2nd Gen Non-Engine/Transmission Noise reduction effort - Part2

[Dsl_Duo]

I thought the last link was getting way too big... .



I have purchased materials to reduce the noise coming into my cab and was wondering what adhesive was being used for adhering the lead sheet to the cab body? Besides just "contact cement", what brand / product name?



LSFarm?

Others?



Thanks,

Dsl_Duo

 

[Lsfarm]

Glue

Well, it is just regular contact cement, I think the can I have is from Weldwood. But I'm sure that 3M makes it as well as many store brands too.



Just go to the adhesive department at the local hardware and ask for contact cement.



3M makes a spray cement called 77 I think or maybe 777. It works pretty good too.



Buy a cheap throw-away brush or get some mineral sprits [regular paint thinner] to clean the brush.



Hope this helps. Greg L the Noise Nazi

 

[Dsl_Duo]

Thanks Greg,

I did purchase Weldwood and tried a couple of pieces about 9" x 16" on the back wall of the cab. Both pieces had a radius on them… maybe that’s why they didn’t seem to hold as well as I thought they should.

After the learning curve of working with the lead, the hardest part seems to be holding the pieces in place until they cure enough to stay put.

Maybe I should work with smaller pieces.

I also purchased 3M's 77, but I was going to use it for the Sound Stop over top of the lead.



Thinking out loud.



After I'm through I'll post some pictures of the project.



Dsl_Duo

 

[KL]

Dsl_Duo, I have used both the Weldwood contact cement and 3M # 77 spray adhesive to apply the GSI foam. The spray adhesive is tacky in a matter of seconds, while the Weldwood takes at least a few minutes. So the spray adhesive may be quicker and easier. But I have not installed lead, so I don't know how well it would work on large pieces of heavy lead. Klaus

 

[TomGolden]

I also have used the 3M #77 spray adhesive with my GSI foam, works great! I haven't done any lead either.



Tom

 

[Dsl_Duo]

Well now, being in the middle of this project, I have a new and GREATER appreciation for all of the work that LSfarm and others have done to reduce their cab noise.

I have the back wall covered with lead and have started covering the floor up to the back of the drivers / passenger seats. Tomorrow I should finish the floor and start the Sound Stop install which should go faster than the lead.

I am taking some pictures and will post some when I am done (with the back half).



Oh yea, I am using "PL (brand) Polyurethane Premium Construction Adhesive" to hold the lead in place. Stuff cures a little faster than Weldwood and will hold the truck together when all else is gone! It is dispensed in a "caulking tube" gun.



Dsl_Duo

 

[pwr2tow]

When useing contact cement apply a thin film to both surfaces, then let dry for a few minutes then stick the two surfaces together. Make sure you have it lined up right because you will not be able to remove them after they make contact.



Ron

 

[Lsfarm]

Actually not

When installing lead sheet, it is best to not follow the normal contact cement method that Ronsram posted above.



For the lead sheet, do a 'dry fit' with the piece, roll and shape it to fit the contours of it's location, then apply a wet layer of contact cement, and position the piece of lead and wiggle it into position. Then roll it down into the contours of it's final position. This allows for a good no-gaps installation right against the sheet metal.



Now for foam, I think letting the cement to get tacky would make the install a bit easier, but I still trial fit each piece before glueing, because once the cement has made 'contact' it is stuck!! And you will pull the foam apart trying to get it off to reposition it if not in the right place.



Hope this helps. Greg L. The Noise Nazi

 

[Partyat33]

I pulled the seats and carpet. Installed 2. 5 lb lead on the back wall and 1/2" soundstop on the floor and back wall. I can't really say I noticed any difference. If anything it has highlighted how much noise is coming from the front.



Dennis

 

[jandtjil]

DriverDesign Truck Skid Plate

Has anyone actually saw a DriverDesign truck Skid Plate http://www.driverdesign.com/Driver Design/FrameSets/tspSet.htm ? Am wondering how far they extend rearward?



A bit pricey, but if it closes off some of the area where sound emminates, it could be an effective sound mod.

Thoughts??



JJ

 

[KL]

I have never seen any of these skid plates. Can't tell from their web site if they go back far enough? But it does look like they might improve the air flow (and aerodynamics) under the truck at highway speeds. KL