GP STFU v2 250 MIL SOUND DEADENER

Product Overview

GP STFU v2 250 mil sound deadener combines butyl, a foil barrier and a closed-cell foam layer in one material. It is designed to reduce panel resonance and help control unwanted vibration in a car audio installation. Choose the package coverage for the areas you intend to treat, not just the size of your vehicle.

Key Features & Benefits

• Pure-butyl layer for panel treatment.
• Foil barrier and closed-cell foam layer in one construction.
• 250 mil nominal thickness.
• Seven package sizes from a single sheet to 30 sheets.
• Useful for planning targeted treatment or a larger interior project.

Technical Specifications

• Product: GP STFU v2.
• Nominal thickness: 250 mil.
• Construction: butyl, foil barrier and CCF layer.
• Coverage per sheet: 4 square feet.
• Package selections: 4, 20, 40, 60, 80, 100 or 120 square feet.
• Sheet counts: 1, 5, 10, 15, 20, 25 or 30 respectively.

Why Choose This Product?

A combined material gives an installer one product to plan around when addressing vibrating panels and trim contact. Coverage needs depend on the specific surfaces and installation goals. Treating a rattling area is different from covering a complete interior, so measure the intended areas first.

Installation & Compatibility Notes

GP recommends a roller to achieve full surface contact. The supplier permits gentle warming with a hairdryer when needed and warns that a heat gun can damage the foam layer. For uneven surfaces, GP recommends cutting smaller pieces to improve contact. Test clearance before reinstalling trim; the foam layer compresses, but actual space varies by vehicle and panel.

Frequently Asked Questions

How much material is in one sheet?

Each sheet provides 4 square feet of coverage. The product options show both area and sheet count.

Should I use a heat gun?

GP warns that a heat gun can damage the acoustic foam. Follow the supplier’s application guidance and use a roller; gentle hairdryer warming may be used when needed.

Will it guarantee a louder system?

No specific sound-pressure or frequency-response improvement is promised. Results depend on the vehicle, placement and installation.

Will it fit behind every trim panel?

Check your particular trim clearance. The foam layer can compress, but that does not guarantee fit in every location.

Explore More

Need help planning your installation? Contact 12 Volt Outlet with your vehicle and system details.