The GAF MATRIX 101 Premium SBS Membrane Adhesive 5 gal is a multisystem accessories for jobs that require GAF model/MPN 425P in the 5G sell unit. An asbestos-free, premium trowel-grade cement designed for use in SBS modified bitumen systems.

Key Specs

• Brand: GAF
• Model / MPN: 425P
• SKU: GAFMA1015
• Sell unit: 5G
• Product type: Multisystem Accessories
• Size / color: 5 gal
• Category: Commercial Roofing | Commercial Roofing/Commercial Roofing Accessories | Commercial Roofing/Commercial Roofing Accessories/Multisystem Accessories
• Coverage / unit: 5 gal per listed unit

Key Features

• Specially formulated for ease of installation and enhanced adhesion characteristics
• Designed to be used in the application of the field membrane, MATRIX 101 Premium SBS Membrane Adhesive is available for use in base flashing applications and at any slopes above 1.5:12 (including at cant transitions)
• Coverage Rate 1.52 gallons per 100 sq. ft. (5.77.6 liters)

Coverage & How Much You Need

This item is listed as 5 gal per listed unit. Use the project takeoff, manufacturer installation instructions, and expected waste/overlap to confirm the order quantity.

Compatibility / Fitment

Use this item only when the brand, model/MPN, size/color, sell unit, and system type match the project specification. Do not substitute it for a different multisystem accessories, pack size, color, membrane/system family, or installation condition without checking the manufacturer instructions.

FAQs

What exactly am I ordering?

GAF MATRIX 101 Premium SBS Membrane Adhesive 5 gal, sold as 5G, with SKU GAFMA1015 and manufacturer model/MPN 425P.

What model or part number should I match?

Match model/MPN 425P and confirm the brand is GAF. If the job spec lists a different model, size, color, or system family, hold for review.

What unit is the price based on?

This listing is built around the 5G sell unit. Confirm the unit before comparing price, quantity, or coverage.

How do I estimate quantity?

Use 5 gal per listed unit, then add waste or overlap per the manufacturer instructions and the project design.

What should be checked before purchase?

Confirm the model/MPN, sell unit, size/color, jobsite condition, compatible system components, and any manufacturer installation limits before approving the order.

Roofing and exterior-envelope work can involve fall hazards, weather exposure, fumes, adhesives, and system-specific installation requirements; follow the manufacturer instructions, OSHA-safe work practices, and local code or use a qualified contractor.

Product Expert Notes

Choose this item when GAF model/MPN 425P, SKU GAFMA1015, and the 5G sell unit match the project requirement. It is best treated as an exact-match material selection, not a generic substitute.