Spray in sound deadener/undercoating?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bagged91 · 02-17-2005, 09:04 AM

When I finish doing the rot repair on the 72' Burb, I wanted to spray undercoating on the inside of the rear wheeltubs, underside of floorpans and rockers and also inside the truck on the 1/4 panels. Mainly I wanted to do this to try and prevent or at least slow down the rust from happening again but I also want to loose some of the tinny work van sound on the inside. My main concern is odor. Has anyone used undercoating on the inside of their truck and experienced any foul odors on a hot summer day from it? Anyone have a product they used that they could reccommend? Does the spray in Rhino Lining stuff do anything?

Thanks! Joe

GreyHoundSteve · 02-17-2005, 10:31 AM

I dont remember the brand but i picked it up at the Dupont store. Its a spray on undercoating and doesnt have any smell at all after it dries. I sprayed the underside of my cab and fenderwells with it and it looks pretty good. It looks like black sanpaper when it sets. Its not nearly as thick as lineX but i am just using it for rust prevention. I dont know that it would make for very good insolation.

ChevyDude · 02-17-2005, 11:21 AM

Napa Auto parts stores carry the Spray-On undercoating in a rattle can.

orangeuavol · 02-17-2005, 10:16 PM

I used the 3M rattle can spray on undercoating and am real happy with the results. I don't think I would use it inside the cab.

cableguy0 · 02-17-2005, 10:33 PM

i would use roll on bedliner type stuff inside im going to use it on my cab floor and my brother coated the whole inside of his jeep with it. so when he sinks it in the mud it wont hurt anything. stuff doesnt have any weird smell or anything like that. im using it more for soundproofing than anything else

bagged91 · 02-17-2005, 10:44 PM

Sounds like what I want... Thanks guys...

Joe67 · 02-17-2005, 11:04 PM

I'm considering having the floors sprayed with Line-X once I have my rot repaired. Has anyone done this?

I'm thinking both sides of the floor, top and bottom...

Longhorn Man · 02-17-2005, 11:18 PM

I plan on coating the back side od the fenders, doors, and bed sides with POR15, the cab floor will get some too, then probably some undercoating on top of that.

68LSS1 · 02-18-2005, 04:40 AM

I did a lot of research looking for a product to reduce noise, vibration and heat. Looked at everything from Dynomat to brown bread to Fat Mat to foil insulation at Home Depot. I have not used this product myself but have heard very good things from some that have. It's called Lizard Skin and the website is here. It's not cheap but a lot less than Dynomat (which does not have a heat barrier unless you step up to the Dynomat Xtreme and put the Xtremeliner over that). But it does reduce noise/vibration and is a heat barrier. And it weighs a ton less than all those other products.

Joe67 · 02-18-2005, 07:52 AM

Thanks for the link. Has anyone used this product?

Nice pics of your truck BTW

72MARIO · 02-18-2005, 09:25 AM

I used a product called Hippo roll in bed liner on the back wall, floor and firewall inside my cab mainly for rust protction. The torch red paint was too expensive to use under the carpet. This stuff is really thick and sticks really good it should help a bit with the sound. Before I coated the back wall it was really tinny sounding now it alot more solid. If you get this stuff on your hangs it does not come off I got a bit on my eblow 3 weeks ago and it's still stuck.

02-17-2005, 09:04 AM	#1
bagged91 Out draggin' Join Date: Jan 2004 Location: Pitman,NJ Posts: 1,574	Spray in sound deadener/undercoating?? When I finish doing the rot repair on the 72' Burb, I wanted to spray undercoating on the inside of the rear wheeltubs, underside of floorpans and rockers and also inside the truck on the 1/4 panels. Mainly I wanted to do this to try and prevent or at least slow down the rust from happening again but I also want to loose some of the tinny work van sound on the inside. My main concern is odor. Has anyone used undercoating on the inside of their truck and experienced any foul odors on a hot summer day from it? Anyone have a product they used that they could reccommend? Does the spray in Rhino Lining stuff do anything? Thanks! Joe __________________ 91 GMC Xcab LB-Bags/bd/caddy clip SOLD 72 C10 Cheyenne Super LWB SOLD 92 GMC K1500 Burb 72 C10 Burb (ex. Cheesewagon)SOLD 72 C20 Burb parts truck 71 C10 Burb "project"

02-17-2005, 11:21 AM	#3
ChevyDude Senior Member Join Date: Jun 2003 Location: Westminster, CO Posts: 3,071	Napa Auto parts stores carry the Spray-On undercoating in a rattle can. __________________ Alex 1971 Lil' Red 350 SBC 700R4

02-17-2005, 10:16 PM	#4
orangeuavol GO VOLS! Join Date: May 2001 Location: Knoxville, TN Posts: 725	I used the 3M rattle can spray on undercoating and am real happy with the results. I don't think I would use it inside the cab. __________________ http://1972blazer.shutterfly.com/<= blazer build pics It's called golf because all the other four letter words were taken. It's easier to ask for forgiveness than for permission.

02-17-2005, 10:33 PM	#5
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,950	i would use roll on bedliner type stuff inside im going to use it on my cab floor and my brother coated the whole inside of his jeep with it. so when he sinks it in the mud it wont hurt anything. stuff doesnt have any weird smell or anything like that. im using it more for soundproofing than anything else __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

02-17-2005, 10:44 PM	#6
bagged91 Out draggin' Join Date: Jan 2004 Location: Pitman,NJ Posts: 1,574	Sounds like what I want... Thanks guys... __________________ 91 GMC Xcab LB-Bags/bd/caddy clip SOLD 72 C10 Cheyenne Super LWB SOLD 92 GMC K1500 Burb 72 C10 Burb (ex. Cheesewagon)SOLD 72 C20 Burb parts truck 71 C10 Burb "project"

02-17-2005, 10:31 AM	#2
GreyHoundSteve Registered User Join Date: Oct 2004 Location: DFW TX Posts: 769	I dont remember the brand but i picked it up at the Dupont store. Its a spray on undercoating and doesnt have any smell at all after it dries. I sprayed the underside of my cab and fenderwells with it and it looks pretty good. It looks like black sanpaper when it sets. Its not nearly as thick as lineX but i am just using it for rust prevention. I dont know that it would make for very good insolation.

02-17-2005, 11:04 PM	#7
Joe67 67 is sold Join Date: Apr 2001 Location: Troy, Michigan Posts: 6,738	I'm considering having the floors sprayed with Line-X once I have my rot repaired. Has anyone done this? I'm thinking both sides of the floor, top and bottom... __________________ Joe - Formerly 67c10step ------------------------------- 1967 Chevy Stepside - ECE 4/6, fuelcell, 5lug - SOLD gr8lakes - My ebay auctions Click here to order forum apparel :: Click here to become a subscribing member

02-17-2005, 11:18 PM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	I plan on coating the back side od the fenders, doors, and bed sides with POR15, the cab floor will get some too, then probably some undercoating on top of that.

02-18-2005, 04:40 AM	#9
68LSS1 Registered User Join Date: Dec 2002 Location: Tampa Posts: 1,191	I did a lot of research looking for a product to reduce noise, vibration and heat. Looked at everything from Dynomat to brown bread to Fat Mat to foil insulation at Home Depot. I have not used this product myself but have heard very good things from some that have. It's called Lizard Skin and the website is here. It's not cheap but a lot less than Dynomat (which does not have a heat barrier unless you step up to the Dynomat Xtreme and put the Xtremeliner over that). But it does reduce noise/vibration and is a heat barrier. And it weighs a ton less than all those other products. __________________ '68 Short Step LS1/T56, Hydratech, Fatman Fabrications Stage III, Baer, Hot Rods to Hell, US Body, S&W, etc

02-18-2005, 07:52 AM	#10
Joe67 67 is sold Join Date: Apr 2001 Location: Troy, Michigan Posts: 6,738	Thanks for the link. Has anyone used this product? Nice pics of your truck BTW __________________ Joe - Formerly 67c10step ------------------------------- 1967 Chevy Stepside - ECE 4/6, fuelcell, 5lug - SOLD gr8lakes - My ebay auctions Click here to order forum apparel :: Click here to become a subscribing member Last edited by Joe67; 02-18-2005 at 08:51 AM.

02-18-2005, 09:25 AM	#11
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,052	I used a product called Hippo roll in bed liner on the back wall, floor and firewall inside my cab mainly for rust protction. The torch red paint was too expensive to use under the carpet. This stuff is really thick and sticks really good it should help a bit with the sound. Before I coated the back wall it was really tinny sounding now it alot more solid. If you get this stuff on your hangs it does not come off I got a bit on my eblow 3 weeks ago and it's still stuck. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

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