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Topcoating over an Oil Based Primer2/14/20
We sprayed cabinets & doors with Zinsser oil based primer/sealer only to learn afterward that a lacquer based primer was spec'd. I suppose they mean a primer like Clawlock or Magnasand.
Can our oil based primer accept a lacquer or conversion varnish topcoat without it wrinkling? The primer is several days into its curing cycle.
I though Zinsser only made shellac base and water based. You might want to check the MSDS.
With little knowledge of that product, I'd still assume lacquer and CV will act like a stripper to that primer. The tech sheet says it will accept any latex or oil based top coat. I don't consider lacquer or conversion varnish as oil based. The solvents are much hotter than mineral spirits. Time to experiment on scrap.
No time to experiment otherwise I would have. I posted here instead.
You could try a barrier coat, Chemcrafts aquaprime is MIGHT work here, its a WB primer that should go over the oil based primer, and it is designed to accept wb, precat, CV top coats.
ML Campbell makes a similar product, Waterborne Universal Primer. I suggested this product at work prior to posting my question here. It works and it's foolproof. We are still waiting to hear from the builder what "other" primer than the oil base that we laid down will be acceptable to them (the builder, the architect, and the customer).
“No time to experiment”
You should make the time, because the wrong decision here could cost you a ton of money & time.
There is a standard rule in finishing. Soft over hard. Never hard over soft.
It actually means flexible over brittle, never brittle over flexible.
CV and the like are brittle thin film coatings. Your oil based primer and waterborne primers are flexible base coats.
As you noted the solvents in the cv & laquer will probably be too aggressive for the oil primer as well.
I read in one of the other threads that oil primer/BM Impervo is your go to painted finish.
That’s not a typical combination in our area where are you located?