Can this be used on a engine cover/dog house on a inboard outboard boat

I can't speak for your I/O boat but I used it in my van's engine cover which gets really hot and have had no problem what so ever. Good luck.

Is there enough material to cover two doors

Not unless you have really small doors. The better way to do it is with the "door kit". It consists of 4pcs of 12"x36" and is made for 2 doors. What ever you don't use on the inner door skin you should use on the outer door skin. And don't forget directly behind the speaker. I used 36 sq ft on a 04 f150 with the doors and rear wall including back floor where the dual subs are.

how many sheet would you use for 4 car speaker?

Hi Thank you for the question, and it really depends on how much you want to spend.For example, "I" would use just one of these 32x18 sheets for one door. Applying to the outer door inner panel as well as the door panel for the speaker.This way you will not loose your music to the car next to you, or entertaining everybody you pass.You may look into getting 4 boxes of these and do that, or you can get (2) two door speaker kits (12X12).I would recommend the full coverage for medium to high powered audio systems. Especially if your vehicle is Honda , Toyota, or where the sheet metal is super thin.Thank you for choosing the Wires Zone.

How does it hold up when it gets wet regularly? My jeep leaks...

Water does not effect dynamat at all. Once installed it sticks very well to the metal surface of your vehicle. Just make sure the edges are pressed down well so water can’t seep under it and start the rusting process on your Jeep. Clean the surface well before putting the Dynamat down so it sticks.

Dynamat Xtreme Sound Deadening Car Insulation Single Sheet Hex Pack

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Rp1747909

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Description

🔇 Drive Quiet, Live Loud: The Ultimate Sound Shield for Your Ride

HEAT VIBRATION BARRIER - Keeps your ride cooler and quieter by blocking unwanted heat and resonance.
MADE IN THE USA BUILT TO LAST - Crafted with premium butyl rubber for long-lasting adhesion and soundproofing.
PRECISION FIT EFFORTLESS INSTALL - Peel-and-stick flexibility molds perfectly to doors, floors, hoods, and trunks.
SILENCE THE ROAD AMPLIFY YOUR DRIVE - Cut road noise and vibrations by half for a serene cabin experience.
TRUSTED BY PROS LOVED BY ENTHUSIASTS - Preferred by top custom builders since 1989 for unmatched durability and performance.

Dynamat Xtreme is a premium 18"x32" self-adhesive sound deadening sheet that reduces road noise, heat, and vibrations by up to 50%. Made from durable butyl rubber and trusted by automotive pros since 1989, it offers a thin, flexible design for easy installation on floors, doors, hoods, and trunks—transforming your vehicle into a quieter, cooler, and more comfortable space.

Specifications

ASIN	B00020CAVA
Best Sellers Rank	#9,348 in Automotive ( See Top 100 in Automotive ) #18 in Automobile Insulation
Brand	Dynamat
Brand Name	Dynamat
Coverage	4.0 ft.² (0.37 m²)
Customer Reviews	4.6 out of 5 stars 484 Reviews
Global Trade Identification Number	00769103104250
Included Components	Pads
Item Dimensions L x W	32"L x 18"W
Item Thickness	0.2 Centimeters
Item Weight	1 Pounds
Manufacturer	Dynamat
Manufacturer Part Number	10425
Material	Rubber
Material Type	Rubber
Model Number	10425
Product Dimensions	32"L x 18"W
Recommended Uses For Product	Enhancing sound quality in automobiles
UPC	769103104250
Unit Count	1.0 Count

Reviews

E**S

17.02.2026

W**N

2.09.2017

K**R

6.12.2025

L**E

30.03.2010

J**N

18.07.2024

J**E

16.04.2017

A**R

16.03.2025

N**S

11.12.2025

T**B

20.05.2024

F**U

4.11.2023

A**R

5.05.2016

A**R

10.06.2016

D**E

22.03.2024

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Rp1747909

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In stock

Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Indonesia.

Secure transaction

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Dynamat Xtreme Sound Deadening Car Insulation Single Sheet Hex Pack 10425 – Noise Dampening for Floor, Doors, Hood or Trunk – Easy Self Adhesive Install – Made in USA – 1 Sheet 18”x32”, 4 sq ft

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