heat/noise insulation

caslor · Post by **caslor** » Tue Mar 25, 2008 11:17 pm

Hi

i was wondering what is the best material to place in the rear sides.

i refer to the empty space is from the engine department to the passengers department . (where the wiring harnesses passes )

stock vw came with a material there like a mix of hair and clothes ...

now what i should place there for best results ?

thanks in advance

pafree · Post by **pafree** » Sun Apr 13, 2008 10:59 pm

we use this building insulation. it is thin and has a serious R value. we also used it behind the stainless steel engine compartment panels. i dont know if it is the best but it is an ideal. we like it and we get straps for free when my brother in law's company builds a new metal building. http://www.steel-building-insulation.co ... prodex.jpg

MNAirHead · Post by **MNAirHead** » Mon Apr 14, 2008 10:09 am

Caslor.

I normally use a high end undercoating "3M Body Shutz" In USD it costs about $100 to do a car.. sprays on.

OR Dynomat seem to be the preferred material.

My preference is to stay away from adhesive products as they commonly trap water.

Tim

raygreenwood · Post by **raygreenwood** » Mon Apr 14, 2008 1:00 pm

There was a thread here a year ago where I mentioned the ceramic microsphere additives for paint that just suck up sound and heat. This actually works pretty well.
They say it costs about $11 for enough material to treat one gallon of just about any paint type. You can roll it on (recommended) or use a rotary sparayer with a large fan nozzle or brush it on. They say layers of it increase the attenuation. I will be trying this inside of doors, roof and panels later this year.

You can make the concentration higher per gallon ...but you have to be careful so that you have enough liquid to properly leave the microspheres coated and encapsulated once everything is dry. Ray