A general rule of thumb is "clean, dry, and dull" for coating over an existing finish. The clean and dry is self explanatory, and the dull can be achieved by sanding with a suitable abrasive.
A more suitable alternative to recoating existing lacquer would be a polymerized Tung Oil like Waterlox. Waterlox will give a "rejuvenating" sheen, excellent moisture resistance, and much easier future maintenance than either a lacquer or a polyurethane.
Yes, you can apply polyurethane over epoxy for a durable finish.
Yes, you can apply polyurethane over varnish for a durable finish.
Yes, you can apply polyurethane over paint to provide a protective finish.
To achieve a durable finish by using polyurethane over linseed oil, first apply a coat of linseed oil to the surface and allow it to fully dry. Then, apply multiple coats of polyurethane, allowing each coat to dry completely before applying the next one. The polyurethane will provide a protective layer over the linseed oil, enhancing durability and longevity of the finish.
Yes, you can apply polyurethane over Danish oil for a protective finish.
Yes, you can apply polyurethane over stain to achieve a smooth and durable finish.
Yes, you can apply polyurethane over stain to achieve a smooth and durable finish.
Yes, you can apply polyurethane over epoxy as a protective finish.
No, it is not recommended to apply epoxy over polyurethane for a durable and long-lasting finish.
No, it is not recommended to apply polyurethane over boiled linseed oil for a protective finish.
Yes, you can apply polyurethane over paint to create a durable finish.
Yes, polyurethane can be applied over paint to provide a protective finish.