Polyglass Roofing Mineral Surface Granules, 50 lb Bag, Ceramic-Coated Blending Granules
Polyglass mineral surface granules are tough, dense, ceramic-coated particles used to re-surface and blend mineral-surfaced membrane products on modified bitumen and BUR repairs. The granite-like mineral is permanently pigment-coated to match Polyglass membrane colors and resists weather and UV. One 50 lb bag in the color that best matches your membrane.
Key Features:
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Ceramic-coated mineral: Composed of a granite-like mineral permanently coated with pigments to match Polyglass membrane products.
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Weather and UV resistant: Tough, dense particles that stand up to weathering and UV exposure.
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Hail and contaminant protection: Aids in the prevention of damage from hail and environmental contaminants.
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Non-porous particles: Quality particles are strong, dense and non-porous.
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Ten colors: Available in a variety of colors including Black, Gray Slate, White, Weatherwood and more.
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50 lb bag: Sold in 50 lb bags, one color per bag.
Specifications Table:
| Specification |
Details |
| Brand |
Polyglass |
| Sell unit |
1 bag, 50 lb |
| Product line |
Polyglass Granules |
| Material |
Ceramic-coated granite-like mineral granules |
| Available colors |
Black, Gray Slate, White, Weatherwood, Chestnut, Buff, Oak, Red Blend, Heather Blend, Pine Green |
| Dimensions |
50 lb bag |
| Finish / texture |
Granule surfacing, pigmented to match Polyglass membranes |
| Intended use |
Surfacing and blending mineral-surfaced membrane products on modified bitumen and BUR systems |
| Rating |
Weather and UV resistant |
| Product weight, complete sell unit |
50 lb |
Coverage & How Much You Need:
Broadcast granules into the compatible adhesive or coating at a rate that fully blankets the repaired area, sweeping them in so they embed before the coating skins over; one 50 lb bag covers roughly 50-100 sq. ft. of surface blending depending on application rate.
Fit and Compatibility:
Intended to match and complement Polyglass mineral-surfaced membrane products on BUR and modified bitumen systems. Apply into the system's designated flood coat, mastic or adhesive; not a standalone roofing surface.
Frequently Asked Questions (FAQ):
Q: What is in the bag?
A: A 50 lb bag of ceramic-coated mineral granules in a single color matched to Polyglass membranes.
Q: What are the granules for?
A: They surface and blend mineral-surfaced membrane products, commonly for repairs, patches and flood-coat surfacing.
Q: How much area does a 50 lb bag cover?
A: Coverage depends on the application rate; broadcast enough to fully blanket the embedded surface, typically 50 to 100 sq. ft. per bag.
Q: How do I choose a color?
A: Pick the granule color that most closely matches the surrounding membrane; ten colors are offered.
Q: Are they durable?
A: Yes, the particles are strong, dense, non-porous and resistant to weather, UV, hail and environmental contaminants.
Q: How do I apply them?
A: Broadcast into the wet adhesive, mastic or flood coat, then sweep lightly so granules embed before the material skins over.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Match granule color to the existing membrane before starting the repair, and buy slightly more than you think you need since lighter broadcast rates leave bare spots that age faster. Embed granules while the flood coat or mastic is still wet, sweeping across the patch in both directions for even coverage. Store bags off the ground and keep them dry to prevent clumping.
Avoid inhaling dust during broadcast; wear a dust mask, gloves and eye protection when applying roofing granules on hot work.
Stock Polyglass mineral surface granules in matched colors for clean, durable membrane repairs.
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