raz88 97 Posted January 8, 2023 Share Posted January 8, 2023 Needing to replace a sheet of insulation under my engine box lid which is crumbly and horrible. Is there a go-to product people would recommend for this? I see burnsco have this - don't know if anyone has tried it out? https://www.burnsco.co.nz/softsound-engine-insulation?gclid=Cj0KCQiAzeSdBhC4ARIsACj36uFE2MErP1wzrrM1b-MuRwm4UQzXOR6tCN-rkXHjKNhTTnsbK5rnMdsaAtLsEALw_wcB Quote Link to post Share on other sites
ynot 52 Posted January 8, 2023 Share Posted January 8, 2023 Forman insulation used to have the good sh*t.... Heavy layer in the middle. Not cheap... But 2 Quote Link to post Share on other sites
raz88 97 Posted January 8, 2023 Author Share Posted January 8, 2023 Thanks T. Will give them a ring tomorrow. Although if there's a lightweight version which does close to the same job it would be preferable. Quote Link to post Share on other sites
LBD 160 Posted January 8, 2023 Share Posted January 8, 2023 From many, many years in the industry I can say one thing for certain... the performance of a sound dampening material is proportional to the weight of the material... the heavier the better the performance, and usually the higher the cost. There are also a couple of other areas to look at.... 1) Air intake noise... a good intake filter will dampen much intake and turbo noise. 2) if there are flat metal surfaces in the machinery space like the top of a fuel tank that are above the fuel level... consider adding a little stick on accoustic dampening material... this can also make a huge noise reduction... 2 Quote Link to post Share on other sites
AndyD 2 Posted January 8, 2023 Share Posted January 8, 2023 Have not used personally in boats - BUT - Dynamat - is what is the goto in automotive and audio for sound deadening. They do a marine engine housing version - and are stocked in nz .. made worth a google on that? https://www.dynamat.com/products/hoodliner/?tab=marine-rv https://www.marine-deals.co.nz/shop-by-brand/dynamat 1 Quote Link to post Share on other sites
waikiore 438 Posted January 9, 2023 Share Posted January 9, 2023 Vybar seems to be the best currently, thinner and doesnt rot like the old stuff, try Sopac 1 1 Quote Link to post Share on other sites
alibaba 80 Posted January 29, 2023 Share Posted January 29, 2023 I also have to do this job, the cork insulation layer is now brittle and crumbling. Not a problem, I just love contorting myself into interesting shapes to get the stuff out - not! However, looking up sound insulation is REALLY confusing. There are so many different types around, how do you choose the best for the job? I suppose that I'm going to go with 'you get what you pay for', and not to get a cheap version, but- the not cheap versions seem to range from 130 to as much as $500 per square meter. Does it make a difference,or do I just match the thickness and appearance of the old stuff?? Quote Link to post Share on other sites
raz88 97 Posted January 29, 2023 Author Share Posted January 29, 2023 I found the same, however it turned out not too hard to make a decision in the end. Vybar sounded good, but found sopac so hard to deal with that I gave up. Foreman insulation have been bought by flectures and seem geared up to sell house lots of batts but couldn't figure out how to sell me 1 sheet of marine insulation. Had poor feedback/reviews on the burnsco product. Had a quick look into the dynamat suggested above. it seemed that for marine engine bay installations you should use two of their products laid over each other, which seemed more complex to install and more expensive. Which really only left vetus from lusty & blundell/marine deals. Looked similar to what i had in the past, had good reviews, and a couple of options on where to buy (with it in stock). So that's what I bought. Ended up with 35mm promech. Was easy to install (on my simple, flat surfaced installation), and seems to work well. Was about $150 for a 600x1m sheet. 1 Quote Link to post Share on other sites
alibaba 80 Posted January 29, 2023 Share Posted January 29, 2023 Thanks Raz, that's exactly the info I needed - you saved me hours of research. Vetus looks pretty sound [ pun intended!] 1 Quote Link to post Share on other sites
Black Panther 1,674 Posted January 29, 2023 Share Posted January 29, 2023 What adhesive raz! Quote Link to post Share on other sites
ex Elly 217 Posted January 29, 2023 Share Posted January 29, 2023 Self adhesive backing. Comes in 20/30/40 mm thickness. https://www.marine-deals.co.nz/sound-insulation/vetus-sonitech-light-sound-insulation-sheet-20mm-white-facing Quote Link to post Share on other sites
raz88 97 Posted January 30, 2023 Author Share Posted January 30, 2023 Yep it's got a self adhesive backing. I also went around the edges with this stuff. https://www.marine-deals.co.nz/vetus-self-adhesive-tape-roll-aluminium-30m?q=Vetus+tape&h=14 Quote Link to post Share on other sites
Bad Kitty 281 Posted January 30, 2023 Share Posted January 30, 2023 These guys for Vybar. Engine Room Soundproofing | Technical Equipment Supplies Quote Link to post Share on other sites
Bad Kitty 281 Posted January 30, 2023 Share Posted January 30, 2023 Just now, Bad Kitty said: These guys for Vybar. Engine Room Soundproofing | Technical Equipment Supplies Much better than the Forman stuff, which takes a lot of work to clean up when it craps out. Ask me how I know! Quote Link to post Share on other sites
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