Testing different primers on polyurethane/varnish

Testing different types and brands of primer directly on to unsanded polyurethane.
In the past, hard, gloss polyurethane was always one of the more difficult surfaces to get paint to stick to.
it seems primers have come a long way. I still recommend sanding but the results were interesting to see. I have no bias towards any brand. In fact zinsser products performed both the best and the worst. I had expected cover stain to be one of the best and it performed poorly. I had used a shellac primer on vinyl wrapped doors before and found it didn't stick well so I was surprised by how well BIN primer stuck to unsanded polyurethane. I did this test for my own knowledge as I sell these paints and I am returning to the painting industry.

Тэги:

#zinsser #primer #sealer #undercoat #painting #spraying #airless #prep #repaint

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