Rust-Oleum Spray Varnish Spray is a protective coating which offers protection to your exterior wood from sun, weather, water, sea spray and more. This ultimate spar urethane spray is an oil-based formula which increases the life of exterior wood for many years. This aerosol spray is ideal to use for outdoor furniture, doors, window trim etc. As per the technical data sheet from the manufacturer, its dry time is 30 minutes to touch.
Features of Ultimate Spar Varnish Spray
- Aerosol spray is convenient to use.
- Exception Ultra Violet and weather resistance.
- Fast drying.
- Efficient coverage.
- Durable coating increase exterior wood’s life.
NOTE: This product is not suggested for high traffic areas, siding or rough-swan surfaces.
How to Apply Ultimate Spar Urethane Spray?
Unfinished Surface Preparation: Sand using 150-220 grit sandpaper and remove all sanding dust using a vacuum or a tack cloth. If a filler or putty is used, make sure that it does not contain wax.
Refurbishing existing coating: Existing finished wood may be refurbished without complete removal of the previous coating. The surface must be free from wax, silicones, oils and other contaminants, thoroughly cleaned and abraded before applying Ultimate Polyurethane.
Stained or Painted Wood: Follow manufacturer’s direction for application of stain or paint. Make certain surface is thoroughly dry before applying Rust-Oleum Ultimate Spar Varnish. Refer to manufacturer’s label for dry times. For best results, use Rust-Oleum Ultimate Wood Stains when a stained surface is desired.
Apply outdoors. Use adequate ventilation at all times. Do not apply in direct sunlight. Apply at temperatures between 55-90°F (13-32°C) and the relative humidity is below 85%. Shake can vigorously before and after use. Use a drop cloth or newspapers to protect surrounding areas from spray mist. Spray light mist coats, holding can 10-12 inches from surface. Move can with a smooth sweeping motion to avoid runs and sags. Several light coats give a better finish than one heavy coat. For hard to reach areas turn the can upside down to spray. Re-coat only when previous coats have dried clear and feel hard. (No longer feels tacky). If any coat has dried more than 24 hours, lightly sand before re-coating. For maximum durability, a minimum of 3 coats is recommended.
Properties of Rust-Oleum Ultimate Spar Urethane Spray
|Resin Type||Urethane Alkyd Polymer|
|Solvents||Acetone, Mineral Spirits|
|Recommended Dry Film
Thickness (DFT) Per Coat
|1.0-1.5 mils (25-37.5µ)|
at Recommended DFT
(assumes 15% material loss)
|Dry Times at 70-80°F (21-27°C)
and 50% Relative Humidity
|1 hour to touch, 2 hour to re-coat and fully cure in 24 hours|
|Shelf Life||5 Years|
|Flash Point||-141°F (-96°C)|
|Safety Information||For additional information, see MSDS|
|Technical Data Sheet||Click here|