Semi-Solid Wood Stain & Sealer
EXPERT™ Semi-Solid Wood Stain & Sealers are an excellent choice for Western Red Cedar, Treated Pine, and a variety of other wood types. These stains are ideal for revitalizing aged or weathered wood, helping to conceal minor flaws while enhancing its overall look. The rich, opaque pigmentation in our Semi-Solid formula offers strong UV protection, repels water, and holds up against tough weather—maintaining its colour and strength for years.
The exclusive blend acts as a durable shield, guarding against warping, cracking, and twisting over time. It is formulated with conditioning oils that deeply penetrate the wood; this stain nourishes from the inside out. And thanks to our ultra-low VOC content, it’s a healthier option for both your family and the environment—unlike high-VOC products that can release harmful toxins into your outdoor space for months.
Why Choose EXPERT™?
This high-solids, oil-based stain formula is trusted by contractors and DIYers alike. It's simple to apply, non-film forming, and designed to avoid streaks, runs, or lap marks. Whether you’re working with new lumber or wood that’s already seen some seasons, this stain delivers a smooth, even finish every time.
Recommended for:
Fences, pergolas, gazebos, siding, and other exterior vertical wood surfaces. Suitable for new, aged, or previously stained wood (especially those treated with oil-based products).
Deep Penetrating Protection for Outdoor Surfaces
Perfect for decks, fences, siding, shakes, and log homes, our Semi-Solid stains are specially crafted for older or more weathered wood.
Note: Semi-solid stains are designed to soak into the surface. If using on new decking, be sure to wipe off excess once the stain has absorbed. We do not recommend using the Black shade on deck floors.
Know the Facts
Modern regulations require wood stains to meet strict VOC (volatile organic compound) limits due to the health and environmental risks associated with them. VOCs can contribute to smog, respiratory issues, dizziness, and even long-term health problems like cancer. Many leading brands barely meet these standards, but EXPERT™ goes beyond them.
Breathe Easy with Ultra-Low VOC
With EXPERT™ Stain & Seal, you can confidently protect your outdoor wood projects and surrounding environment. The ultra-low VOC formula ensures lower emissions during and after application, delivering lasting beauty and peace of mind for up to three years.
Crafted by professionals, for professionals—and for homeowners who expect nothing less than top-tier results.
Packaging & Specs
| Size |
Pails per Pallet |
Weight per Pail |
Pallet Dimensions |
| 1 Gallon |
120 |
8 lbs. |
42” W x 48” D x 54” H |
| 5 Gallon |
48 |
40 lbs. |
42” W x 48” D x 66” H |
Frequently Asked Questions
What wood types can the semi-solid stain sealer be used on?
Works on all exterior wood surfaces including cedar, pressure-treated lumber, pine, spruce, and redwood. Ideal for fence posts, decking, railings, or pergolas—not recommended for interior floors.
How many square feet does one gallon cover?
One gallon covers 250–350 sq ft on smooth surfaces (like planed cedar) or 200–250 sq ft on rough wood (like fence slats). Always do a test patch to confirm.
How long does the semi-solid stain take to dry?
Touch-dry in 1–2 hours; recoat in 4–6 hours; full cure in 24–48 hours. Avoid rain for 24 hours after application.
How do I apply the semi-solid wood stain sealer?
Clean wood first (power wash or scrub with TSP). Apply with a brush, roller, or sprayer in thin coats. Back-brush for even penetration. Two coats recommended for best protection.
Is the semi-solid stain sealer suitable for horizontal surfaces like decks?
Yes—but we would recommend a solid stain for high-traffic decks. Semi-solid provides good UV/rust protection but less slip resistance.
What is the warranty on the semi-solid stain sealer? 20-year warranty against peeling, cracking, and fading on properly prepared wood. Covers exterior exposure but not mildew from poor ventilation.
How is shipping handled for the semi-solid stain sealer in Canada? Ground shipping via BarrierBoss system; calculated at checkout. Free on orders over $2,000. Gallons ship in 3–5 business days.
Frequently Asked Questions
What wood types can the semi-solid stain sealer be used on?
Works on all exterior wood including cedar, pressure-treated lumber, pine, spruce, and redwood. Ideal for fences, decks, railings, or pergolas—not for interior floors.
How many square feet does one gallon cover?
One gallon covers 250–350 sq ft on smooth wood or 200–250 sq ft on rough surfaces. Always do a test patch.
How long does the semi-solid stain take to dry?
Touch-dry in 1–2 hours; recoat in 4–6 hours; fully cured in 24–48 hours. Keep dry for 24 hours after application.
How do I apply the semi-solid wood stain sealer?
Clean wood first (power wash or TSP). Brush, roll, or spray in thin coats and back-brush for even penetration. Two coats recommended.
Is the semi-solid stain sealer suitable for horizontal surfaces like decks?
Yes—perfect for decks and high-traffic areas. It penetrates deep for water repellency and UV protection while remaining breathable.
How is shipping handled for the semi-solid stain sealer in Canada?
Ground shipping via BarrierBoss; calculated at checkout. Free on orders over $2,000.
Can I use the semi-solid stain on freshly pressure-treated wood?
Wait 4–6 weeks after treatment for the wood to dry fully. Test moisture content (under 15 %) before staining for best adhesion.
Will the semi-solid stain prevent mould and mildew growth?
It contains mildew-resistant additives and repels water, which greatly reduces mould/mildew risk. Proper ventilation and occasional cleaning are still recommended in shaded or high-humidity areas.
