Andrew,
My spars were coated with something, I presume it was a release
agent, nothing would stick to it.
I tried detergent and water, and tri sodium phospate, neither of
which did much.
Sanding just worked the contaminant into the spars.
Eventually I tried Comet kitchen cleaner, and the foaming/scouring
action plus lots of water
cleaned them well.
After this a friend from the auto industry gave me a bottle of
"Polycracker" prep wash.
Sprayed on wiped off and rinsed, the stuff was brilliant at removing
whatever was on the spars.
Dave
On 11-Jul-08, at 12:23 PM, Andrew Sarangan wrote:
> <asarangan@gmail.com>
>
> I am not sure what the PVA release agent looks like. My cockpit module
> has very thick glossy stuff all over the the underside. It looks more
> like excessive epoxy. But I am concerned if this might be the PVA
> release agent. If so, it's not going to come off with any amount of
> washing in soap and water. Some heavy duty sanding would be in order.
> Does anyone have some advice on this?
> Thanks!
>
>
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