I have seen antifreeze work itself under 5 minute epoxy on lexan or
acrylic (not sure).
It took months to creep 5mm, but keep an eye on this fix.
ST
On Mon, Sep 15, 2014 at 4:21 AM, edbreya@... [TekScopes]
<TekScopes@...> wrote:
Yes, it runs fully pressurized as an integral part of the cooling system loop. The coolant filler/relief cap is on it, rather than on the radiator.
The deed is done. I used the kit NAPA #765-1544, which is basically 1 oz of epoxy, a few square inches of woven fiberglass material, a piece of sandpaper, and an applicator brush. I decided to goop up the whole concave wall section - there was also a stress crack about 2 cm long farther up the side of the tank, in line with the main crack. I figured maybe that whole section was deforming too much under working conditions. It came out beautifully, with nice layers of epoxy with embedded glass, about 1-2 mm thick all the way up.
This was a pretty expensive kit - about $21 - but if it works, then OK. From the appearance, viscosity, and smell, it seemed like regular "5-minute" curing mix, but a little heavier due to more filler materials. I'm sure the glass layer will help a lot too. So, if it bonded to the polyamide OK, then it should be "permanent" enough, but if not, then it will blister off eventually from the pressure.
Ed
------------------------------------
Posted by: edbreya@...
------------------------------------
------------------------------------
Yahoo Groups Links
