Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 08-09-2013, 09:21   #1
Registered User
 
Suijin's Avatar

Join Date: Feb 2013
Location: Annapolis MD; currently in Oriental NC
Boat: Valiant 40
Posts: 2,929
Removing Old Engine Room Sound Insulation Adhesive...

I am engaged in the unenviable task of replacing the engine room sound/heat insulation on my boat. The original insulation had started to fall apart, the foil falling away and the foam underneath disintegrating into a disgusting black "dust" that needless to say needs to be kept out of the engine.

I've got the bulk of it out, but much of it tore/fell off leaving a varying layer of foam and adhesive behind, stuck tightly to the wall. I am now faced with removing this crap and was hoping someone had some experience getting it off. Going at it mechanically with a still scraper seem fruitless so far.

Thanks in advance for the help.

Oh, and if anyone has some suggestions for what to use to reinsulate it, I'd love to hear. The cost of this stuff is exorbitant, and and I'd like to know what works and what will last.
__________________

__________________
Suijin is offline   Reply With Quote
Old 08-09-2013, 09:27   #2
Registered User
 
neilpride's Avatar

Join Date: Jul 2009
Location: in the world
Boat: csy 44 tall rig.
Posts: 3,099
Re: Removing old engine room sound insulation adhesive...

I use a stuff from 3M called Adhesive remover surface cleaner, is very toxic keep in mind, put some stuff in a plastic can , use a brush to spread the product in the old glue, foam or rest of insulation , wait few seconds, use a scraper for the rest, i use acetone for the final whiping... Without this stuff or similar is a pain in the ass to clean it,,, btw the cost of new insulation is like you say crazy.... cheers...
__________________

__________________
neilpride is offline   Reply With Quote
Old 08-09-2013, 09:30   #3
Registered User
 
neilpride's Avatar

Join Date: Jul 2009
Location: in the world
Boat: csy 44 tall rig.
Posts: 3,099
Re: Removing old engine room sound insulation adhesive...

Nice stuff, expensive...
Attached Images
 
__________________
neilpride is offline   Reply With Quote
Old 08-09-2013, 09:53   #4
Registered User
 
Delancey's Avatar

Join Date: Oct 2011
Location: Miami, FL
Boat: sunk by irma
Posts: 3,464
Re: Removing old engine room sound insulation adhesive...

Yuck, not a fun job.

The adhesive removers mentioned are great for getting the adhesive residue off, but they are offensive smelling and only get the adhesive off, not the foam. The foam still in place can serve to protect the adhesive and the remover can only affect the adhesive around the perimeter of the foam. By working in from the perimeter, with enough time, you can get the job done using the remover.

Based on what you said it sounds like there was as much foam left glued to the boat as came off in your hand when you pulled the insulation out. The foam being all rubbery and resilient is hard to scrape off.

An alternative approach might be to try and use a heat gun to soften the adhesive to help make scrapping the foam off easier, then get at it with the remover to clean the residue off. No matter what, that stuff is a bummer to remove. Good luck!
__________________
Delancey is offline   Reply With Quote
Old 08-09-2013, 10:00   #5
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 19,369
Re: Removing old engine room sound insulation adhesive...

Yeah, that foam is the pits for sure. A big wire brush with the vacuum going may be the best option. YOu only have to get off the real loose stuff right? you are going to cover it back up with new insulation...?
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard











Cheechako is offline   Reply With Quote
Old 08-09-2013, 10:06   #6
Sponsoring Vendor
 
HopCar's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: May 2011
Location: Miami Florida
Boat: Ellis Flybridge 28
Posts: 3,163
Re: Removing old engine room sound insulation adhesive...

When it happened to me I used one of these to knock the remaining foam off them used the solvents and scraper.


Rig a fan to blow fresh air into your work space. Those acetone fumes can get bad.
__________________
Hopkins-Carter Marine Supplies & Fishing Tackle
What You Need, at the Price You Want...with Service!
HopCar is offline   Reply With Quote
Old 08-09-2013, 10:11   #7
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 19,369
Re: Removing old engine room sound insulation adhesive...

Be very careful..... solvents like acetone in the engine spac could be deadly... one little spark will do it.... just turning on the vacuun might! (I've seen a vacuum explode from acetone fumes!) Why remove the goo? arent you just going to re-goo it?
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard











Cheechako is offline   Reply With Quote
Old 08-09-2013, 11:01   #8
Registered User
 
Suijin's Avatar

Join Date: Feb 2013
Location: Annapolis MD; currently in Oriental NC
Boat: Valiant 40
Posts: 2,929
Re: Removing old engine room sound insulation adhesive...

Thanks guys. I'd call the extent of foam "patchy"...none of it is that thick; as I was peeling the stuff off, either it came off clean or the foam parted close to the adhesive surface.

I definitely want to pursue mechanical means first...the engine compartment is very small, with a door into it the size of a kitchen cabinet door, and pretty much zero ventilation. But I have to actually be in the compartment to get the work done. The less solvent I have to use the better.

There is really no way to get good ventilation in there, and I can already feel lightheaded and headachy just thinking about using solvents in there. About all I can think of is putting my monster shop vac on blow and running the hose to the far corner of the compartment.

So it's wire/nylon wheel, then heat gun (wish it was November lol), then solvent as a last resort.
__________________
Suijin is offline   Reply With Quote
Old 08-09-2013, 11:21   #9
Sponsoring Vendor
 
HopCar's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: May 2011
Location: Miami Florida
Boat: Ellis Flybridge 28
Posts: 3,163
Re: Removing old engine room sound insulation adhesive...

I imagine that Cheechako is right, Any glue left after the wire brush could just be glued over. It's got to be pretty well stuck.

I like your idea of the nylon wheel. It is probably more pleasant to work with than the wire wheel was.

By the way, I think that the newer black foam stuff won't fall apart like the old stuff did. At any rate that's what the manufacturer told me. Time will tell.

Be sure to use mechanical fasteners on the pieces that go overhead. The glue alone seems to work well on vertical surfaces but I like to back it up with mechanical fasteners on the overhead.

Will you be using the kind that is self adhesive or a spray on adhesive?
__________________
Hopkins-Carter Marine Supplies & Fishing Tackle
What You Need, at the Price You Want...with Service!
HopCar is offline   Reply With Quote
Old 08-09-2013, 11:24   #10
cruiser

Join Date: Feb 2011
Location: medusa NY
Boat: Tayana Surprise 45 schooner "Union Pacific"
Posts: 2,098
Re: Removing old engine room sound insulation adhesive...

to get it off: sandpaper.

i am in the process of removing and replacing mine as well.
the first layer will be
Dynamat Xtreme
then over that will be
Hoodliner
__________________
scoobert is offline   Reply With Quote
Old 08-09-2013, 12:02   #11
Registered User
 
neilpride's Avatar

Join Date: Jul 2009
Location: in the world
Boat: csy 44 tall rig.
Posts: 3,099
Re: Removing old engine room sound insulation adhesive...

Quote:
Originally Posted by Suijin View Post
Thanks guys. I'd call the extent of foam "patchy"...none of it is that thick; as I was peeling the stuff off, either it came off clean or the foam parted close to the adhesive surface.

I definitely want to pursue mechanical means first...the engine compartment is very small, with a door into it the size of a kitchen cabinet door, and pretty much zero ventilation. But I have to actually be in the compartment to get the work done. The less solvent I have to use the better.

There is really no way to get good ventilation in there, and I can already feel lightheaded and headachy just thinking about using solvents in there. About all I can think of is putting my monster shop vac on blow and running the hose to the far corner of the compartment.

So it's wire/nylon wheel, then heat gun (wish it was November lol), then solvent as a last resort.

Trust me i use before the wire brush and the nylon one, if the old insulation is glued what you can get with the wire brush is a mess , first you heat the glue with the brush, later the brush is full of heated glue sticked to the wire, and lots of small glue balls flying around landing everywhere and get stick it to.. it happen with old glue from headliners to, a mess, but make a try.... Edit: the best way to atach the new insulation is a special cement glue resistant to hig temp, Bostick made one if i remember, never try the other way, but if someone use another way could be good to know.. i have some insulation to do in my engine room to...
__________________
neilpride is offline   Reply With Quote
Old 08-09-2013, 17:04   #12
Registered User

Join Date: Jul 2012
Posts: 175
Re: Removing old engine room sound insulation adhesive...

Multitool with scraper blade might be worth a try. carpet layers use them for removing old glued down carpet.

lee
__________________
banjoship is offline   Reply With Quote
Old 08-09-2013, 18:38   #13
Senior Cruiser
 
Roy M's Avatar

Cruisers Forum Supporter

Join Date: Feb 2007
Location: Southwestern Yacht Club, San Diego, CA
Boat: Searunner 40 trimaran, WILDERNESS
Posts: 3,042
Images: 4
Re: Removing old engine room sound insulation adhesive...

Here's a twist: Consider this a wakeup call that things get old and need replacement. Pull the engine out of the compartment, place it in a large, open space and look at it critically. Perhaps do the deferred maintenance that will obviously (and eventually) come into focus. While the engine is out of the compartment, rip out the insulation, any way that works, and replace it, whatever the cost. Improve the lighting, ventilation, structural and electrical support for the engine while the compartment is open and available. Or don't. Just let trouble compile and develop, using more resources and effort than would otherwise be exerted.

Wake up. Do the right thing. Now.
__________________
Roy M is offline   Reply With Quote
Old 08-09-2013, 19:40   #14
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 17,314
Re: Removing old engine room sound insulation adhesive...

Not sure if someone mentioned but some glues give in to chemical paint strippers.

Beware strippers damage gelcoat.

b.
__________________
barnakiel is offline   Reply With Quote
Old 09-09-2013, 13:42   #15
Registered User
 
Suijin's Avatar

Join Date: Feb 2013
Location: Annapolis MD; currently in Oriental NC
Boat: Valiant 40
Posts: 2,929
Re: Removing old engine room sound insulation adhesive...

Well the wire wheel worked great. Chewed the old foam off in no time flat, right down to the adhesive, and did not gum up at all. I had assumed it would get totally fouled so quickly as to be useless, but it's not picking up the adhesive at all. I think I am going to go right over the old adhesive and probably put a few additional mechanical hangers on the vertical surfaces as precaution.

Scoobert, I think the insulation you picked is ill suited to your application. It's a damping material to lower the sound transmission of metal panels, it's not a sound insulation material per se. Boat engine compartments are full of low frequency sound waves which require a different material for sound absorption. Basically, thick and spongy, not thin and dense.
__________________

__________________
Suijin is offline   Reply With Quote
Reply

Tags
adhesive, engine, insulation

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Which Engine? Charlie Engines and Propulsion Systems 30 11-11-2012 07:51
Engine Room Removal Hoist Charlie Engines and Propulsion Systems 13 06-02-2012 06:02
Engine Room Sound Insulation Beersmith Construction, Maintenance & Refit 8 25-09-2011 12:34
How to Lift an Engine Charlie Engines and Propulsion Systems 38 03-09-2011 02:12
Removing Atomic 4 Engine from My Catalina 27 ppenoyar Monohull Sailboats 15 24-07-2011 21:57



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 19:48.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.