2006 Four Winns IO motor box/engine cover insulate

[ggundersen3]

I recently bought an immaculate 2006 Four Winns Horizon IO. The engine motor box cover is made of fiberglass. Is there a good product/material that I could insulate it with in the inside to reduce engine noise. My old 95 Horizon had a wooden engine cover with insulation on the inside and vinyl cushioning on outside, it was much quieter. Thanks for any suggestions.

 

[alldodge]

Search "marine engine room insulation", lots of stuff out there

 

[Scott06]

Would think there was insulation there originally. When mine started flaking off in the wind I got material from these guys-

Soundproofing & Acoustic Solutions | Soundproof Cow

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I don't recall exactly what material it was, had a phone convo with them about application and they offered a couple solutions of various cost ranges. Also were great recommending the correct adhesives