How cold can it be to spray lacquer?
In temperatures below 60° F the water evaporation slows and the coalescing solvent can evaporate faster than the water and the coating won’t cure properly.
Do you have to sand between coats of conversion varnish?
The pre cats and especially post catalyzed conversion varnishes begin to do their job of chemical and moisture resistance once applied. There is no golden window of time that you can stack coats on without inter-coat sanding.
How do you spray lacquer in the winter?
Shellac, a wiping varnish, and spray lacquer dry quicker than other finishes in cold weather. The best solution, though: Wait for a day that’s not too cold, too hot, or too humid. And then make sure the wood, the finish, and the air are all the same temperature before you start brushing or spraying.
What happens if you over catalyzed conversion varnish?
Simply correctly catalyze another batch and spray over the tacky, uncured finish, and, in most cases, the subsequent coat will cure.) If you add too much catalyst it can actually cause a finish to become brittle or “cold check” which potentially can be a major problem.
Does conversion varnish yellow over time?
Well, there a quite a few finish options that do not leave your with yellowing whites. Conversion Varnish – these finishes are vastly superior to lacquer. Incredibly durable with a higher solids content than lacquer, a quality “CV” finish will also be much more scratch resistant and totally non-yellowing.
At what humidity can I spray lacquer?
A general rule for spraying lacquer (or shellac) is don’t spray if the relative humidity is above 65%. A more accurate guide is don’t spray if the dew point is within 20 degrees of the ambient temperature.
Can you seal a deck in cold weather?
Don’t seal a deck below 50 degrees. You don’t want to begin the sealing process until you can safely guarantee the temperature will remain above 50 degrees for at least 48 hours.
How long does it take conversion varnish to dry?
Conversion varnishes are 85% cured within about two days of their application. Pre-cats take about 3 to 4 weeks to achieve a cure that is worthy of any kind of performance.
Can conversion varnish be buffed?
Buffing: Can be done after the finish has cured using wet/dry auto- motive sandpaper. Use GF Finishing Wax or mineral spirits as lubricant. Do NOT use water. Storage & Shelf Life: Above 50°F and below 80°F, out of direct sun- light, tightly sealed.
Is conversion varnish better than lacquer?
Conversion varnish is more durable and slightly more elastic than a lacquer. This elasticity is an advantage for wood joint expansion. Conversion Varnish is more expensive than lacquer; the material costs are higher by 30%-50%, which is substantial for larger projects.
Is conversion varnish a lacquer?
Conversion varnish, also called catalyzed conversion varnish or catalyzed varnish, is a lacquer which consists of a high-end solid two-part post-catalyzed application process.