Product details
EPDM Roof Rubber Primer – Flexrock FX-PRIMER Adhesion Booster
Flexrock FX-PRIMER EPDM is a professional-grade, EPDM roof rubber primer designed to prepare black rubber roofing membranes for coating application. This low-viscosity, sprayable liquid improves adhesion and ensures a clean, properly conditioned surface before applying any Flexrock roof coating system.
Formulated for use specifically on black EPDM membranes, FX-PRIMER EPDM pre-treats the substrate to remove release agents, dirt, and other contaminants that may interfere with coating performance. It is nonflammable, nonhazardous, and minimizes overspray, making it a safe and efficient option for roofing professionals.
Key Features & Benefits
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Boosts adhesion to black EPDM rubber roofing
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Nonflammable and nonhazardous formulation
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Low-viscosity, sprayable liquid for fast coverage
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Compatible with all Flexrock roof coatings
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Safe for workers with minimal overspray
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Natural pH – no harsh chemical reaction
✅ Application Guidelines
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Apply FX-PRIMER EPDM using a Hudson-type agricultural, pressure, or airless sprayer.
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Maintain a 3–4 ft arc spray pattern.
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Let it stand for 15 minutes.
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Power wash EPDM with 2000–3500 psi pressure.
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Rinse thoroughly until water is clear and bubble-free.
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Once dry, coating can begin.
Mix primer well before use. Dry/recoat time varies by humidity and temperature.
📊 Technical Specifications
| Attribute | Value |
|---|---|
| Product Type | EPDM Roof Primer |
| Form | Sprayable liquid, low viscosity |
| Compatibility | Black EPDM membranes |
| Application Rate | 500 sq. ft./gallon |
| Bucket Size | (Specify, if available) |
| Dry/Recoat Time | Varies with temperature & humidity |
| Safety | Nonflammable, Nonhazardous |
📘 FAQs
Q: Can FX-PRIMER EPDM be used on white EPDM?
A: No, it’s specifically designed for black EPDM rubber membranes.
Q: Do I need a primer before coating an EPDM roof?
A: Yes. FX-PRIMER ensures the surface is clean and primed for optimal coating adhesion.
Q: Is this primer compatible with silicone-based coatings?
A: It is optimized for use with Flexrock’s acrylic and urethane roof coatings. For silicone, consult a Flexrock technical representative.
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