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All I can say is that I mixed the respective Epoxies separately very throughly, and then mixed the two together throughly.
It did take a few days to dry hard, and still has a softer consistency than pure Epoxy. If I take a screw driver an press it into it you can see a dent, but it comes out in a few minuets. If I try to scrape it off, it seams to be bonded very well and part of the preceding layer of glass, which was sanded very well.
The PPG Epoxy paint has a softer consistency, which is good in the the areas I plan on using it, in that it will be less prone to chipping, if say a pebble gets flung up into the wheel well.
As for the long term results, Don Barns used this method and is happy with the results so far.
IMG_2257.jpg
Kevin Kossi
Legacy 72%
New York, NY
On Nov 15, 2006, at 12:23 PM, Marvin Kaye wrote:
Kevin Kossi <kevin@airforcemechanical.com> wrote:
I followed Don Barns advice and sprayed the PPG epoxy white mixed with the
clear Jeffco Resin. 50% Resin was a bit too thick, 40% was perfect. It took
three days to fully harden but it came out perfect. It's really white and
really strong.
Kevin,et al,
I've seen this mentioned a couple of times here and I'm wondering whether it's a good idea to mix dissimilar epoxy systems together. The reason we mix epoxies according to a specified resin/hardener ratio is to insure that the matrix achieves a complete crosslinking of its molecules. It seems to me that mixing two different systems together could possibly change the chemical characteristics of both systems, resulting in a mixture that may or may not meet the intended cured spcifications of either product. Are there any chemists out there who would care to comment?
<Marv>
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