The 1947 - Present Chevrolet & GMC Truck Message Board Network

Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board


Thread Tools Display Modes
Old 05-26-2019, 11:27 AM   #1
Registered User
Join Date: Oct 2011
Location: hudson,wi
Posts: 787
Dynamat prep?

I just purchased some Dynamat and would like to know what prep needs to be done to the floor before installing the mat.....wash, prime and paint first or what?

Any help would be much appreciated.

81 C10 short box

82 K5 Blazer
riz is offline   Reply With Quote
Old 05-26-2019, 01:50 PM   #2
Registered User
Join Date: Dec 2012
Location: Chino Hills
Posts: 1,619
Re: Dynamat prep?

Fix or treat all rust. Dyna may can speed it up.

Replace weather stripping. If water gets under dynamat it will make it worse.

Wash with dish soap the metal your going to apply it too. Wipe with acetone or my personal fav E85.

Apply on a cool day so it doesn't stuck as hard while your working it.
Ziegelsteinfaust is online now   Reply With Quote
Old 05-26-2019, 09:55 PM   #3
Registered User
dagnabbitt's Avatar
Join Date: Dec 2014
Location: Edmonton Alberta
Posts: 158
Re: Dynamat prep?

I wire-wheeled the rust out then coated with POR15. Filled in some pinholes and extra screwholes with JB Weld. Then I just put the dynamat right over it. Worked great. Get a good roller for the mat, it is worth the expense.
Edmonton, Alberta
dagnabbitt is offline   Reply With Quote
Old 05-27-2019, 01:12 PM   #4
Senior Member
frenchy51's Avatar
Join Date: Jun 2014
Location: Orland, Nor-Cal
Posts: 577
Re: Dynamat prep?

I second the POR-15 Good stuff!
1972 Highlander PAC B 400BB
1974 K5 Blazer-6.0 swap
1974 C20 Long Bed 454
several adopted orphans
frenchy51 is offline   Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -4. The time now is 09:16 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Copyright 1997-2013