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Closed Cell Foam

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Closed cell foam does not have interconnected pores or cells like those that are found in open cell foam. Rather, in closed cell foam, the material’s cells are separate sealed elements placed in a compact configuration which results in dense and pressure resistant foam. Read More…

Closed Cell Foam Closed cell foam is a plastic that contains foam cells which are sealed, or "closed" and packed together. This foam is very dense and has high compressive strength. Because the cells are not broken in this foam and gas and liquid molecules do not freely travel from cell to cell, when exposed to heated gas the cells expand, filling the material and making closed cell foam an excellent heat insulator.
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Leading Manufacturers

Arlington, TX  |  800-777-7645

The applications for foam fabricating are only limited by one’s imagination; that is our slogan at American Excelsior. We are a foam supplier who offers many different foam cushions & foam padding for over a dozen industries.

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American Excelsior Company $$$

Painesville, OH  |  440-352-3434

For innovative and cost-effective fabricated foam packaging, American Foam Products should be your preferred vendor! We utilize a wide range of foams and other materials, including polyethylene, polyurethane, crosslink polyethylene, expanded polystyrene and plastic corrugated, as well as a broad range of manufacturing services and capabilities.

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American Foam Products $$$

Garland, TX  |  800-530-0091

Our highly advanced foam solution are ideal for a wide range of applications. We take your satisfaction very seriously which is why we offer custom services to accurately manufacture all of your products.

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Heubach Corporation $$$

Minneapolis, MN  |  952-345-0012

Flextech has been providing innovative solutions for our customer's challenging projects since 1992. Flextech objectives are to be fair and honest in all of dealings with our suppliers, customers, and employees.

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Flextech $$$

Newton Falls, OH  |  330-872-0995

At Luxaire, we realize the importance of customer care. No matter how challenging the project, we fabricate our foam with the utmost precision to get it right the first time. Available foams include rigid, semi-rigid, open-cell, and outdoor foam. We are capable of performing detailed fabrication with our cutting-edge CAD production equipment.

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Luxaire Cushion Company $$$

Madison, WI  |  800-989-3626

Wisconsin Foam is a foam supplier that serves a multitude of applications & industries with highly targeted, cost-effective precision flexible foam solutions— no matter the size or complexity.

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Wisconsin Foam Products, Inc. $$$

Evansville, IN  |  800-467-6730

Here at Thrust Industries we provide die cut foam that comes in a variety of shapes and configurations. We die cut foam from a number of materials including: urethane, PVC, polyester, neoprene, ether, cellular, volara, and much more.

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Thrust Industries $$$

Grand Rapids, MI  |  616-942-7780

Our long-term customers know they can trust us to find them the best deals on foam products. We believe that savings should be passed on. We are not in business simply to make profits, but to benefit our customers with high quality products and services.

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Design Converting, Inc. $$$
placeholder image American Excelsior Company American Foam Products Heubach Corporation Flextech Luxaire Cushion Company Wisconsin Foam Products, Inc. Thrust Industries Design Converting, Inc.

Closed cell foam has varying degrees of hardness, depending on the density of the cells it is composed of. It is commonly used in building applications for residential homes, industrial buildings, office buildings, schools, outdoor and marine environments. Foam mattresses, foam padding, foam cushions for couches and chairs, packaging materials, flotation devices and other nautical buoyancy applications are all examples of everyday uses for closed cell foam.

Foam can be fabricated into numerous shapes, sizes and colors according to custom requirements and applications. Foam is an extremely malleable material and is fairly easy to manage in terms of cutting and fabricating. Foam is typically described as either closed cell foam or open cell foam.

The fabrication of foam material is dependent on what type of foam is being used as the processes differ in terms of capabilities and suitability. Die cutting, contour cutting, hot wire cutting, foam felting and routing are all different methods of shaping a piece of foam into the required dimensions and shape. Heat, applied pressure or direct foam cutting are the most common methods of shaping foam.

Compared to open cell foam, closed cell foam has higher compressive strength and dimensional stability. The cells are not broken within the foam, but rather they exert pressure on each providing rigidity and making the material more resistant to air and water vapor leakages. These properties make closed cell foam a good material to use for heat insulation or outdoor insulation.

Its low moisture absorption add to its suitability for outdoor use. Unlike open cell foam which soaks up water due to its porosity, closed cell foam is almost impermeable to moisture, another reason why closed cell foam is suitable for buoyancy and flotation devices. Disadvantages to requiring closed cell foam instead of open cell foam include the higher material costs due to the increased denseness. The hardness of the foam is dependent on its density, and therefore for applications requiring sturdy foam, higher material costs may be required.

Foam also tends to break down over time, especially if it is exposed to frequent wear and tear. Therefore it will need to be replaced at some stage in almost every application. When determining the specifics of foam type for a certain application, variables to be considered are density, tensile strength, tear strength, thermal conductivity and elongation of the material.

Closed Cell Foam Informational Video