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Pro-grade auto-body supply · Any quantity · 23,000+ SKUs in stock
23,000+ pro-grade SKUs in stock
Duramix By Seymour

Duramix By Seymour Duramix NVH Dampening Material (7 oz.)

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$54.19
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Overview

Built for the booth.

A non-shrinking formula used to reduce noise, flutter, and vibration between intrusion beams and braces to body panels.

DURAMIX 1450 NVH Dampening Material is a professional-grade vibration and noise control solution designed for automotive body panel applications. This 7 oz. aerosol product provides effective dampening properties to reduce unwanted vibrations, rattles, and road noise in vehicle panels and enclosed spaces.

The material features a convenient 1:1 mix ratio and achieves full cure in 24 hours for efficient workflow planning. It bonds effectively to multiple substrates including aluminum, bare metal, e-coat, OEM finishes, and primer surfaces, making it versatile for various repair scenarios. The aerosol delivery system ensures consistent application and coverage in hard-to-reach areas where traditional dampening materials may be difficult to install.

Apply in a well-ventilated area and follow standard spray application safety protocols including appropriate respiratory protection and eye protection when using this product.

Why Pros Choose Duramix By Seymour DMX

  • Working Time: 60 min. Cure Time: 24 hours @77 degrees F Cure Time: 1 hour @ 160 degrees F Cure Time: 30 min. @ 210 degrees F

Application Guide

  1. Clean and prepare substrate surface. Compatible with aluminum, bare metal, e-coat, OEM finish, and primer surfaces.
  2. Mix material at 1:1 ratio by volume. Mix thoroughly to ensure proper cure.
  3. Apply dampening material to target areas using appropriate application method.
  4. Allow 24 hours cure time before handling or additional processing.

Specifications

Technical specifications for 1450 Duramix NVH Dampening Material (7 oz.)
Part No. 1450
Product Line DMX
Manufacturer DURAMIX BY SEYMOUR
UPC 043281010849
Mix Ratio
1:1
Cure Time
24 hours
Compatible Substrates
Aluminum, bare metal, e-coat, OEM, primer

About Duramix By Seymour

Duramix By Seymour is a trusted manufacturer of professional auto body and refinish products used by collision repair shops and restoration specialists across North America.

Frequently Asked Questions

What surfaces can I apply this NVH dampening material to?

This material is compatible with aluminum, bare metal, e-coat, OEM finishes, and primer surfaces.

How long does this dampening material take to cure?

Full cure time is 24 hours at standard shop conditions.

What's the mix ratio for this product?

Mix at a 1:1 ratio for proper application and performance.

Documents & Safety

Why Buy from autofxmart

  • Authorized distributor — authentic, factory-fresh stock.
  • Fast US shipping — most orders ship within 1 business day.
  • 30-day returns — buy with confidence.
  • Pro-shop pricing — bulk discounts available on request.
  • Expert support — questions? Email us at support@autofxmart.com.
Get the mix right

Mix & coverage calculator

Locked to this product's ratio of 1:1 (clear : hardener).

Clearcoat to spray
5L
Your batch1:1
Clearcoat5
Hardener2.5 L
Ready to spray7.5 L
Cure & dry schedule

Timing at 77°F

Work time
60 Minutes
Full cure
24 Hours
How to apply

Steps

1Clean both surfaces to bare, dry substrate.
2Load the cartridge and fit the mixing nozzle.
3Apply an even bead (or clamp) where needed.
4Tool or smooth the joint before it skins over.
5Allow to cure fully before stressing or painting.
Specifications

Full data

BrandDURAMIX BY SEYMOUR
Part #1450
UPC043281010849
ApplicationA non-shrinking formula used to reduce noise, flutter, and vibration b
OriginUS
ConditionNew
Frequently asked

Good to know

Most in-stock orders for DURAMIX BY SEYMOUR DMX ship the same or next business day from our US warehouse. Expedited options are available at checkout. Freight-class items may require an additional 1–2 days for carrier pickup.
Yes. autofxmart is an authorized distributor of DURAMIX BY SEYMOUR products. Every unit is factory-fresh, sealed, and backed by the manufacturer's standard warranty. If you have a concern, contact support@autofxmart.com and we will make it right.
The MPN for DURAMIX BY SEYMOUR DMX is 1450. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.

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