Swing Paints

Circa 1850 DEX Marine Grade Exterior Varnish
Circa 1850 DEX Marine Grade Exterior Varnish

Circa 1850 DEX Marine Grade Exterior Varnish is a clear, tough coating that protects and beautifies all exterior wood surfaces. Renewable plant oils combined with a unique polymerized tung oil formula to provide a breathable, water repellant surface. Rain and snow cannot penetrate the coating to damage the wood. However, because moisture can escape from the wood through the varnish, the wood resists rotting and the varnish is less likely to blister or crack. Circa 1850 DEX Exterior Varnish incorporates transparent absorbers to screen out UV rays and inhibit the greying and fading effects of the sun. A superior fungicide and a mildewcide increase product performance. Circa 1850 DEX Exterior Varnish is recommended for use on all exterior wood surfaces; including window frames, doors, siding, fences and patio furniture. Its long-lasting protective finish makes it ideal for use on boats, decks and marinas.

For interior woodwork we recommend Circa 1850 Bowling Alley Polyurethane.


Circa 1850 DEX Exterior Varnish can be applied onto bare, stained or finished wood.

SURFACE PREPARATION: Sand new wood to obtain a smooth, uniform surface. For existing woodwork or furniture, clean thoroughly to remove dirt and mildew. For best results, sand the surface to remove loose varnish, sealer and wood fibres.

APPLICATION: Avoid working in direct sunlight or wind. Stir contents thoroughly prior to and during application. Do not shake. Apply without dilution. Brush on a thin coat of Circa 1850 DEX Exterior Varnish to all exposed surfaces, including cracks. Apply evenly with long strokes in the direction of the grain. Allow to dry for at least 24 hours. Lightly sand the surface, remove all dust and apply a second or third coat as above. Inspect the finish annually for cracking, abrasion, or weathering. Lightly sand and recoat problem areas to correct any deterioration and renew the finish.

DRY TIME: Allow 24 hours prior to normal use. Avoid heavy traffic for at least 72 hours. Dry time may be affected by high humidity, temperatures below 20C (68F), or application of thick coats.

COVERAGE: Up to 10m² (100ft²) per 946mL.

CLEAN-UP: Clean up using Klenk's Mineral Spirits, Klenk's Paint Thinner or Circa 1850 Pure Turpentine.

More Info
Product Code: 1815
Size: Case Pack:
250 mL (½ pt) 6
946 mL (1 qt) 6
3.78 L (1 gal) 2

Choosing the Right Finish

  • MAX COVERAGE: 9m²/L (100ft²/qt)

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