Old Masters polyurethane delivers 500 square feet per gallon coverage — significantly better spread rate than most consumer-grade finishes. The self-leveling formula and 3-hour touch dry time make this a contractor’s polyurethane. Not because of the label. Because of the numbers.
The finish resists abrasion, marring, chipping, alcohol, and water — exactly what Montana’s high-traffic commercial spaces demand. Restaurant floors, retail counters, bar tops — anywhere durability matters more than marketing claims. At 72 hours, it’s ready for heavy traffic. Most polyurethanes claim “walkable” at that point. This one means it.
Coverage and Application Performance
The coverage advantage changes project economics. 500 square feet per gallon means fewer gallons per job and less material handling. Compare that to typical retail polyurethanes pushing 350-400 square feet — you’re looking at 25% fewer gallons on a 2,000 square foot restaurant floor.
The self-leveling property eliminates most brush marks without excessive working. Apply with a high-quality bristle brush, flat pad, or lambswool applicator. The formula flows out evenly, reducing the skill gap between experienced finishers and newer crew members. Touch dry in 3 hours, recoat in 6 to 8 hours (overnight preferred) — fast enough to maintain momentum on tight schedules.
| Specification | Value |
|---|---|
| Coverage | 500 sq ft per gallon |
| Touch Dry | 3 hours |
| Recoat Time | 6-8 hours (overnight preferred) |
| Light Use | 24 hours |
| Heavy Traffic | 72 hours |
| Full Cure | 7 days |
Contractors highlight its good adhesion when properly applied and its smooth drying process. Users find its consistency smooth and it dries quickly enough to minimize dust adhesion — critical when you’re finishing in active commercial spaces where dust control isn’t perfect.
Durability and Commercial Performance
The product delivers durable protection from abrasion, marring, chipping, alcohol, and water. Those aren’t random test results. That’s a bar top specification list. Alcohol resistance matters when you’re finishing restaurant surfaces. Water resistance matters everywhere in Montana where melting snow tracks indoors five months a year.
Excellent protection against abrasion, marring, chipping, water, and alcohol, making it suitable for high-traffic areas like floors, cabinets, and tabletops. The 72-hour heavy traffic window isn’t conservative sandbagging — that’s when the film develops enough hardness to handle commercial foot traffic.
Temperature flexibility works for Montana’s reality. Apply when air and surface temperatures are between 60°F and 90°F. That covers most interior commercial spaces, even those with marginal heating during shoulder seasons. Minimum of two coats recommended; additional coats for high-wear areas. Don’t try to save money with single-coat coverage on commercial projects. The wear patterns will show within months.
VOC Reality and Safety Requirements
Maximum 450 g/L VOC content puts this in the traditional oil-based category. Regional formulations may be lower (e.g., 350 g/L) — check your specific can for compliance. Montana doesn’t restrict interior VOC content like California, but commercial spaces still need ventilation during application.
The odor associated with oil-based products may require adequate ventilation during application. Plan for it. Open windows, run fans, schedule around occupancy. Rags and waste must be stored in water-filled metal containers due to combustion risk. That’s not legal boilerplate — oil-based polyurethane rags can spontaneously combust. Every contractor has a story about the crew that learned this the hard way.
Clean up with mineral spirits or paint thinner. Do not thin; use as packaged. The formulation is balanced for the stated coverage and leveling properties. Thinning saves nothing and compromises durability.
Frequently Asked Questions
Q: How does Old Masters compare to water-based polyurethane for commercial projects?
Oil-based Old Masters provides a richer, amber tone and higher durability but has higher VOCs and longer dry times than water-based options. The amber tone enhances most wood species. If you need water-white clarity on maple or ash, go water-based. For everything else, the durability advantage of oil-based wins in commercial applications.
Q: What’s the actual coverage on rough or previously finished surfaces?
Coverage is approximately 500 sq ft per gallon but varies by wood condition and application method. First coat on raw wood always drinks more. Previously finished surfaces in good condition might actually hit that 500 square foot target. Rough-sawn or weathered wood — budget for 350-400 square feet.
Q: Can this go over existing finishes?
Can be applied over most old finishes if properly cleaned and sanded. Lightly sand between coats with 220 grit sandpaper; remove dust with a tack rag. The key word is “properly” — that means thorough cleaning, complete deglossing, and no contamination. Compatible with Old Masters Oil-Based Sanding Sealer; do not use over stearated sealers.
Q: What about outdoor use or exterior doors?
Most polyurethanes, including Old Masters, are formulated for indoor environments and can degrade when exposed to UV rays, moisture, and temperature fluctuations, leading to cracking, peeling, and potential water damage. Use spar varnish or marine finishes for exterior applications. This is an interior product.
Q: How critical is the temperature range during application?
Apply when air and surface temperatures are between 60°F and 90°F. Below 60°F, the finish gets thick and won’t level properly. Above 90°F, it flashes too fast and shows brush marks. Montana’s short construction season means you might push these limits — add slower-evaporating thinner if you must work in marginal conditions, but expect compromised results.
Ready to Get Started?
Our paint & finish specialists can help you find the right Old Masters products for your project.
More from Old Masters
Explore All Old Masters Products
We carry Old Masters across all 11 Montana and Idaho stores.
