This foundation coating delivers professional-grade protection with proven coverage rates and multiple formulation options to match Montana’s varied foundation conditions. The coating covers 1.5 to 2 gallons per 100 sq. ft. and comes in cold-applied liquid asphalt (solvent system), asphalt emulsion (water-based system), and rubberized asphalt emulsion formulations.
Coverage and Application Specs
The numbers matter for accurate job costing. Coverage runs 1.5 to 2 gallons per 100 sq. ft., which means a 5-gallon pail covers 250-330 square feet. That’s enough for about 25-33 linear feet of 10-foot foundation wall. Each 5-gallon pail weighs approximately 42.0 lbs — factor that into your crew’s lifting requirements.
Cold-applied liquid means no heating equipment needed. Apply it straight from the bucket with spray, brush, or roller. The cold-application feature saves setup time and eliminates propane costs during Montana’s short construction season.
| Specification | Value |
|---|---|
| Coverage | 1.5 to 2 gallons per 100 sq. ft. |
| Container Size | 5 Gallons (nominal), 4.75 Gallons (actual for model 101) |
| Weight | Approx. 42.0 lbs per 5-gal pail |
| Application Methods | Spray, Brush, Roller |
| Application Temperature | Cold-applied (no heating required) |
Formulation Options for Different Conditions
Henry offers three distinct formulations, and the differences matter for Montana applications:
Solvent-based (traditional): Surfaces must be thoroughly dry. This is your standard cold-applied liquid asphalt. Works great if you’ve got dry conditions and can wait for green concrete to cure completely. The trade-off? You’re locked out during wet weather or on fresh pours.
Asphalt emulsion (water-based): Can be damp/green surfaces. Environmentally friendly with no odor and soap/water cleanup. This formulation changes the game for Montana’s unpredictable weather. Apply it on damp foundations or green concrete without waiting for perfect conditions.
Rubberized asphalt emulsion: Waterproofing versions like 787 step up from damp-proofing to true waterproofing. The rubberized formula adds flexibility for foundations that’ll see freeze-thaw movement.
Poured concrete, CMU (Concrete Masonry Unit) block, masonry walls, existing or new (green) concrete all work with these coatings. The emulsion versions handle that morning dew or yesterday’s rain without compromising adhesion.
Real-World Performance Data
A 4.2/5 rating from 108 Home Depot reviews tells the contractor story. That’s solid performance across enough jobs to trust. “We coated our foundation in less than two hours with this product.” “We have tried many different things in the past, but this is the first one that actually worked.”
Other source ratings: Surry General Store: 4.5 stars (2 reviews), DK Hardware: 4.8 stars (1 review), Pettigrew Online: 5.0 stars (2 reviews). Smaller sample sizes, but the consistency across retailers suggests reliable performance.
This coating penetrates pores to provide a firm bond — critical for Montana’s freeze-thaw cycles. Provides a durable, weather-resistant film that stands up to weather extremes.
FAQ
Q: Can this be applied to wet concrete? A: Depends on the formulation. Solvent versions require surfaces to be thoroughly dry. Emulsion versions work on damp/green surfaces. Check the label — Henry makes both types.
Q: How much coating does a typical Montana basement need? A: At 1.5 to 2 gallons per 100 sq. ft., calculate your wall square footage and add 10% for waste. A 1,200 sq ft basement with 8-foot walls needs roughly 400 sq ft of coverage, requiring 6-8 gallons.
Q: What’s the actual volume in these pails? A: 5 Gallons (nominal), 4.75 Gallons (actual for model 101). Factor the actual volume into your coverage calculations.
Q: Does this work on block foundations? A: Yes. Compatible with poured concrete, CMU block, masonry walls, and both existing or new concrete.
Q: What about warranty coverage? A: Not explicitly detailed in the provided search results; typical for these products to be subject to manufacturer limited warranty upon request. Contact Henry directly for specific warranty terms.
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