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Foretravel Motorhome Forums => Foretravel Tech Talk => Topic started by: tmehrkam on February 02, 2021, 10:31:19 pm

Title: Insulation on Generator Door
Post by: tmehrkam on February 02, 2021, 10:31:19 pm
The insulation on the top portion of the generator door of my 2006 Nimbus is starting to separate.  The top layer about four inches has separated and is loose and folded over.

I assume this is just sound deadening.  Or could be heat protection for the panel?

I worry if I leave it as is it will block the cooling passages of the Genet possibly causing it to over heat.

Remove it, Leave it or replace it.  If replace it what to use?
Title: Re: Insulation on Generator Door
Post by: AC7880 on February 02, 2021, 10:48:32 pm
I stripped off the old failing stuff in 2019 and used 3M spray adehive to install this: Amazon.com: Dynamat 11905 Hoodliner 32" x 54" x 3/4" Thick Self-Adhesive... (https://www.amazon.com/gp/product/B00069QLVC/ref=ppx_yo_dt_b_asin_title_o02_s01?ie=UTF8&psc=1)

It's much lighter in weight, but seems to work fine
Title: Re: Insulation on Generator Door
Post by: rbark on February 02, 2021, 10:51:24 pm
Mine was falling out also so I replaced it with the bubble wrap with the silver backing. Don't notice any change in noise.
Title: Re: Insulation on Generator Door
Post by: tmehrkam on February 02, 2021, 11:08:43 pm
I stripped off the old failing stuff in 2019 and used 3M spray adehive to install this: Amazon.com: Dynamat 11905 Hoodliner 32" x 54" x 3/4" Thick Self-Adhesive... (https://www.amazon.com/gp/product/B00069QLVC/ref=ppx_yo_dt_b_asin_title_o02_s01?ie=UTF8&psc=1)

It's much lighter in weight, but seems to work fine
It says self adhesive.  You used 3/M spray and the self adhesive both?
Title: Re: Insulation on Generator Door
Post by: tmehrkam on February 02, 2021, 11:10:08 pm
Mine was falling out also so I replaced it with the bubble wrap with the silver backing. Don't notice any change in noise.
How did you attach the bubble wrap/ foil product?  I see it is available at Home Depot.  Is that what you used.
Title: Re: Insulation on Generator Door
Post by: AC7880 on February 03, 2021, 12:57:34 am
It says self adhesive.  You used 3/M spray and the self adhesive both?
Yes. I was not sure the self adhesive would last, so used some 3m spray as well.

The product itself is easy to trim to fit.  If I were to do it again I would use the same product.
Title: Re: Insulation on Generator Door
Post by: tmehrkam on June 05, 2021, 12:41:04 pm
Yes. I was not sure the self adhesive would last, so used some 3m spray as well.

The product itself is easy to trim to fit.  If I were to do it again I would use the same product.
We commutated a while ago.  Now is time to do mine.  I removed the old stuff with a putty knife.  There is still some adhesive and traces of the old sound barrier on the door. Any recommendation to get the remaining glue and foam off.    Maybe lacquer thinner or acetone, mineral spirits  ??
Title: Re: Insulation on Generator Door
Post by: AC7880 on June 05, 2021, 05:08:32 pm
We commutated a while ago.  Now is time to do mine.  I removed the old stuff with a putty knife.  There is still some adhesive and traces of the old sound barrier on the door. Any recommendation to get the remaining glue and foam off.    Maybe lacquer thinner or acetone, mineral spirits  ??

If the old remaining glue and foam is on there firmly, I would just leave it and put the new insulation over it. 
Title: Re: Insulation on Generator Door
Post by: tmehrkam on June 05, 2021, 06:51:22 pm
I need to work on it some more.  Most of the loose stuff is off.  I tried white gas and mineral spirits.  Did little or nothing. New insulation arriving Monday.  I will work on it some more then just install it.


Title: Re: Insulation on Generator Door
Post by: rbark on June 05, 2021, 07:19:50 pm
Tmehrkam, I did use home depot product plus 3M spray glue. Cut all pieces to fit then glued them in one at a time. Then used silver ducting tape on all the edges.
Title: Re: Insulation on Generator Door
Post by: John Duld on June 06, 2021, 01:42:57 pm
I used a self adhesive dyna mat in my generator compartment. Used (shoe goo?) to remove old glue. It left a tacky surface that the adhesive surface on your new material will really stick too.
Title: Re: Insulation on Generator Door
Post by: John Duld on June 06, 2021, 09:01:29 pm
Oops, goo gone adhesive remover not shoe goo.