The GAF HydroStop PremiumCoat Finishcoat 2 gal is a liquid applied systems for jobs that require GAF model/MPN 890221419PQ in the 2G sell unit. GAF Premium Acrylic HydroStop Top Coat is a professional grade, water-based, acrylic elastomeric coating that is part of the GAF Premium Acrylic HydroStop Coating System

Key Specs

• Brand: GAF
• Model / MPN: 890221419PQ
• SKU: HYDPCBGLGR2
• Sell unit: 2G
• Product type: Liquid Applied Systems
• Size / color: 2 gal
• Category: Commercial Roofing | Commercial Roofing/Membranes | Commercial Roofing/Membranes/Liquid Applied Systems
• Coverage / unit: 2 gal per listed unit

Key Features

• GAF Premium Acrylic HydroStop Top Coat can be used over a variety of substrates to help provide protection against damage from exposure to UV and weather elements
• Used in conjunction with GAF Premium Acrylic HydroStop Base Coat and GAF Premium Fabric, it creates the GAF Premium Acrylic HydroStop System, a liquid-applied membrane for recover, reroof and new roof applications
• Available in 2 gallon bucket, 5 gallon pail, 55 gallon drum and 275 gallon totes

Coverage & How Much You Need

This item is listed as 2 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 liquid applied systems, pack size, color, membrane/system family, or installation condition without checking the manufacturer instructions.

FAQs

What exactly am I ordering?

GAF HydroStop PremiumCoat Finishcoat 2 gal, sold as 2G, with SKU HYDPCBGLGR2 and manufacturer model/MPN 890221419PQ.

What model or part number should I match?

Match model/MPN 890221419PQ 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 2G sell unit. Confirm the unit before comparing price, quantity, or coverage.

How do I estimate quantity?

Use 2 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.

Verify the manufacturer instructions, local code, and project specification before installation or substitution.

Product Expert Notes

Choose this item when GAF model/MPN 890221419PQ, SKU HYDPCBGLGR2, and the 2G sell unit match the project requirement. It is best treated as an exact-match material selection, not a generic substitute.