RE: Newbie polyurethane mistake

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Daniel A. Kline" <daniel_kline@xxxxxxxxxxx>

Is this water-based polyurethane?
If it is, just peel the whole polyurethane layer off and let your coil
dry.
Then apply non-water-based polyurethane.

I used water-based once, and the entire layer
peeled off (with help) just like a giant sheet of "hardened" Elmer's
glue.

Dan K.


> -----Original Message-----
> From: Tesla list [mailto:tesla@xxxxxxxxxx]
> Sent: Monday, June 27, 2005 11:58 PM
> To: tesla@xxxxxxxxxx
> Subject: Newbie polyurethane mistake
>
>
> Original poster: "Coyle, Thomas M." <tcoyle@xxxxxxxxxxxxxxx>
>
> Having never worked with polyurethane before, I made what I'm
> sure is a
> super-newbie mistake, and I'm wondering if there's any way to rectify
> it.
>
> I coated my secondary with about 7 coats of polyurethane (until I
> couldn't feel the ridges of the turns). Unfortunately, I
> didn't let each
> coat fully dry before putting the next one down. Now, the outside is
> rock-solid, but if you press with a finger, the coating will
> buckle and
> peel. The bottom layers are still gelatinous, while the top is solid.
> It's been sitting for 6 weeks while I work on other things, and that
> inside just won't dry (if I pick off some of the top, it's still moist
> below). This would seem to be a great testament to how wonderful
> polyurethane is at sealing out (or in) moisture.
>
> Is there any way to salvage this secondary? Can poly be baked
> to finish
> curing? Will the gelatinous poly cause flashovers or some other
> nastiness? Has anyone ever made this mistake before (say yes - it'll
> make me feel better)?
>
> Thanks,
>
> Tom
>
>
>