Wood Staining Products

Cabot Stains Spar Varnish

Spar Varnish

Available Finishes
(Click to download product details)

Quick Facts

  • Oil-based
  • Clear durable finish
  • Satin, semi-gloss, gloss
  • Interior/Exterior

Safety Info

Related Products

Pre-Stain Wood Conditioner


Quick Dry Sanding Sealer


Oil Wood Stain



Cabot Spar Varnish provides maximum protection and long-lasting beauty to wood, metal and fiberglass surfaces. Dries hard overnight.


One gallon covers up to 300-400 sq. ft. (28-37 m²) depending upon surface porosity. Do not thin.One quart covers up to 75-100 sq. ft. (7-9.3 m²) depending upon surface porosity. Do not thin.

Preparing Your Surfaces

General: Clean and dry surface thoroughly, removing all dirt, dust, wax and wood marks. Remove gloss with sandpaper or liquid gloss remover. Do not apply over lacquer or shellac.
New Wood: Smooth wood lightly with sandpaper. Stain, if desired. Allow stain to dry at least 24-48 hours before applying finish. Sand lightly again and remove sanding dust before finishing.
Painted or Varnished Wood: Remove all paint and varnish in poor condition with sandpaper or paint and varnish remover following manufacturer's instructions and safety precautions. Then, follow new wood instructions. Varnish in good condition merely needs to be clean and have the gloss dulled.


DO NOT SHAKE! Stir well before and occasionally during use. Before applying the finish to the entire surface, check effect by testing on an extra piece of the same wood or by applying to a hidden part of the object. Apply a uniform, thin coat using a high quality, clean polyester or natural bristle brush. Brush in even strokes in the direction of the wood grain. Use care on vertical surfaces to avoid runs. Allow to dry overnight and sand lightly. Remove all sanding dust before applying each individual coat. For best results, apply at least 2-4 coats.

Cleanup and Disposal

Clean brushes and equipment with mineral spirits. Dispose of empty cans or unused portion in accordance with local, state and federal regulations. Close container when not in use. Soak oily rags, lambswool, steel wool, cloths or any other material in water after use to avoid spontaneous combustion. Danger: Rags, steel wood or waste soaked with this product may spontaneously catch fire if improperly discarded. Immediately after each use, place rags, steel wool or waste in a sealed, water-filled metal container. Dispose of according to local regulations.

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