I think it is this I'm not keen on putting under scuttle as there will be water ingress. I layered the sound deadening mat to create a fall left and right as to avoid water pooling.
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Silent Coat Absorber 35mm Sheet
Silent Coat Sound Absorber 35 is a polyurethane foam material with a special formulation to achieve superb sound absorption and flexibility. The material is designed primarily to absorb unwanted high frequencies. The unique memory foam properties also make it great for sandwiching between...www.deadening.co.uk
@sgh Looks like 35mm Sound Buffler isn’t on the market anymore, how about this
Self-adhesive Acoustic Soundproofing Fire Proof CLASS O FOAM 6mm to 30mm | eBay UK
Manufactured by impregnating the open cell foam with fire resistant carbon solution and pressure dried, resulting in a Class '0' grade fire resistant acoustic foam which is able to withstand most ignition sources.
www.ebay.co.uk
I wouldn’t worry about water pooling you’d have to use a spirit level to park for that to happen and if it did it wouldn’t be any worse than a wet van.





















