Yes you can. You should always check for compatibility of products, but generally an epoxy coating can be top-coated.
Link to Sherwinn Williams Macro-poxy with top-coat recommendations:
http://www.paintdocs.com/webmsds/webPDF.jsp?SITEID=STORECAT&doctype=PDS&lang=E&prodno=B58W610
A lot of resins are used in varnishes. Printer's varnish uses copal resin, polyurethane varnish uses polyurethane, amber varnish contains amber.
Bleach
I would use an exterior polyurethane. It is going to hold up better and be more flexible than a varnish. Polyurethane has taken over the varnish market--it's hard to find any other kind. There is a "spar polyurethane," which is what you should use on the item in question.
Yes, you can put polyurethane paint over eggshell in latex or eggshell in oil.
Can you put stain in polyurethane to darken the color?
Yes, you can apply polyurethane over varnish for a durable finish.
No, it is not recommended to apply water-based polyurethane over varnish as they are not compatible finishes. It is best to remove the varnish before applying the water-based polyurethane for a successful finish.
A lot of resins are used in varnishes. Printer's varnish uses copal resin, polyurethane varnish uses polyurethane, amber varnish contains amber.
No, it isn't.
A lot of resins are used in varnishes. Printer's varnish uses copal resin, polyurethane varnish uses polyurethane, amber varnish contains amber.
Bleach
I would use an exterior polyurethane. It is going to hold up better and be more flexible than a varnish. Polyurethane has taken over the varnish market--it's hard to find any other kind. There is a "spar polyurethane," which is what you should use on the item in question.
Applying polyurethane over varnish can enhance the durability of the finish by providing an additional protective layer. This can help prevent scratches, stains, and other damage. In terms of appearance, polyurethane can add a glossy or satin sheen to the finish, giving it a more polished and professional look.
Yes, you can put polyurethane over epoxy for a durable finish.
Yes, you can put polyurethane paint over eggshell in latex or eggshell in oil.
Can you put stain in polyurethane to darken the color?
Varnish is not made of nylon. There are a number of different formulas for varnish, but the most popular kind is made from polyurethane.