were to do it over, I would not have cut out the vents and holes in my cowl and then welded in patch panels. The cowl is so flimsy and even carefull welding warped it, and sanding it was very difficult because it carries over the hood bulge, so it is very difficult to put pressure on it to sand the filler without bending it.

I would instead, just tack a panel under the vents and fill the vents with Duraglass......

If that fiberglass doesn't separate, you will be in good shape.....

 

Tim

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I wanted to make sure the matte would not be affected by moisture in the future. So I cleaned the cowl, used POR-15's metal prep, and then coated the surface with POR-15. After it dried for a couple of days i began laying the matte. I knoe POR-15 has mixed results. I have had varying levels of adhesion myself however, on spots that I was careful in prepping it has very good adhesion, especially on light suface rust that was prepped right. The underside of the cowl had a slight dusting of rust so I am confident it will stick well. The POR-15 does not seem to do as well on sheet metal that has nor corrosion. I take it you guys think I may have "screwed the pooch?" :?

 

Thanks for the input...

 

Rufus

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I'm thinking the POR15 is gonna seperate and allow the matting to delaminate from the sheetmetal... I'll do what Tim suggested... POR15 is a product I'll not use again... The stuff is very unpredictable... Their metalprep is the only stuff I'll buy from them.

 

Mike 8)

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I hate POR-15, one of the first products I bought when starting my project and it sucked...if you apply it to flimsy metal, it peels off!

 

One thing you can try to remove the matte is heat. I've used heat guns on the backside of metal-fiberglass bonds to remove stuff, works pretty well. Otherwise just flex the metal little by little and it might delam that way.

 

You're already using fiberglass, why not just make an entire fiberglass cowl?

Here's what I did for my hood,

http://www.v8zcar.com/s30z/aero-hood-pt1.htm

Owen

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It's almost easy, I say almost cuz you want to smooth out the vents.

Just make a straight glass copy of it, sand away or glass in the vent holes (which will remain from the original) and you're done!

 

I would fill in the wiper holes with bondo, sand down. And then grind down the backside of the vents, fill with bondo, sand down. Then lay the glass over it all.

 

Only issue I can think of is the mounting tabs that fit in the holes under the windshield, not a big issue really.

Owen

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