Mastics

CPR™ Seam Sealer

Durable
Versatile
Stable & Resilient

CPR Seam Sealer is a synthetic liquid rubber, brush grade (BG) or trowel grade (TG) mastic specifically designed for application to metal roofs, walls, and problem areas such as gutters, expansion joints, etc. CPR Seam Sealer can be easily applied over sloped, contoured surfaces and will provide long-lasting protection. It cures to a monolithic rubbery membrane with high tensile strength and the ability to elongate and recover. For areas that experience high movement, use either CPR Seam Sealer with Grip Polyester ™ Soft for long-lasting protection.

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Product Specifications

Method	Description
Brush	CPR Seam Sealer BG - All cracks and seams more than 1/64” wide and less than 1/8” wide must be filled and sealed with CPR Seam Sealer BG. Apply at a minimum of 0.67 gal/100 sq. ft. in one coat to provide full protection to the surface. For long-lasting protection, Grip Polyester Soft can be incorporated with the coating or when applicable may be utilized as a reinforcement and underlayment to the CPR Seam Sealer BG. CPR Seam Sealer BG may be applied with a paint brush or heavy nap roller. The coating should be allowed to dry 24 hours before applying the CPR Base Coat. CPR Seam Sealer BG • CPR Seam Sealer TG CPR Seam Sealer TG - Openings and joints wider than 1/8” wide should be covered with Grip Polyester Soft before using CPR Seam Sealer TG. Apply at 1 gal./14 ln. ft. at 8” wide pass at 1/4” thick. CPR Seam Sealer TG is typically applied by trowel or caulking gun. It is applied as easy as any plastic cement, but cures after application to provide a monolithic rubber-like seal. P R E C A U T I O N S • Do not apply when the ambient temperature is below 40 ̊F (5 ̊C) or above 95 ̊F (35 ̊C) • Do not apply when the surface temperature is above 140 ̊F (60 ̊C) • Do not use on roof areas subject to ponding water • Do not apply when rain is expected within 12 hours • Do not allow the product to freeze • Store material in dry protected areas and on a clean, raised platform • Do not apply over silicone coatings.
Roller	CPR Seam Sealer BG - All cracks and seams more than 1/64” wide and less than 1/8” wide must be filled and sealed with CPR Seam Sealer BG. Apply at a minimum of 0.67 gal/100 sq. ft. in one coat to provide full protection to the surface. For long-lasting protection, Grip Polyester Soft can be incorporated with the coating or when applicable may be utilized as a reinforcement and underlayment to the CPR Seam Sealer BG. CPR Seam Sealer BG may be applied with a paint brush or heavy nap roller. The coating should be allowed to dry 24 hours before applying the CPR Base Coat. CPR Seam Sealer BG • CPR Seam Sealer TG CPR Seam Sealer TG - Openings and joints wider than 1/8” wide should be covered with Grip Polyester Soft before using CPR Seam Sealer TG. Apply at 1 gal./14 ln. ft. at 8” wide pass at 1/4” thick. CPR Seam Sealer TG is typically applied by trowel or caulking gun. It is applied as easy as any plastic cement, but cures after application to provide a monolithic rubber-like seal. P R E C A U T I O N S • Do not apply when the ambient temperature is below 40 ̊F (5 ̊C) or above 95 ̊F (35 ̊C) • Do not apply when the surface temperature is above 140 ̊F (60 ̊C) • Do not use on roof areas subject to ponding water • Do not apply when rain is expected within 12 hours • Do not allow the product to freeze • Store material in dry protected areas and on a clean, raised platform • Do not apply over silicone coatings.

Method

Description

Brush

CPR Seam Sealer BG - All cracks and seams more than 1/64” wide and less than 1/8” wide must be filled and sealed with CPR Seam Sealer BG. Apply at a minimum of 0.67 gal/100 sq. ft. in one coat to provide full protection to the surface. For long-lasting protection, Grip Polyester Soft can be incorporated with the coating or when applicable may be utilized as a reinforcement and underlayment to the CPR Seam Sealer BG. CPR Seam Sealer BG may be applied with a paint brush or heavy nap roller. The coating should be allowed to dry 24 hours before applying the CPR Base Coat. CPR Seam Sealer BG • CPR Seam Sealer TG CPR Seam Sealer TG - Openings and joints wider than 1/8” wide should be covered with Grip Polyester Soft before using CPR Seam Sealer TG. Apply at 1 gal./14 ln. ft. at 8” wide pass at 1/4” thick. CPR Seam Sealer TG is typically applied by trowel or caulking gun. It is applied as easy as any plastic cement, but cures after application to provide a monolithic rubber-like seal. P R E C A U T I O N S • Do not apply when the ambient temperature is below 40 ̊F (5 ̊C) or above 95 ̊F (35 ̊C) • Do not apply when the surface temperature is above 140 ̊F (60 ̊C) • Do not use on roof areas subject to ponding water • Do not apply when rain is expected within 12 hours • Do not allow the product to freeze • Store material in dry protected areas and on a clean, raised platform • Do not apply over silicone coatings.

Roller

Physical Property	Value
Tensile Strength	BG: 200 psi TG:600 psi
Elongation	BG: 200% minimum TG: 400% minimum

Type	Link
Data Sheets	CPR Seam Sealers Technical Data Sheet
SDS	CPR Seam Sealer BG Safety Data Sheet
SDS	CPR Seam Sealer TG Safety Data Sheet

Features

CPR Seam Sealer Related

CPR™ White Coating

Coatings

CPR™ Base Coat

Coatings

Garla-Flex®

Mastics

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Mastics

CPR™ Seam Sealer

Product Specifications

Technical Data

Application

Physical Properties

Documents

Features

Durable

Versatile

Stable & Resilient

CPR Seam Sealer Related

CPR™ White Coating

CPR™ Base Coat

Garla-Flex®

How can we help?