Re: Interlux Schooner vs. Sikkens Cetol
I'd refrain from putting down 2 coats of Cetol in one day, the solvents may not escape the first coat quickly enough causing problems with the second coat. In fact 24 hours might not be enough in cool climates, I put down a second coat yesterday afternoon and in spots where the first coat was a little heavy I got some wrinkles in the second coat. I'm going to wait a week, wet sand and put one more on.
In regards to two part varnishes, I would tend to agree on their superiority, last winter I put in hardwood floors at home and used an acid curing conversion varnish called Glitsa. Awesome stuff but special safety precautions required (acid absorbing niosh cartridges, pilot lights off, etc). Two parts are in another category than standard spar varnish, but also much more finicky than single stage finishes.