
GAF Matrix 203 Plastic Roof Cement 5 Gallon Pail
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GAF Matrix 203 Plastic Roof Cement 5 Gallon Pail
GAF Matrix 203 Plastic Roof Cement is a general-purpose, asbestos-free, trowel-grade sealant and repair material for all types of roof systems. This item is the 5-gallon pail (18.9 L container, 4.75 gal net contents), weighing about 45 lb. Use it for flashing details, sealing around penetrations, and repairing asphalt built-up, metal, and masonry roofs.
Key Features:
- Trowel-grade consistency: Heavy trowel-grade consistency applies easily, even in low temperatures.
- Asbestos-free: General-purpose, asbestos-free formulation for cold-applied sealing and repair.
- Superior bonding: Scientifically compounded with premium materials for superior bonding strength.
- High flexibility: Flexible enough to accommodate temperature-related expansion and contraction.
- UL and Miami-Dade: Listed as UL Classified and Miami-Dade County Approved, meeting ASTM D4586 Type I.
- Versatile repairs: Seals leaks around flashings, chimneys, vents, skylights, metal edging joints and gutters.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | GAF |
| Manufacturer model | 415O |
| Sell unit | 5 gal pail |
| Product line | MATRIX 203 Plastic Roof Cement |
| Profile / style | Trowel-grade plastic roof cement |
| Color | Black |
| Dimensions | 5-gallon (18.9 L) pail, 4.75-gallon (17.98 L) net contents |
| Material | Asphalt-based, asbestos-free formulation |
| Finish / texture | Heavy, trowel-grade consistency |
| Coverage | Application for flashing details and roofing/waterproofing repairs |
| Weight | 45 lb |
| Approvals | UL Classified; Miami-Dade County Approved; ASTM D4586 Type I |
| Intended use | Cold-applied sealant and repair material for all types of roof systems |
Fit and Compatibility:
Suitable for all types of roof systems, including sealing shingles and repairing asphalt built-up, metal, and masonry roofs. Pairs with GAF asphaltic membranes and Matrix adhesives, cements and primers; apply with a notched trowel or wide-edged putty knife per the manufacturer.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One 5-gallon pail of GAF Matrix 203 Plastic Roof Cement with 4.75 gallons (17.98 L) net contents.
Q: What can it be used for?
A: Sealing leaks and openings around flashings, chimneys, vents, skylights, joints in metal edging and gutters; sealing shingles; repairing built-up, metal and masonry roofs; constructing built-up flashings; and filling flashing pans.
Q: How is it applied?
A: It has a heavy trowel-grade consistency for cold application with a notched trowel or wide-edged putty knife, and applies easily even in low temperatures.
Q: Is it asbestos-free?
A: Yes, Matrix 203 is an asbestos-free formulation.
Q: What approvals does it carry?
A: It is listed as UL Classified, Miami-Dade County Approved, and tested to ASTM D4586 Type I.
Q: How much does the pail weigh?
A: The 5-gallon pail weighs approximately 45 lb.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Matrix 203 is the general-purpose workhorse of GAF's Matrix cement line: choose it for routine flashing and penetration repairs, and step up to Matrix 201 Premium SBS Flashing Cement when you need maximum flexibility on SBS modified bitumen systems. Tool it into flashing pans and around penetrations with a putty knife, and keep pails sealed when not in use. Its trowel-grade body handles cool-weather application better than softer cements. Always follow the GAF data sheet and local code for system-specific details.
Asphalt roof cements contain solvents: work in ventilated areas, avoid ignition sources, and follow the GAF safety data sheet and job-site fall-protection requirements.
Order the GAF Matrix 203 Plastic Roof Cement 5-gallon pail for dependable flashing and roof repairs.
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