When it comes to survival preparedness, every item in your kit must serve multiple functions. Foam may not be the first material that comes to mind, but both open-cell and closed-cell foams offer a range of practical applications that make them invaluable for survival situations. Let’s explore tips for using foam for survival supplies, which types are best to have on hand, and how foam can be used in emergencies.
Why Foam Is Useful in a Survival Gear Kit
Foam’s versatility, lightweight nature, and ability to provide insulation, cushioning, and structural support make it an essential material for survival gear. Whether you’re facing extreme weather, crafting emergency repairs, or needing additional safety, foam is a resourceful tool.
Key properties that make foam useful include:
- Insulation: Foam can help retain heat, making it useful in cold-weather survival situations.
- Impact Absorption: Foam’s shock-absorbing qualities provide protection for fragile items and cushioning for your body.
- Water Resistance: Closed cell foam, in particular, repels moisture, making it effective in damp or wet environments.
- Lightweight Flexibility: Foam is easy to carry and can be cut, shaped, and modified on the spot to suit your needs.
With such a broad range of functions, foam can be adapted for everything from first aid to makeshift shelters.
What Type of Foam Is Good To Have in a Survival Situation?
Not all foam is created equal, and understanding the difference between open-cell and closed-cell foam will help you choose the right material for survival applications.
- Open-Cell Foam: This type of foam has an interconnected cellular structure that allows air to pass through. It’s breathable, flexible, and excellent for soundproofing, cushioning, and insulation in dry conditions.
o Best Uses: Padding for makeshift splints, insulating air gaps in emergency shelters, and shock absorption for gear. - Closed Cell Foam: Unlike open cell foam, closed cell foam is denser, with cells that are packed tightly together to prevent water absorption. It offers superior durability, water resistance, and insulation.
o Best Uses: Waterproof padding, flotation devices, thermal insulation, and structural support.
Including a combination of both types of foam in your survival gear will give you the flexibility to tackle a range of challenges.

How To Use Foam in an Emergency
In a survival situation, improvisation is key. Foam’s adaptability makes it a practical solution for a wide range of emergency needs. Below are some creative ways to use foam in survival scenarios:
- Makeshift Repairs or Crafting
• Sealing Cracks and Gaps: Use closed cell foam to block drafts or seal cracks in makeshift shelters, tents, or windows to keep out the elements.
• DIY Tools or Gear: Open-cell foam can be cut and shaped to create grips for tools, handles, or cushioning for equipment. - Insulation
• Keeping Warm: Closed-cell foam can be used to line the interior of a survival shelter or sleeping bag to trap body heat and reduce heat loss. Foam pads are particularly useful as ground insulation to prevent cold from seeping up from the ground during the night.
• Food or Water Insulation: Create insulated pouches or containers to keep food and water at stable temperatures. - Cushioning, Safety, and Padding
• First Aid Applications: Open-cell foam can serve as padding for makeshift splints, braces, or crutches in case of injury.
• Impact Protection: Use foam to cushion fragile items, such as electronics or emergency supplies, during transport. You can also use it to pad sharp edges in a shelter or vehicle to reduce injury risk.
• Body Protection: Closed-cell foam can be repurposed as knee pads, seat cushions, or even flotation aids if you’re crossing a body of water. - Water Resistance and Flotation
• Flotation Devices: Because closed-cell foam doesn’t absorb water, it can be used to create emergency flotation devices. For instance, foam panels can be tied together to form a raft or life preserver.
• Waterproof Backing: Line the interior of backpacks or survival kits with closed-cell foam to protect supplies from moisture.
Shop Foam by Mail for Foam for Survival Supplies
In a survival situation, every item in your gear should offer maximum utility—and foam is no exception. Whether you’re using it for insulation, safety, repair, or flotation, both open-cell and closed-cell foam provide practical, life-saving benefits. By including foam in your emergency kit, you’ll be better prepared to face whatever challenges come your way.
For a wide range of foam types that can enhance your survival supplies, check out our selection of high-quality, customizable foam products. Our open-cell foams and closed-cell foams are the perfect additions to your survival kits. With the right materials on hand, you’ll have the tools you need to stay safe, comfortable, and resourceful in any survival scenario.
Hello
are there fire retardants in the open cell foam you sell ?
these are known to prevent the foam from breathing…
thanks
Some of our foams contain flame retardants. Our datasheets show whether or not the foam contains flame retardants.