I have very recently started using Dominator's graphite base prep, which melts much more easily and stays melted much longer than the wax I had been using for hot-scraping and prep (FastWax base prep), and something odd is happening that I am hoping someone can explain.
As the wax heats up on the ski, say on a second or third pass with the iron, it gets gummy in spots. Instead of a liquid, I've got goo, and instead of it being clear, it's cloudy and opaque.
Is that something happening with the wax itself? Some interaction with what was already in the base? I'm doing this after a fairly vigorous brushing with a brass brush followed by a hot scrape (and brush) with the same graphite base prep, so I'm not sure where the contaminant could be coming from. And this happens on two different pairs of skis.
I don't think it's the ptex getting too hot, even assuming that could have an effect like this (doesn't seem likely). This is happening after I've turned the iron down a good ways from the temperature I had been using for the top wax coat (Dominator HX77), which was 240--250 F.
As a side note: it would help to have it stated somewhere that the base prep not only needs but appears to REQUIRE a lower iron setting than the HX77. The iron was smoking pretty heavily until I turned it down from the temp I've been using for months for the HX77. But the packages have the same max temps printed on them.
So, any clues as to what's going on here? Thanks in advance for any hints.