GAF TOPCOAT Surface Seal SB Primer – White, 55-Gallon Drum
SKU: 17877575433

GAF TOPCOAT Surface Seal SB Primer – White, 55-Gallon Drum

Sale price$164.84 Regular price$183.15
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Description

GAF TOPCOAT Surface Seal SB Primer – White, 55-Gallon DrumTOPCOAT Surface Seal SB Primer, White (55 gal) Solvent based, sprayable thermoplastic rubber primer that cures into a seamless, reflective membrane. Designed to protect and flex with roof movement, ideal for modified bitumen and compatible roofing systems. Key Features: Seamless Protection: Cures to a continuous thermoplastic rubber membrane for durable roof sealing High Reflectivity: Helps reduce surface temperatures and protect roof substrates

TOPCOAT Surface Seal SB Primer, White (55 gal)

Solvent-based, sprayable thermoplastic rubber primer that cures into a seamless, reflective membrane. Designed to protect and flex with roof movement, ideal for modified bitumen and compatible roofing systems.


Key Features:

  • Seamless Protection: Cures to a continuous thermoplastic rubber membrane for durable roof sealing
  • High Reflectivity: Helps reduce surface temperatures and protect roof substrates
  • Flexible Formula: Accommodates temperature-driven expansion and contraction
  • Pro-Ready Application: Sprayable solvent-based primer for efficient coverage
  • Tested & Approved: Meets ASTM standards; CRRC, Energy Star, Miami-Dade, Florida Building Code, UL, and FM approvals

Specifications Table:

Specification Details
Color White
Packaging 55 Gallon Drum
Coverage Area 100 Sq. Ft. (9.3 Sq. m)
Technology Solvent-based sprayable thermoplastic rubber primer/sealant
Membrane Cures to a seamless rubber membrane
Approvals/Certifications CRRC Approved; LEED; Energy Star; Miami-Dade County Approved; Florida Building Code Approved; UL Classified; FM Approved
Standards ASTM D412; ASTM B117; ASTM C794; ASTM G21; FTMS 141.6271; ASTM D2196; ASTM D1475; ASTM E1644
Style/Category Adhesives, Caulks & Sealants
Manufacturer Number 89SD920WP
Product Number GAFTCSSSBWHG55

Frequently Asked Questions (FAQ):

Q: What surfaces is this primer intended for?
A: It’s formulated for roofing applications and commonly used as a primer on modified bitumen and compatible substrates per GAF guidance.


Q: How is it applied?
A: It is a sprayable, solvent-based product; follow the product data sheet for equipment, coverage rates, and application conditions.


Q: What is the color and packaging?
A: White color, packaged in a 55-gallon drum.


Q: What approvals and standards does it meet?
A: It aligns with ASTM D412, B117, C794, G21, D2196, D1475, E1644 and holds CRRC, LEED, Energy Star, Miami-Dade, Florida Building Code, UL Classified, and FM Approved statuses.


Q: What coverage can I expect?
A: Listed coverage area is 100 sq. ft. (9.3 sq. m). Actual coverage varies by substrate and application method.


A Gleaming, Seamless Shield for Modern Roofscapes

This primer sets the stage for a roof that reads crisp and refined, casting a clean white sheen that elevates the skyline. I love its thermoplastic rubber chemistry—supple yet resilient—creating a continuous skin that moves elegantly with the building. Pair it with cool, minimal metal details and charcoal coping for a chic, high-contrast finish. It’s the quiet luxury essential that protects while polishing the entire silhouette.


Elevate and protect your roof with TOPCOAT Surface Seal SB—order the 55-gallon drum today for seamless, high-performance coverage.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 17877575433

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Suzanne Raif
San Leandro, US
★★★★★ 1
Pretty but leather is mildewed.
I read the reviews but took a chance that the one I received would not smell mildewed. Oh my!! It stinks to high heaven!!! And it is too small for my wrist…another chance I took. Instead of returning it, I’m going to try and replicate it using the watch and dangles with ribbon and cords. It was wrapped very tightly in bubble wrap. Perhaps the leather would not have mildewed if it had been able to breathe. Boy! Does it stink!!!!!
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Reviewed in the United States on September 29, 2025
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Oceanmotion
Waukegan, US
★★★★★ 3
Snap closure watch.
Not the best quality or materials but remember, it’s extremely inexpensive.
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Reviewed in the United States on September 8, 2025
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The Bowtie Artist
Fort Morgan, US
★★★★★ 5
Nice accessory for anyone to wear, goes well with any style
Durable material makes it easy to slip onto any wrist (plus, adjustable strap, so there's that too). The fact that the watch actually WORKS is an added point, considering most of these out there have the clock as a graphical enhancement rather than an actual working point to the piece. The title of the item says for girls, but whoever you are out there, wear it despite what it says. These sorts of accessories are multi-person usage. It looks cool with any outfit design, too.
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Reviewed in the United States on November 26, 2023
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Verified Purchase
Genevieve
West Palm Beach, US
★★★★★ 4
Cute! Poor battery.
This is super super cute. I love the layered bangle look and the hanging charm and the dainty little watchface. It's very comfortable to wear. I knock it down a star because the battery it came with only lasted 3 months - I know it was an inexpensive watch, but I was disappointed with the battery life.
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Reviewed in the United States on May 23, 2024
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Verified Purchase
Kirsten
Fort Morgan, US
★★★★★ 3
Cute, but too small
It's cute, but kinda cheaply made, and it doesn't fit my wrists. So, I gave them to my niece. She loves them. (This one and a similar one that I bought)
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Reviewed in the United States on March 31, 2025

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