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Flex-Grip™ 550 Spray Grade

Fiber-free, all-purpose, sprayable duct sealant.

Flex-Grip 550 Spray Grade.png

Flex-Grip™ 550 Spray Grade

Fiber-free, all-purpose, sprayable duct sealant.

Water-based, spray-applied, labor and cost savings up to 50%.

Where to Buy

Flex-Grip 550 Spray Grade

  • Product Details
  • Technical & Installation

Product Details

Flex-Grip 550 Spray Grade is an all-purpose, fiber-free, sprayable duct sealant for use on all types of metal duct, duct fabric, and flex duct. Distinguished by its ability to accommodate minor vibration and movement, Flex-Grip 550 Spray Grade stays flexible and will not crack. Flex-Grip 550 Spray Grade’s excellent coverage rates and easy spray application provide low installed cost while providing Hardcast’s proven reliability.

Product #316207 - (1) 50-Gallon Drum (Gray)

  • Meets requirements for UL 181B-M

  • GREENGUARD Gold certified

  • LEED V4 qualified

Technical & Installation

  • Flex-Grip 550 Spray Grade | Technical Data Sheet (TDS)

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  • Flex-Grip 550 Spray Grade | Safety Data Sheet (SDS)

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  • Flex-Grip 550 Spray Grade | Safety Data Sheet (SDS) (French)

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  • Flex-Grip 550 Spray Grade | Safety Data Sheet (SDS) (Spanish)

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  • HVAC Products & Solutions Guide

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Featured Tech Tip

A Tale of 3 Guns: Spray Gun Selection for HVAC Adhesives & Sealants

Applying adhesives and sealants with the correct spray gun ensures clean coverage, proper spray patterns, and safe operation. Each product category uses a specific delivery system, so gun interchangeability is not possible. This guide offers a quick overview of the three spray systems used in HVAC applications.

Read the Tech Tip
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