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Description
The Dynamat Hoodliner (SKU: 11905) is a commercial-grade thermal and acoustic barrier engineered specifically for high-heat environments like engine compartments, hood undersides, generator housings, and marine engine bays. Built with a thick, high-performance acoustic foam core and a rugged metallic shield, it blocks severe mechanical engine thrash while protecting your vehicle’s exterior hood paint from heat blisters and fade.
Dual-Cell Acoustic & Thermal Engineering
Consistent Cast-Sheet Foam: The core features a premium 3/4-inch thick "sound soaker" acoustic foam that is cast directly into sheets to ensure perfectly consistent resistivity and performance throughout the material.
Hybrid Open/Closed Cell Matrix: Engineered with a specialized combination of both open and closed cells. The open cells allow sound waves to enter the material, while the closed cells trap, bounce, and dissipate those acoustic waves—turning raw engine roar into harmless thermal energy. If the foam were entirely open-cell, the sound would pass straight through; if it were entirely closed-cell, the sound waves would simply bounce off.
97% Radiant Heat Reflection: Covered by a structurally reinforced, highly reflective aluminized skin that bounces back up to 97% of radiant heat away from your hood panel.
Engine Bay Defenses: The outer aluminized face is easy to clean, oil-resistant, and water-resistant, protecting the underlying foam from breaking down when exposed to typical under-hood fluids and grime.
High-Heat Applications & Real Estate
This package contains a single, large utility sheet providing 12 square feet of high-temperature insulation:
Automotive & Diesel Truck Hoods: Lines the underside of large hood panels to drop forward engine clatter, making it highly effective at lowering the cabin noise heard inside loud diesel pickups.
RV & Marine Compartments: Perfect for lining tight motorhome engine doghouses, onboard generator enclosures, and marine engine bays.
🛠️ Installation Best Practice: For absolute maximum acoustic control under your hood, install this Hoodliner directly on top of an initial layer of Dynamat Xtreme vibration-damping mat. Before using the high-tack peel-and-stick backing, clean the underside of the hood completely with a fast-evaporating solvent (like denatured alcohol) to strip away all greasy engine film, road grime, and factory wax.
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Refund Policy
We offer a 30-day return policy, which means you have 30 days from the date you receive your item to request a return.
Eligibility for Returns
To be eligible for a return, your item must be:
In the same condition as received
Unworn or unused
With original tags attached
In its original packaging
You must also provide a receipt or proof of purchase.
How to Start a Return
To initiate a return, please contact us at jonathon@hotrodhardware.com. Once your return request is approved, you will be provided with the return address and, if applicable, an RMA (Return Merchandise Authorization) number.
Important: Items sent back without prior authorization will not be accepted.
If you have any questions regarding your return, feel free to contact us at the email above.
Damages and Issues
Please inspect your order upon delivery. If your item is defective, damaged, or if you received the wrong item, contact us immediately so we can evaluate the issue and resolve it promptly.
Exceptions / Non-Returnable Items
The following items are not eligible for return:
Custom or personalized products (including special orders)
Hazardous materials, flammable liquids, or gases
Sale items
Gift cards
If you are unsure whether your item qualifies, please contact us before initiating a return.
Exchanges
The fastest way to receive a replacement item is to return your original item (once approved) and place a new order separately.
Free Shipping Orders
Orders that qualified for free shipping are subject to deduction of the original outbound shipping cost if the item is returned.
Refunds
Once your return is received and inspected, we will notify you regarding the approval status of your refund.
If approved:
Refunds will be issued to your original payment method
Any applicable restocking fees will be deducted
Original shipping charges (if applicable) will be deducted
Return shipping costs (if arranged by Hot Rod Hardware) will be deducted
Please note:
Payment processing fees (including PayPal, Amazon Pay, or other merchant fees) are non-refundable
It may take additional time for your bank or credit card provider to process and post the refund
