Plastic Sheet in door

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pureRF

Silver - Posts: 619

Joined: July 22, 2003

Location: United States

Posted: March 29, 2004 at 9:48 PM / IP Logged

I'm looking at applying some damping material to my doors,floors, etc... and was wondering, when i take off the door panels, there is a plastic sheet on the metal of the inside of the door. (2000 4runner) Has anyone else run into this problem and do i just cut it out and apply the damping mat or what?thanks

dream it, build it, fiberglass it

Elrockss

Member - Posts: 27

Joined: March 17, 2004

Location: United States

Posted: March 29, 2004 at 11:01 PM / IP Logged

Yeah, carefully remove it INTACT. It is your moisture barrier!! If it's not in place, moisture from rain, the car wash, garden hose can fall on the inside damaging the door panel,electrical connections/switches, etc. and causing your SUV to smell like old wet socks over time.

This also serves as a mediocure wind/draft stop as well. If it comes apart on the removal, replace it with 3mil clear painter's drop plastic sheeting, sold in rolls at your nearest home improvement center or even Wal-Mart.

Either silicone it back in place over your new dampening job, or use a contractor grade duct tape and secure it around the paremeter of the inner door skin, as it was originally located.

Hope this helps. Plastic Sheet in door -- posted image.

elrock-SS

crudeau

Copper - Posts: 150

Joined: August 25, 2003

Location: United States

Posted: March 31, 2004 at 9:16 AM / IP Logged

Are you covering the whole door with dynamat? If so you can just toss that moisture barrier. Since the dynamat will be replacing it. The below pic is of my door. The dynamat completely covers all openings, and is probably even more of a water barrier then that plastic sheet.

http://users.nac.net/crudeau/images/2003_Mustang_GT/Stereo_Install/DCP_0608%20(Small).JPG

Sobe_Death

Copper - Posts: 78

Joined: February 27, 2004

Location: United States

Posted: March 31, 2004 at 6:43 PM / IP Logged

i wouldnt swap the dynamat for the moisture barrier, what does the dynamat have to hold onto in those voids? nothing, and with it moving around(it will) moisture and dirt will end up working its way under the dynamat that is bonded to the metal,causing it to fall off eventually. just put the dynamat on the metal areas, then reuse or make a new moisture barrier and apply it over the dynamat.

pureRF

Silver - Posts: 619

Joined: July 22, 2003

Location: United States

Posted: March 31, 2004 at 9:33 PM / IP Logged

Thanks Sobe that helps a lot.

dream it, build it, fiberglass it

Clean Install

Silver - Posts: 446

Joined: January 03, 2004

Location: United States

Posted: March 31, 2004 at 9:43 PM / IP Logged

crudeau wrote:

http://users.nac.net/crudeau/images/2003_Mustang_GT/Stereo_Install/DCP_0608%20(Small).JPG

that looks like a good job of dynamatin', that will not work????

If we learn from each success and

each failure, then we can improve ourselves

crudeau

Copper - Posts: 150

Joined: August 25, 2003

Location: United States

Posted: April 06, 2004 at 10:12 AM / IP Logged

Sobe_Death wrote:

What does the moisture have to hold onto in those voids? The dynomat is a 100% moisture barrier then the stock on. Have you ever seen PeelNSeal? Almost the same thing. The dynomat will stick to so much of the door panel that the voids to do not affect it. And dynomat is so sticky, that it doesn't move. I had my 2000 mustang done with dynomat origianl (no aluminum backing) and after 3 years, there was no sagging from the voids, and no moisture damage. Not even any signs of water. Don't forget 9 out 10 times that filmsy stock moisture barrier is just taped on, some times they even use that tar like stuff, that you guess it, resembles dynomat extreme.

DO NOT put the dynomat on top of the moisture barrier, It weighs too much and will stretch the plastic, and it will cause a rattle/tap. It makes the barrier weight so much that it will tap on the sheet metal of the door, when you shut it and when bass hits.

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Plastic Sheet in door

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