Discussion in 'Downeast Engine Room' started by Jonathan Carey, Mar 25, 2018.
Looking for recommendations on sound proofing for engine compartment. Thanks in advance!
Soundown (Sound Down, sound down, sounddown) - The Woldwide Leader in Noise Control Engineering
I like this stuff:
Soundown Sound-Stop Foam Panel with 1lb Barrier Layer
Besides that some of the best gains was "blankets" for the valve covers and oil pan and turbo. Like this stuff :
I had a marine exhaust insulation company make them for me.
I believe first level of attack is closing all gaps that let sound out. Also gaskets on engine hatches, etc. Then sounddown panels to bulkheads and engine room overhead/hatches. Others also use carpeting/mats and or underlayment atop the engine area to control sound.
Anyone have a source for a good, thick gasket that is maybe 1/2” x 1 1/4” medium density, closed cell, adhesive backed?
Rubber Seal Material, 3 types
Looks like it might be too thick for me. Is it adhesive backed or just get some double sided tape?
No adhesive, I used to use a water based 2 part epoxy made by Lord Chemical.
Hi - working on a similar project and someone suggested a 2 part expanding foam for insulation. Anyone know if this would hold up to the heat of an engine? I can't find anything online.
That stuff is probably extremely flammable. I don’t think that would be the best option for soundproofing in an engine companrtment.
This place has a dizzying array of stuff..
D-Profile Sponge Rubber Seals
Second on the soundown. 2" thick, 2lb / ft^2.
Seal all hatches with foam tape; available with adhesive in every possible width, thickness and density one could ever want from McMaster Carr. Pack all cable conduits with foam.
No exhaust hangers connected to floor.
If you really want to get after it, more Soundown 2lb/ft^2 carpet underlayment on top.
While not absolutely precise, there are decent apps for iphones that measure sound pressure levels so you can get a fell for progress you are making; or not.