Installing New OEM Egg Crate Foam for Engine Hatch?

[rapa123]

Hi, I'm getting ready to replace my engine hatch 2 1/2" egg crate foam for my 2006 244 FourWinns. I'll be using new oem egg crate foam that is still currently being used by FourWinns. I'm looking for a good adhesive that has a great heat resistance that will grab and hold up over time. I've been in contact with 3M in which they recommended their Super Trim Adhesive 08090. After searching online, I found it anywhere from $28.00 to $42.00 for a 19oz. can. Here's the kicker.... According to my application, 3M stated that the adhesive requires three coats for each surface. I'll be replacing approx. 35 sq. ft. which requires approx. 14 cans.... Costing approx. $400.00... WoW!! I also asked 3M if they had a brushable type, they stated that they didn't. Brushable would be nice for at least the underside of the hatch.... I'm sure that's going to be a real P.I.A. to try to spray in the tight areas.
Other than that, I've seen insulation hangers w/ clips. Not sure how that would work out for 2 1/2" egg crate foam or if it's a good way to go.
If you have had any experience with a great foam adhesive for this type of application and/or have used / installed the hanger type w/ clips, I would sincerely appreciate your time in giving me your input. I want to get this right the first time. Thank You. Ray

Hatch also has egg crate foam on both sides which is triangular shaped (not shown) Looking on the right side panel in the picture, it's shaped like that... approx. 18 x 30"

 

[Chris1956]

What about contact cement? You could ask Weldwood if they think it a good application. You can get gallons and use a brush.

 

[Scott Danforth]

Your local Lowe's has 3M spray adhesive for a out $14 a can.

Dap weld wood contact cement is better, and one $20 can and a $4 roller will do your whole job

 

[rapa123]

What about contact cement? You could ask Weldwood if they think it a good application. You can get gallons and use a brush.

Thank you..... I've read that sometimes it works and sometimes not. I live in Michigan therefore, my boat has a change of climates which may alter good adhesion over time. Thanks again. Ray

 

[rapa123]

Your local Lowe's has 3M spray adhesive for a out $14 a can.

Dap weld wood contact cement is better, and one $20 can and a $4 roller will do your whole job

Thank you..... As for contact cement, I've read that sometimes it works and sometimes not. I live in Michigan therefore, my boat has a change of climates which may alter good adhesion over time. I'm familiar with 3M 77 and a few other's. The problem with those is sticking to the proper application they're intended for. For example; I've used 3M 77 for material coverings for my DJ equipment which works well but, climate, heat retention, weight comes into play. For that application, no problem. That's probably why the 3M 08090 is so expensive compared to the others. It has great heat retention so the adhesive doesn't get soft as quickly. I store my boat in an unheated pole barn through the winter months here in Michigan therefore, climate change plays a big role. That's one of the reasons I'm considering the use of pins and clips which may or may not need further adhesion. I don't know due to being oblivious about that application....... LOL. Thanks for your help. Ray

 

[Scott Danforth]

Lowe's has all 3...3M 77, 3M 90 and dap weld wood.

OEM boat carpet is held in with dap weld wood

Florida heat is worse than Michigan cold

 

[briangcc]

FWIW....I used the Gorrilla Glue brand available at Homely Despots. I have the same foam in my Chap. I can say it survived 1 season thus far - boat is shrink wrapped so I can't check on it to report any further results.

 

[alldodge]

Not a comment on adhesive but foam.
Doesn't take much to keep the foam up but regular egg create foam in a engine room gives me the willies. If it ever starts to burn it will go up like a match

Fire proof sound insulation like:
https://www.walmart.com/c/kp/fireproof-sound-insulation

 

[Scott06]

A few years back i did the same replacement . I bought the sound deadener from a place called Soumdproof Cow. They recommended using polyurethane PL adhesive that i bought at lowes or home depot…

 

[Chris1956]

What about latex indoor-outdoor carpet mastic? It holds carpet real well in my boat, in all kinds of wet, hot and cold weather.

 

[Scott06]

What about latex indoor-outdoor carpet mastic? It holds carpet real well in my boat, in all kinds of wet, hot and cold weather.

Would test this out first, would think it depends on what the sound deadener was made of. Soundproof Cow was adamant I use a polyurethane adhesive like PL otherwise it wouldn't bond to foam

 

[rapa123]

FWIW....I used the Gorrilla Glue brand available at Homely Despots. I have the same foam in my Chap. I can say it survived 1 season thus far - boat is shrink wrapped so I can't check on it to report any further results.

Thank you..... I'll look into it. Thanks again. Ray

 

[rapa123]

Not a comment on adhesive but foam.
Doesn't take much to keep the foam up but regular egg create foam in a engine room gives me the willies. If it ever starts to burn it will go up like a match

Fire proof sound insulation like:
https://www.walmart.com/c/kp/fireproof-sound-insulation

Thanks..... I really don't have any concerns at all about the egg crate foam that FourWinns Boat Manufacturer is using. They have been using this same egg crate foam since 2006 that I know of and still are. I'm comfortable knowing this company has done their homework in regards to using a fire proof foam. Thanks. Ray

 

[rapa123]

A few years back i did the same replacement . I bought the sound deadener from a place called Soumdproof Cow. They recommended using polyurethane PL adhesive that i bought at lowes or home depot…

Thanks.... I've used PL as an adhesive caulk many times which is a great adheisive. In fact, I like it better than Liquid Nails. It does have great holding power but, for my hatch it would be next to impossible for me to use due to being on the underside. I can't think of a way to keep the foam tight against the hatch for curing other than possibly using the insulation hangers w/ clips. If I could remove it and lay it upside down, I would probably run with it in a heartbeat. Thanks. Ray

 

[Scott06]

Thanks..... I really don't have any concerns at all about the egg crate foam that FourWinns Boat Manufacturer is using. They have been using this same egg crate foam since 2006 that I know of and still are. I'm comfortable knowing this company has done their homework in regards to using a fire proof foam. Thanks. Ray

Something else to consider regardless of adhesive choice you will need to compress the foam against the hatch for some time until the adhesive sets up, otherwise you may not get a great bond. Maybe you can cut plywood and put at an angle to close the cover onto to compress the sound deadener until the adhesive dries.

I couldn't believe how much difference this made on my old boat. You don't realize how much deadening the old material looses as it ages and degrades from heat.

If you are using what fourwinns uses it will have the correct fire rating

 

[Scott06]

Thanks.... I've used PL as an adhesive caulk many times which is a great adheisive. In fact, I like it better than Liquid Nails. It does have great holding power but, for my hatch it would be next to impossible for me to use due to being on the underside. I can't think of a way to keep the foam tight against the hatch for curing. If I could remove it and lay it upside down, I would probably run with it in a heartbeat. Thanks. Ray

we were typing at same time ...see post #15

 

[rapa123]

What about latex indoor-outdoor carpet mastic? It holds carpet real well in my boat, in all kinds of wet, hot and cold weather.

Thanks.... That's a good suggestion. I've used mastics on both carpet and kitchen countertop ceramic tile. I know on tile, is sucks / grabs to very well. With foam, I'm sure it would take some time to cure to stay in place. That's the bad thing about this install, it's on the underside of the hatch. Only other way would to possibly use insulation hangers w/ clips. I have no idea how well the hanger / clip type installation would work. Maybe someone will chime in that's went that route. I would have to think it's better than trying to spray everything. Thanks again. Ray

 

[rapa123]

Something else to consider regardless of adhesive choice you will need to compress the foam against the hatch for some time until the adhesive sets up, otherwise you may not get a great bond. Maybe you can cut plywood and put at an angle to close the cover onto to compress the sound deadener until the adhesive dries.

I couldn't believe how much difference this made on my old boat. You don't realize how much deadening the old material looses as it ages and degrades from heat.

If you are using what fourwinns uses it will have the correct fire rating

Thanks Scott.... That's a great idea. I've been trying to figure out a good way to keep the underside compressed for at least 24-48 hours. The two smaller side pieces wouldn't be as much of an issue. The 3M 08090 adhesive I mentioned that takes three coats per side is suppose to have enough initial tack but........man at approx. $400.00 it should. Question; Do you know of anyone that has used the hanger / clip installation like HERE? If that's a good solution over spraying adhesive, it may be the way to go. I would think PL would work great for that. Thanks again. Ray

 

[BRICH1260]

I suggest that you consider a closed cell type of insulation with a reflective outside layer. The eggshell insulation breaks down overtime and can clog your spark arrestor. It comes with adhesive already applied, just peel and stick.

 

[JASinIL2006]

How hard would it be to remove the hatch and invert it, so you can lay the foam into the adhesive and then possibly weight it down so it adheres? I think trying to get it to stick to the hatch while it's on the boat will be a bit challenging...