Reply To: Different shades of shellac
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Craig’s advice about reading the MSDS and TDS before using products is right on. Zinnser has many products and they vary with regard to wax so you must check each one. The seal coat does not have wax, as I recall, but I think their canned shellacs do. For me, it doesn’t matter as I’ve had bad luck with canned shellacs. I tried to polish with it and it was just too grabby even if I cut it with alcohol and even if I lubricated the polishing with mineral oil. I switched to freshly mixed shellac and the problems went away. I also put some of the canned shellac on a piece of glass and some of the fresh and the canned could easily be scraped from the glass while the fresh was extremely difficult to get off. The spray zinnser I think is wax free, but again, check.