What is density of 1/2 thick: soft medium or hard. Can it support ~7 to 10 lbs , on 12x12x 2". With no more than ~10% or ~20% lose in in thickness?

It is soft. Probably fine for 7-10 pounds.

im trying to put this under a 10 gallon aquarium, does anyone have any experience? about 100LB does it help spread out the weight at all?

I put this under my 55 gallon hermit crab tank for some extra support. Far exceeds 100lbs in weight, and so far so good.

Can i use this foam to replace the original foam on lower heater duct (car interior), since the original is worn? thank you.

I am thinking it would not be suitable. It's really more designed to pad things, like put into the bottom of a toolbox drawer to stop tools from rattling around. I used it on some bass amplifiers, to keep the feet on the amp from digging into the vinyl covering on the cabinets. It also has open "grooves" in the material (alternating between the padded parts) so it would not insulate very well I would think. I would think dedicated car weatherstripping would be far better for your application

Will this foam insulate? I want to make a soft sided cooler.

Artilife closed foam padding is made of EPDM, this material is specifically made and designed to cushioning,sealing,shock absorption,sound insulation,sound reduction and heat insulation,so Artilife foam is insulate.

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🎨 Unleash Your Creativity with Every Cut!

CRAFT WITH EASE - Easily cut to any shape or size for your creative needs.
DURABLE RELIABLE - Made from EPDM for long-lasting performance.
TRANSFORM YOUR SPACE - Perfect for soundproofing vehicles and studios.
ULTIMATE VERSATILITY - Ideal for DIY projects, cosplay, and more.
SHOCK ABSORPTION CHAMPION - Designed for cushioning and sealing in high-traffic areas.

The Artilife Closed Cell Sponge Foam Sheet Roll is a versatile 1/2" thick foam sheet measuring 13" wide and 60" long, designed for soundproofing, cushioning, and DIY projects. Made from durable EPDM material, it’s perfect for a variety of applications including cosplay, sealing, and shock absorption, making it an essential tool for both professionals and hobbyists.

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