In-Stock Materials

We stock a diverse line of foam products

Keystone Foam offers over 50 types of foam variations in house to meet any industry need. From lightweight protection to thermal insulation, our customizable foam solutions are ideal for packaging, medical, acoustical and consumer applications. Here are our core in-stock foam materials.

Crosslinked Polyethylene Foam (XLPE)

Crosslinked polyethylene (XLPE) foam is a high-performance, chemically cross-linked closed-cell foam known for its fine cell structure and smooth surface. XLPE has a broad density range, providing flexibility in product choice based on different applications. Its qualities include water resistance, thermal insulation, shock absorption, and excellent chemical resistance. It is commonly used in packaging, insulation, and sports pads, as well as for medical applications due to its non-toxic nature. Variations include different colors and degrees of firmness, with higher densities offering increased durability and rigidity.

Expanded Polyethylene (EPE)

Expanded polyethylene (EPE) foam is a lightweight, semi-rigid, and flexible material with excellent cushioning properties. It has an open-cell structure that provides good shock absorption and moisture resistance, and is available in varying densities. Typical uses for EPE include protective packaging, flotation devices, and insulation. EPE foam is cost-effective and easy to fabricate, making it ideal for applications requiring flexible yet durable padding solutions.

Ethylene-Vinyl Acetate (EVA)

Ethylene-vinyl acetate (EVA) foam is a versatile closed-cell material characterized by its soft, rubber-like texture and excellent flexibility. With varying densities and formulations, EVA is used in diverse applications such as footwear, sports equipment, and packaging due to its impact absorption and durability. Higher densities increase stiffness, making it suitable for custom shapes and heavy-duty uses. EVA’s chemical resistance, lightweight nature, and ability to retain its cushioning properties make it a popular choice across many industries.

Expanded Polypropylene (EPP)

Expanded polypropylene (EPP) foam is a closed-cell bead foam known for its remarkable durability, high energy absorption, and lightweight properties. EPP has different densities, providing varying levels of stiffness and resilience. It is frequently used in automotive components, packaging, and protective gear, thanks to its excellent shock absorption and resilience. EPP foam’s ability to withstand multiple impacts without deformation makes it ideal for applications where repeated stress is common.

Expanded Polystyrene (EPS)

Expanded polystyrene (EPS) foam is a lightweight closed-cell material, commonly recognized for its rigidity and excellent thermal insulation properties. It is available in a range of densities, with higher densities providing greater strength. EPS is used in products like packaging materials, insulation panels, and disposable food containers. Its low cost and versatility make it suitable for a variety of applications, particularly where structural integrity and light weight are priorities.

Low Abrasion Foam

Low abrasion foam is a soft, non-abrasive material designed to minimize wear and scratching on sensitive surfaces. It has a smooth, gentle texture, often seen in packaging and industrial uses where surface protection is crucial. The foam is available in multiple densities to accommodate different cushioning needs, with lower densities providing softer protection and higher densities adding more structure. It is commonly used for automotive interior parts, delicate equipment packaging, and surfaces needing extra care.

Latex Foam

Latex foam is a natural, open-cell foam known for its elasticity, breathability, and excellent comfort. It is typically derived from natural rubber, though synthetic variations exist. Latex foam comes in different densities, which affect its firmness and support characteristics. It is commonly used in mattresses, pillows, and furniture cushions due to its supportive yet responsive qualities. Natural latex is highly durable, biodegradable, and resistant to mold and dust mites, making it a popular choice for hypoallergenic applications.

Neoprene Foam

Neoprene foam is a closed-cell synthetic rubber known for its excellent thermal and moisture resistance, making it suitable for a wide range of applications. Available in various densities, neoprene can range from soft and pliable to firm and supportive. Its properties include resistance to water, chemicals, and weather conditions, which makes it ideal for wetsuits, gaskets, and orthopedic supports. Neoprene’s ability to insulate and cushion, along with its durability, makes it a versatile choice for numerous industrial and recreational uses.

Pink Anti-Stat Foam

Pink anti-static foam is a polyethylene-based closed-cell foam, specifically designed to prevent electrostatic discharge (ESD). It is available in a range of densities and is typically colored pink to indicate its anti-static properties. This foam is used primarily in the electronics industry for packaging and transporting sensitive electronic components, offering both cushioning and static protection. The foam dissipates static charges, ensuring that delicate parts are not damaged during handling or shipment.

Polyurethane Foam (PU)

Polyurethane (PU) foam is an open-cell, versatile material that can be formulated into various densities and levels of firmness. It is widely used in furniture, mattresses, packaging, and automotive seating due to its cushioning properties. PU foam can be either flexible or rigid, with higher densities providing more structural integrity. It is also known for its sound and thermal insulation qualities, making it suitable for diverse applications ranging from comfort to insulation.

Polyethylene Foam (PE)

Polyethylene foam (PE) is a lightweight, closed-cell foam known for its excellent strength, resilience, and buoyancy. It is available in a range of densities, offering flexibility in both rigid and soft forms. PE foam is commonly used in packaging, insulation, flotation devices, and sports equipment due to its shock-absorbing properties and resistance to moisture and chemicals. Its versatility and durability make it suitable for a wide range of industrial and commercial applications.

Polyvinyl Chloride (PVC) Foam

Polyvinyl chloride (PVC) foam is a closed-cell foam known for its durability, flame resistance, and excellent chemical stability. It is often used in marine applications, building insulation, and signage, as it combines lightweight characteristics with high structural integrity. Available in a range of densities, PVC foam can be adapted for both rigid and flexible uses, providing excellent durability for outdoor or industrial environments.

Viscoelastic (Visco) Foam

Viscoelastic, or memory foam, is a polyurethane-based open-cell foam known for its pressure-relieving properties and slow recovery time. It conforms to the shape of the body, providing support and comfort. Available in different densities, Visco foam is commonly used in mattresses, pillows, and cushioning products. Its temperature-sensitive nature allows it to mold to the body’s contours, making it highly suitable for medical and ergonomic applications.

Viscoelastic Foam

Viscoelastic foam, also known as memory foam, is an open-cell polyurethane foam with high-density formulations, designed to provide pressure relief and contour to the body. It is used in a variety of applications, including bedding, seating, and medical products, to improve comfort and support. Its slow recovery time and ability to distribute weight evenly make it ideal for reducing pressure points, which is particularly beneficial in healthcare settings.

Viscoelastic (Visco) Gel

Viscoelastic Gel is a type of gel-infused foam that combines the conforming nature of memory foam with the cooling properties of gel. It offers a more balanced comfort by providing pressure relief while helping to dissipate heat. This material is often used in medical cushioning, mattresses, and seating pads to enhance comfort. The gel component reduces heat retention, providing a cooler sleep or seating experience compared to traditional memory foam.

Viscoelastic Polyurethane Gel

Viscoelastic polyurethane gel is a hybrid material that combines memory foam properties with the characteristics of gel. It offers enhanced pressure relief, support, and temperature regulation, making it ideal for mattresses, seat cushions, and medical products. The gel component helps dissipate heat, offering a cooler and more comfortable experience than traditional memory foam. This material is typically used where both comfort and cooling are priorities, such as in high-end mattresses and medical cushions.

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