Car Sound Deadener Heat Shield 78x39 in 21 sqft - Hood & Firewall

Our review of this car sound deadener finds it best suited for DIYers and mechanics who need a lightweight, heat-resistant barrier for the hood or firewall. The single biggest reason to buy is the combined thermal and acoustic protection: the aluminum-coated foam provides a clear reduction in engine noise while blocking heat that can damage paint. Installation is straightforward because the roll is workable at 78 x 39 in and can be trimmed with scissors, making it an efficient option for those fitting a car, truck, RV, or custom project.

Key Features

• Size and coverage: The 78 x 39 in roll supplies about 21 sqft of material, enough for hood or firewall applications on many vehicles without excess waste.
• Aluminum-coated foam: The reflective aluminum surface acts as a heat barrier to help prevent engine heat from damaging paint and reduces radiated heat into the cabin.
• Workable thickness: At about 0.236 in thick, the pad is substantial enough for sound and heat control yet thin enough to trim with scissors and shape around contours.
• Water resistance: The foam construction resists moisture, which helps protect metal surfaces from rusting when installed correctly.
• Compatibility with vibration mats: It pairs well over a 0.079 in butyl vibration deadening mat to improve both heat insulation and sound dampening performance.

Who It's For

This product is aimed at vehicle owners and hobbyists who want an affordable, easy-to-install option to reduce engine noise and heat transfer. It suits people fitting a hood liner, firewall shield, or adding thermal insulation to a truck or RV where a lightweight roll is preferred.

Those seeking a permanent adhesive-backed liner or a heavier, integrated damping system for long-term structural reinforcement should look elsewhere; the roll's adhesive performance drew mixed comments in user feedback, so professional installers who need guaranteed long-term bond may prefer a different product.

Pros & Cons

Pros

• Effective at reducing engine noise and retaining heat where installed.
• Easy to cut and shape by hand, which speeds up DIY installation.
• Lightweight 21 sqft roll covers common hood and firewall areas without excess bulk.
• Water-resistant construction helps protect panels from rust when properly installed.

Cons

• Adhesive stickiness and durability received mixed reports, so some installations may require additional fasteners or adhesive support.

Specifications

Brand	Abahub
Dimensions	78 x 39 in
Coverage	Approximately 21 sqft
Thickness	About 0.236 in
Surface	Aluminum-coated foam
Water resistance	Water resistant

Our Verdict

This Abahub insulation roll delivers solid value for DIYers who need a combined heat shield and sound dampening layer that is easy to trim and apply. It is a practical choice for hood and firewall work when paired with a thin butyl vibration mat, though installers who require a guaranteed long-term adhesive bond should plan to add mechanical fasteners or extra adhesive.

Frequently Asked Questions

Can this be cut with household tools?
Yes, the 0.236 in thickness is designed to be cut with scissors or a utility knife for easy fitting.

Will it prevent rust?
The material is water resistant and helps protect metal from moisture, but proper surface prep and sealing are still recommended to prevent rust.

Is this a fireproof material?
The aluminum coating provides a fire-resistant barrier suitable for hood and firewall insulation, though it is not a substitute for certified fireproof systems in specialized applications.