Zinsser Shellac Sealer. Where there's a problem, there's a zinsser primer, sealer or coating. The primer seals stains from water, smoke and fire damage. It also stops bleeding knots and sap streaks.

Zinsser 1 Qt Clear Shellac Traditional Finish And Sealer Case Of 4 Shellac Zinsser Shellac Shellac Finish from i.pinimg.com

Shellac needs to be sprayed period. Zinsser® shellac sealer primer is ideal for all surfaces and no sanding is required. Blocks stubborn and persistent stains including water stains, marker pens and more.

Sherwin williams loxon floor sealer might be a good choice for your concrete floor, but i have no personal experience with that product.

Suitable for use on interior surfaces and spot priming of exterior surfaces. It enhances the grain on guitars, mandolins, banjos or fiddles. Sherwin williams loxon floor sealer might be a good choice for your concrete floor, but i have no personal experience with that product. Sticks to all interior surfaces without the need for sanding. Great for knots, water stains, fire and smoke damage. Zinsser® shellac sealer primer is ideal for all surfaces and no sanding is required. Known by the pro, loved by the diyer. Covers about 25 to 35 sq.