Different Types of Foam for Cases

Standard Polyurethane Foam

Overview: Polyurethane foam is the most common type of foam used in cases. When a case says it comes stock with foam this is the type of foam it comes with. The foam is soft enough to provide flexibility for items, but also dense enough to provide cushion for even the heaviest of items.

Description: Polyurethane is similar to a sponge in the fact that it can be squished with your hand and if exposed to water it will absorb.

Technical: Polyurethane is open cell which means air and water can flow freely throughout the foam. The material weighs 1.6 lbs per cubic foot.

High-Density Polyurethane Foam

Overview: High Density polyurethane foam is similar to our standard polyurethane, but more dense which means it takes more pressure to compress the same amount. High density foam is great when the job requires a sponge like material, but also needs more structural support. The material can support heavier items, and also maintains the same shape when a large volume of foam is removed from the insert.

Description: High density polyurethane foam is similar to a sponge, but more dense. It will also absorb water.

Technical: High density polyurethane is open cell which means air and water can flow freely throughout the foam. The material weighs 1.8 lbs per cubic foot.

Polyethylene Foam

Overview: Polyethylene foam is the most widely used foam for heavy parts and often used in the military because of its durability. Polyethylene is made to hold objects of considerable weight and is also commonly used when the application requires a material that can be wiped down.

Description: Polyethylene is similar to a foam noodle that can be found in a swimming pool or a boogie board found at the beach. Since it's closed cell it will not absorb water.

Technical: Polyethylene is closed cell which means air cannot move freely throughout the foam. The material weighs 2.2 lbs per cubic foot.

Polyethylene Anti-Static Foam

Overview: Anti-Static foam is the used mostly for electronic parts that may be damaged by ambient static electricity. It is often used in the electronics industry because of its ability to negate electricity that may shock your item. It's another layer of protection for electronics. Polyethylene Anti-Stat foam is pink, can hold objects of considerable weight, and can be wiped down without damage.

Description: This foam is similar to a foam noodle that can be found in a swimming pool or a boogie board found at the beach. Since it's closed cell it will not absorb water.

Technical: Polyethylene Anti-Stat foam is closed cell which means air cannot move freely throughout the foam. The material weighs 2.2 lbs per cubic foot.