“As for a sanding sealer, I usually just use shellac.
Many people use nothing but a coat of dewaxed shellac as a sanding sealer.
Applying sanding sealer is a vital step in finishing high-quality furniture and trim. Sanding sealer gives an added layer of protection to the wood and creates a nice smooth finish. It can be used on stained or unstained wood. Staining or leaving the wood natural is your first step in finishing.
Thinning: Mix Sanding Sealer SS-501 with Lacquer Thinner at a rate of 1:1 (equal parts). Brush: Use a good quality nylon or polyester brush. Roller: Use a Lanco® All Purpose 3/8” Nap Roller PA-566. Roller application may require special care to prevent bubbling.
A sanding sealer is not the same as a wood conditioner. Whereas a wood conditioner is a pre-stain treatment that reduces blotchiness when staining, a sanding sealer is applied only to bare wood that is not going to be stained.
The main difference between an undercoat, sealer, and primer is that primers are applied to new surfaces, while sealers are applied before a primer or as a substitute for a primer.
Sand Down the Sealer: Once the sanding sealer has dried for at least an hour, sand it with a fine-grit (240 grit and up). Use the shop vacuum to remove the sanding sealer dust, followed by clean rags to clean up any remaining dirt. After cleaning off the dust, you can paint or clearcoat the surface.
If you're applying a finish directly over sanded wood, more than one coat of sealer may be necessary to close the wood's pores completely. In this case, let the first coat of sealer dry completely before applying another coat. Very porous woods may require several coats of sealer.
A sanding sealer is simply a thinned version of a lacquer- or varnish-based finish that has been modified with zinc stearate or a resin (usually vinyl). These additives make the finish easier to sand and give it better “holdout,” which is the ability to make subsequent coats lay out smooth.
Enduro Professional Water-Base Sanding Sealer is a clear undercoat with strong adhesion properties that forms an easily sandable foundation for your project. This fast-drying pre-catalyzed sealer is designed as a basecoat for General Finishes topcoats.
But polyurethane doesn't bond so well over finishes marketed as sealers, especially over sanding sealer. This sealer is good for use under non-polyurethane varnishes because regular alkyd varnishes gum up sandpaper. So to speed production, a sanding sealer can be used for the first coat.
Two such wood sealers are polycrylic and polyurethane.
The thin viscosity makes it easy to spread and allows it to penetrate into porous woods. To start apply 1 thin coat and allow it to dry. Lightly scuff sand to remove any raised grain fibers, then apply an additional 1 to 2 coats to seal wood and provide an excellent surface that will be ready to topcoat.
Seal the wood with a coating of polyurethane, varnish, or lacquer. Finish and waterproof wood simultaneously with a stain-sealant combo.
It can be used to treat several kinds of wooden surfaces. From chairs and tables to wooden storage boxes, you can use olive oil and let it act as a varnish. Although olive oil does not have the same thickness as the varnish coating has, it can protect woods from mild dents and scratches.
We recommend no more than 1-2 coats, then finish with 1-2 coats of topcoat.
Ingestion May cause nausea, headache, dizziness and intoxication. Skin contact This product is rapidly absorbed through the skin and may cause symptoms similar to those of ingestion. Repeated exposure may cause skin dryness or cracking. Eye contact Causes serious eye damage.
Best Primers for Painting Wood Without Sanding
I like both Kilz bonding primer and Zinsser Oil Based primer for use on furniture. For this piece, I used oil based because it was what I had on hand. I traditionally like to work with water based paints for easy clean up but oil based is a great option as well!
Sealing wood is an important step in protecting it from moisture, dirt, and other damaging elements. However, it's important to apply the sealer correctly in order to get the best results.
Before painting a surface, you should apply sealers . They provide fantastic adhesion and can be a substitute for paint primers. What makes sealers different is that they make porous surfaces non-porous. It also can be used before primers to create another protective barrier.