The Thermal-Grip® CI Prong Washer is a high-performance 2″ diameter plastic washer designed to securely attach continuous rigid insulation (ci) to a variety of substrates. Engineered for speed and efficiency, the washer features dual prongs that allow for easy pre-spotting directly into insulation, eliminating the need for pre-assembly and simplifying on-the-wall fastening.
Ideal for use with Grip-Deck® self-drilling screws or Hi-Lo thread screws with ceramic coating, this washer provides a strong, reliable hold across a wide range of insulation materials, including XPS, polyiso, mineral wool, and rock wool. Built for durability, it includes UV stabilizers and a reinforced center design to prevent pull-through.
Key Benefits
- Faster Installation – Pre-spotting prongs eliminate hand assembly
- Secure Hold – Reinforced bullseye ring prevents fastener pull-through
- Versatile Compatibility – Works with multiple insulation types
- Durable Design – UV stabilized for jobsite exposure
- Efficient System Use – Compatible with Grip-Lok auto-feed systems
Features
- 2″ diameter solid cap washer (no keyholes)
- Dual prongs for easy pre-spotting and installation
- Stiffened center bullseye ring for added strength
- Flexible perimeter reduces tearing of the insulation facer
- Flattens evenly on the insulation surface for secure fastening
- Carbon black UV stabilizers for durability during construction
- Designed for use with Grip-Deck® screws and compatible fasteners
- Optional bullseye ring for use with Grip-Lok auto-feed systems
- Washer only (screws sold separately)
- Made in the USA
Applications
- Continuous insulation (CI) attachment
- Exterior wall systems
- Commercial and residential construction
- Rigid insulation fastening (XPS, polyiso, mineral wool, rock wool)
- Installation Notes
- Pre-spot washer into insulation using dual prongs
- Drive a screw through the washer into the substrate
- No pre-assembly required
Why Choose Thermal-Grip® CI Prong Washers?
Thermal-Grip® washers are designed to improve installation speed while maintaining strong, reliable fastening performance. Their innovative prong design and reinforced construction make them a trusted solution specified by leading insulation manufacturers.
Packaged in boxes of 1000
*Patented and/or Patent Pending
Contact us for more information.