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White Conversion Varnish11/25/15
We are using Chemcraft Aquaprine a water based primer on poplar and than applying one coat of white conversion varnish. Parts are than pinstriped with a solvent glaze and top coated with a pre-cat lacquer. No sanding is done before applying lacquer. Amazing results with no failures.
So you mean to say you purposely went against manufacturer's recommendations, voided any possibly warranty implied, and created a finish that looks great.
Good luck getting tech support if, and when, u have a failure.
I'll stick to systems that are designed to work with each other.
Thanks for the info Dave.
Waterborne primers and paints have been used in the automotive industry for years and do a great job. The topcoats are solvent based. So, it's not uncommon to combine waterborne coatings with solvent based coatings.
The data sheet for this primer (attached) says it can be topcoated with waterborn, pre-cat lacquer, or post-cat lacquer, conversion varnish, or 2K PU.
The data sheet also says that you have to sand between coats of primer and before topcoating. Failure to sand can cause adhesion failure leading to delamination and peeling. If you skip the sanding step and do a cross-hatch adhesion test it may pass for a time and then delaminate later. I would not risk skipping the sanding step.
Click the link below to download the file included with this post.
It's not uncommon now for these types of systems.Finish manufacture's developed these types of finishes for companies that provide pre-primed products so they can be finished with any type of finish the customer want's without problems. I believe Chemcraft developed AquaPrime for a large window manufacturer.
wow. you really do learn something new every day. its interesting to know that these products exist, however, for my own personal peace of mind i will definitely steer clear.
I have used Aqua Prime in the past with several different solvent top coats,worked well with no problems.I now use a post cat primer because I find it more convenient than switching back and forth from water to solvent since we use the same gun for all of our pigmented finishes.