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Western Colloid 298 Asphalt Emulsion 5 gal Black Waterproofing Roof Coating
Regular price $40.00Orders start at $399 — combine any items to reach the minimum. Learn more
Western Colloid 298 Asphalt Emulsion 5 gal Black Waterproofing Roof Coating
Western Colloid #298 Asphalt Emulsion is a water-based asphaltic bentonite clay emulsion for waterproofing and surface protection on roofs. The 5-gallon pail of black emulsion can be used alone as a protectant or with polyester and fiberglass reinforcements, and it pairs with Western Colloid #525 SilverWhite reflective coating as a primer.
Key Features:
- Water-based formula: Asphaltic bentonite clay emulsion that applies to most clean, dust- and oil-free surfaces.
- Breathable cure: The film breathes while drying and is waterproof once cured.
- Flexible dry film: Cured film resists checking and cracking and remains flexible without sagging or flowing.
- Reinforceable: Use as a waterproofing compound with polyester and/or fiberglass reinforcements.
- System component: Primary waterproofing component in Fluid Applied Reinforced Roofing and Glas-Shield roof systems.
- Easy application: Apply by roller, knotted brush, squeegee or spray to dry or damp (not wet) surfaces.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Western Colloid |
| Sell unit | 1 pail, 5 gal |
| Product line | Western Colloid 298 Asphalt Emulsion (elastomeric 298E blend available) |
| Available colors | Black |
| Available sizes | 5 gal |
| Material | Asphaltic bentonite clay emulsion, water based |
| Color / finish | Black |
| Coverage per unit | 5 gal pail |
| Thickness | Applied as a coating film; dried film remains flexible |
| Intended use | Roof surface protectant, waterproofing compound, surface flashing for cold process, Glas-Shield and mineral-surfaced built-up roofing; repairs to roofs, sheet metal, concrete, mobile homes and A/C ducts |
| Application | Roller, knotted brush, squeegee or spray equipment on dry or damp (not wet) surfaces |
Coverage & How Much You Need:
A 5-gallon pill covers according to the specified film thickness and whether reinforcement fabric is embedded; consult the manufacturer's data sheet for spread rate before sizing the job.
Fit and Compatibility:
Serves as the primary waterproofing component of Western Colloid Fluid Applied Reinforced Roofing and Glas-Shield systems and is especially suited as a base for Western Colloid #525 SilverWhite Aluminum Reflective Coating. An elastomeric 298E blend is available.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One 5-gallon pail of black #298 Asphalt Emulsion.
Q: Can it be applied to a damp roof?
A: Yes, it can be applied to dry or damp (not wet) surfaces that are clean and free of dust and oil.
Q: When does it become waterproof?
A: The film breathes while drying and becomes waterproof upon curing.
Q: What tools can I use?
A: Rollers, knotted brushes, squeegees or spray equipment all work.
Q: Can it be reinforced?
A: Yes, use it with polyester and/or fiberglass reinforcement as a waterproofing compound.
Q: Is there an elastomeric option?
A: Yes, #298 is also available in an elastomeric 298E blend.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Use #298 as your base coat whenever you plan to topcoat with #525 SilverWhite, since the manufacturer specifically pairs the two. For reflective or reinforced assemblies, embed polyester or fiberglass mat into the wet emulsion at the specified rate and let it fully cure before topcoating. Choose the 298E elastomeric blend where added flexibility is needed.
Read the SDS and use appropriate personal protection and ventilation when handling asphalt emulsions.
Order Western Colloid #298 Asphalt Emulsion in 5-gallon pails for waterproofing and roof protection.
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