---
product_id: 3859916
title: "11103 Dynaliner 32\" x 54\" x 1/2\" Thick Self-Adhesive Sound Deadener – Made in USA"
brand: "dynamat"
price: "R5340"
currency: ZAR
in_stock: true
reviews_count: 7
category: "Dynamat"
url: https://www.desertcart.co.za/products/3859916-11103-dynaliner-32-x-54-x-1-2-thick-self
store_origin: ZA
region: South Africa
---

# Thick 1/2 inch for max sound & heat control Nearly double thermal resistance Durable closed-cell rubber, self-adhesive 11103 Dynaliner 32" x 54" x 1/2" Thick Self-Adhesive Sound Deadener – Made in USA

**Brand:** dynamat
**Price:** R5340
**Availability:** ✅ In Stock

## Summary

> 🚗 Silence the noise, feel the power — upgrade your ride with Dynamat Dynaliner!

## Quick Answers

- **What is this?** 11103 Dynaliner 32" x 54" x 1/2" Thick Self-Adhesive Sound Deadener – Made in USA by dynamat
- **How much does it cost?** R5340 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/3859916-11103-dynaliner-32-x-54-x-1-2-thick-self)

## Best For

- dynamat enthusiasts

## Why This Product

- Trusted dynamat brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Made in USA Since 1989:** Join the legacy of automotive pros who rely on Dynamat’s proven durability and performance.
- • **Waterproof & Rust-Free:** Closed-cell rubber design prevents moisture buildup, protecting your investment from rust and mildew.
- • **Pro-Grade Sound Deadening:** Trusted by top custom builders for a quieter, smoother drive that commands attention.
- • **Ultimate Thermal Shielding:** Experience nearly twice the heat resistance to keep your ride cool under pressure.
- • **Precision Fit & Easy Install:** Self-adhesive backing and flexible 54"x32" sheet make custom cuts and bubble-free application a breeze.

## Overview

DYNAMAT 11103 Dynaliner is a premium 1/2 inch thick, self-adhesive sound deadener and thermal insulator designed for automotive use. Covering 12 sq ft per sheet, its closed-cell rubber construction ensures waterproof, rust-resistant protection while delivering nearly double the thermal resistance of typical insulators. Made in the USA since 1989, it’s the trusted choice of professional custom builders seeking superior noise reduction and heat control.

## Description

Buy DYNAMAT 11103 Dynaliner 32" x 54" x 1/2" Thick Self-Adhesive Sound Deadener – Made in USA: Insulation - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: The genuine article, closed cell, worth it - I've got an old diesel truck and it's very loud. I thoroughly researched a number of products to line the hood and decided to stick with the big brand Dynamat. There are cheaper solutions from the hardware store if you just need a little foam padding, but if you want the best, buy this. Generally quality grades go (from best to worst): Aviation, marine, automotive, consumer/home. This stuff is made for cars and will outperform nearly any home-use product like foam for an attic etc. I contacted Dynamat and they officially do not sell on desertcart. They do officially sell with Summit Racing but the prices are much higher. I decided to order from desertcart directly and check the product. There's a lot of knock-off Dynamat online from less reputable vendors (Ebay etc). While the knock off stuff looks the same, it is not always closed-cell. You want closed cell foam for any exterior installation. Open cell foam will soak up water like a sponge and weigh a ton! Using the roll I got from desertcart and a 1ft by 1ft sample I got directly from Dynamat tech support, I confirmed the desertcart listed product I received was genuine. I even went so far as to weigh each square on a postage scale, soak them in water, and then weigh them again. Neither absorbed any water. The weight was the same after soaking. Installation was straight forward enough. Measure twice, or three times, cut once. I was able to cut the Dynaliner with a good pair of kitchen sheers and this seemed to work much better than box cutters. In order to ensure proper sizing, I cut out templates using construction paper, taped them in place on my hood using painters tape, and then traced them onto the Dynaliner. Be sure to get every nook and cranny filled. You want to ensure the liner is adhered to the entire surface with no air bubbles. To achieve this either start at one side and move to the other SLOWLY, or start in the middle and work out. I went side to side because I could trim off any excess when I hit the final edge. Peel the backing away as you go vs all at once (unless the size piece you are applying is small) because the adhesive is very sticky and it will be hard to keep it from sticking in the wrong places once you remove the backing. I did not use w DB meter to measure the sound drop in my interior but it is significant. I will report back in a year or 2 on durability but so far it looks great, and really cuts down the noise.
Review: Great Stuff! - Damplifier (from Second Skin) + Dynaliner make for a great combination. Dynamat is far messier to install than Damplifier, but the Second Skin version of closed-cell foam liner is not self-adhesive. Thus the Damplifier/Dyanaliner combo, though not exactly cheap, makes for the best DIY install. For doors in particular, don't laze out and simply use big, single sheets to cover the "middle" of the door. (One often sees this in photos of 'professional' installs). Though it requires lots of small pieces because of limited access, take the time to put Damplifier on the outer door skin itself. 100% coverage with this is not necessary, but I do every surface that's reachable. Any material that's not securely stuck to a metal surface is wasted. IMO, it's also very important to treat the crash beams within the doors - they can act as tuning forks and contribute to noise and poor door speaker response. Doing this will take ~50% more material than one would guess by the expose door surface area, but it's worth it. The Dynaliner is stuck over the Damplifier and is much easier because it's far more flexible. By turning the doors into an almost-proper speaker box, stereo quality, especially in the bass, and especially at mid to high volumes is *greatly* improved. It's probably the cheapest sound system upgrade around. BTW, while the doors are opened, I also spray the corner where the outer door skin meets the door frame with waterproof synthetic grease. That corner is a great place for rust to start. Also, avoid covering that edge with soundproofing material - do not give water a place to be trapped and also make sure not to cover the drains at the bottom for the same reason. The 1/4" version of Dynaliner, when you have the clearance to use it, seems noticeably more effective than the 1/8" version. However, the 1/8" thick stuff is the best rattle reducer I've yet found for those annoying rattles coming from interfaces between plastic trim pieces and where the plastic trim is not tightly held in place against metal. Don't confuse this stuff with typical open-cell foam used for furniture cushions! It is useless as a sound deadening or blocking material. Get the real McCoy.

## Features

- Nearly Double Thermal Resistance: Dynaliner is the most effective automotive lightweight thermal insulator available, and is perfect to use on top of Dynamat Xtreme on Floor, Roof, Underhood & Fiberglass Enclosures
- Trusted by Car Lovers & Professionals Alike: Dynamat is used by the world’s top hot rod & custom builders because they know it makes their cars ride cool & quiet
- Durable Self-Adhesive Closed Cell Rubber: This pack contains 12 square feet of Dynaline in one 54”x32” sheet; since it will not hold water, it will not promote rust or mildew like most under carpet paddings & thermal insulators
- Available in ⅛, ¼ & ½ Inch Thickness: Use the thickest Dynaliner your space will allow
- Made in the USA Since 1989: Dynamat is the original & most trusted name in soundproofing & heat control.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001JT5NIU |
| Best Sellers Rank | #22,424 in Automotive ( See Top 100 in Automotive ) #29 in Automobile Insulation |
| Brand Name | Dynamat |
| Coverage | 12 square feet |
| Customer Reviews | 4.7 4.7 out of 5 stars (761) |
| Global Trade Identification Number | 00769103111036 |
| Included Components | DYNAMAT-DYNAMIC CONTROLS |
| Item Dimensions L x W | 54"L x 32"W |
| Item Thickness | 0.5 Inches |
| Item Type Name | ACCESSORIES |
| Manufacturer | Dynamat |
| Manufacturer Warranty Description | LIMITED WARRANTY |
| Material Type | Rubber |
| Recommended Uses For Product | Sound deadening and thermal insulation in car parts |
| UPC | 769103111036 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Dynamat
- **Item Thickness:** 0.5 Inches
- **Material:** Rubber
- **Product Dimensions:** 54"L x 32"W
- **Recommended Uses For Product:** Sound deadening and thermal insulation in car parts

## Images

![11103 Dynaliner 32" x 54" x 1/2" Thick Self-Adhesive Sound Deadener – Made in USA - Image 1](https://m.media-amazon.com/images/I/61HehFO4MyL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The genuine article, closed cell, worth it
*by B***R on November 29, 2016*

I've got an old diesel truck and it's very loud. I thoroughly researched a number of products to line the hood and decided to stick with the big brand Dynamat. There are cheaper solutions from the hardware store if you just need a little foam padding, but if you want the best, buy this. Generally quality grades go (from best to worst): Aviation, marine, automotive, consumer/home. This stuff is made for cars and will outperform nearly any home-use product like foam for an attic etc. I contacted Dynamat and they officially do not sell on Amazon. They do officially sell with Summit Racing but the prices are much higher. I decided to order from Amazon directly and check the product. There's a lot of knock-off Dynamat online from less reputable vendors (Ebay etc). While the knock off stuff looks the same, it is not always closed-cell. You want closed cell foam for any exterior installation. Open cell foam will soak up water like a sponge and weigh a ton! Using the roll I got from Amazon and a 1ft by 1ft sample I got directly from Dynamat tech support, I confirmed the Amazon listed product I received was genuine. I even went so far as to weigh each square on a postage scale, soak them in water, and then weigh them again. Neither absorbed any water. The weight was the same after soaking. Installation was straight forward enough. Measure twice, or three times, cut once. I was able to cut the Dynaliner with a good pair of kitchen sheers and this seemed to work much better than box cutters. In order to ensure proper sizing, I cut out templates using construction paper, taped them in place on my hood using painters tape, and then traced them onto the Dynaliner. Be sure to get every nook and cranny filled. You want to ensure the liner is adhered to the entire surface with no air bubbles. To achieve this either start at one side and move to the other SLOWLY, or start in the middle and work out. I went side to side because I could trim off any excess when I hit the final edge. Peel the backing away as you go vs all at once (unless the size piece you are applying is small) because the adhesive is very sticky and it will be hard to keep it from sticking in the wrong places once you remove the backing. I did not use w DB meter to measure the sound drop in my interior but it is significant. I will report back in a year or 2 on durability but so far it looks great, and really cuts down the noise.

### ⭐⭐⭐⭐⭐ Great Stuff!
*by T***R on November 1, 2014*

Damplifier (from Second Skin) + Dynaliner make for a great combination. Dynamat is far messier to install than Damplifier, but the Second Skin version of closed-cell foam liner is not self-adhesive. Thus the Damplifier/Dyanaliner combo, though not exactly cheap, makes for the best DIY install. For doors in particular, don't laze out and simply use big, single sheets to cover the "middle" of the door. (One often sees this in photos of 'professional' installs). Though it requires lots of small pieces because of limited access, take the time to put Damplifier on the outer door skin itself. 100% coverage with this is not necessary, but I do every surface that's reachable. Any material that's not securely stuck to a metal surface is wasted. IMO, it's also very important to treat the crash beams within the doors - they can act as tuning forks and contribute to noise and poor door speaker response. Doing this will take ~50% more material than one would guess by the expose door surface area, but it's worth it. The Dynaliner is stuck over the Damplifier and is much easier because it's far more flexible. By turning the doors into an almost-proper speaker box, stereo quality, especially in the bass, and especially at mid to high volumes is *greatly* improved. It's probably the cheapest sound system upgrade around. BTW, while the doors are opened, I also spray the corner where the outer door skin meets the door frame with waterproof synthetic grease. That corner is a great place for rust to start. Also, avoid covering that edge with soundproofing material - do not give water a place to be trapped and also make sure not to cover the drains at the bottom for the same reason. The 1/4" version of Dynaliner, when you have the clearance to use it, seems noticeably more effective than the 1/8" version. However, the 1/8" thick stuff is the best rattle reducer I've yet found for those annoying rattles coming from interfaces between plastic trim pieces and where the plastic trim is not tightly held in place against metal. Don't confuse this stuff with typical open-cell foam used for furniture cushions! It is useless as a sound deadening or blocking material. Get the real McCoy.

### ⭐⭐⭐⭐⭐ Review
*by M***S on January 12, 2015*

Excellent really worked

## Frequently Bought Together

- Dynamat Dynaliner 1/2 inch Lightweight Automotive Thermal Insulator – Heat Dampening Kit for Car Floor, Roof, Underhood & Fiberglass Enclosures – Easy Self-Adhesive Install – 32” x 54” x ½”, 12 sq ft
- Dynamat Xtreme Sound Deadening Car Insulation Bulk Pack – Noise Dampening Kit for Floor, Doors, Panels, Hood, Engine or Trunk – Easy Self Adhesive Install – 9 Sheets 18”x32” Each, 36 sq ft total
- DYNAMAT 10007 Dyna-Roller Professional Heavy Duty Sound Deadener Installation Tool with Wood Handle and 2" Wide Rubber Roller

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-04-26*