Thanks. At the place I bought it (in 1984) that was the only kind on the shelf. Later saw catalog listings for polyester resin “with wax” and “no wax.” Just didn’t want Joel to get surprised.
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On Jul 6, 2020, at 5:14 PM, gdinwiddie <sunfish@...> wrote:
On 7/6/20 5:50 PM, crispin_m_miller wrote:
At least in the days when I last used polyester (35 years ago) some polyester resin would come with a little bit of wax mixed in, which would float to the surface and seal it well enough that the catalyst would stay in and the surface would cure. BUT then if you had another layer of glass to apply, you’d have to get that wax off or you’d get no adhesion at all.
Yes, they call that "finishing resin." I've never used it. It made more sense to me to get some PVA (which is also used as a mold release) than to get two kinds of resin for the small amount of glasswork I do.
- George
