General Finishes Exterior 450 Stains are premium quality, pigmented wood stains designed for outdoor projects with vertical surfaces such fences, patio furniture, garage doors, entrance doors, outdoor kitchens and interior windows. These water-based outdoor wood stains are not recommended for a deck finish. Exterior 450 Stains contain U.V. absorbers to protect the finish and mildewcides to slow mold and mildew growth.
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General Finishes Extender if allowed by local regulations. GF Extender will improve flow and leveling and increase open time, which is helpful in dry climates. California Residents: Adding more than 2% of GF Extender will make the products non-compliant per SCAQMD Regulations. GF assumes no liability for the improper use of these products.
- Apply a LIBERAL amount of stain to ensure easy workability using a synthetic bristle brush, foam brush, pad applicator or short-nap roller. If not enough stain is used, the surface may dry too quickly, causing an uneven appearance. On large projects, leave wet edge between sections to prevent lap lines between sections.
- Wipe off the excess evenly with the grain using quality paper towel or shop towel. Check for missed spots and lap marks before moving to the next section. Do NOT use cotton t-shirts to wipe away stain because they will “push” the stain around and not absorb it.
- Immediately correct lap marks by rewetting the entire working area with stain and wiping off the excess.
- Pull excess stain out of corners and detail with a synthetic bristle brush.
- Let the stain dry 2+ hours when applying 1 coat in ideal conditions, 70°F/20°C, 50-70% humidity. Increase dry time if:
- Humidity is over 80%
- A second coat is applied
- Thick coats are applied
- To accelerate drying in humid conditions add General Finishes Accelerator to Exterior 450 Stain before applying and work in a space with good ventilation and air movement. If you decide to re-coat before the recommended time, test dryness.
- Before spraying, strain topcoat through a fine-mesh filter.
- Spray wet films at 3-5-mil thickness. HVLP: 1.1mm-1.3mm spray tip, medium air cap. Verify tip sizes with your equipment supplier. See our general guide for spray tip sizes. Wear a full filter respirator (NIOSH/MSHA-approved) and, if spraying in an interior space, make sure there is good ventilation. Keep your gun at a 90° angle, 6-8″ from the surface. On large, flat areas, use wet, even patterns 6-8″ wide. For narrow surfaces, reduce the fan pattern to 2-3″ wide to reduce overspray. Overlap each pass 50% for even coverage. Wipe back the excess with an absorbent cloth.
- Let the stain dry 2+ hours in ideal conditions (50-70% humidity, 70°F). Increase dry time if:
- Humidity is over 80%
- A second coat is applied
- Thick coats are applied
- To accelerate drying in humid conditions add General Finishes Accelerator to Exterior 450 Stain before applying and work in a space with good ventilation and air movement. If you decide to re-coat before the recommended time, test dryness.
Warning: Do not use water-based products with Linseed Oils or Danish Oils.
General Finishes Extender or General Finishes Accelerator, with the exception of thinned General Finishes Water Based Wood Stain.
- High Performance Satin + High Performance Gloss
- Snow White Milk Paint + Coastal Blue Milk Paint
- Amber Dye Stain + Merlot Dye Stain
The following product mixtures should NOT be stored:
- Any water based product with thinned tap water; water often contains bacteria that will adversely affect stored paint.
- Topcoat + Stain or Paint
- Milk Paint + Chalk Style Paint
- Water Based Wood Stain + Dye Stain