custom foam gaskets

Custom Foam Gaskets: Your Complete Guide to Materials, Applications and Benefits

How Custom Foam Gaskets Work: Uses, Applications, and Material Selection

Foam gaskets are essential components in a wide range of industries, providing crucial functions like gasketing, cushioning, sealing, and noise reduction. Whether you need to protect sensitive electronics, prevent leaks in an industrial setting, or dampen vibrations in an automotive application, selecting the right foam gasket material is key. This guide will help you understand the different types of foam, their unique benefits, and common applications.

Open-Cell vs. Closed-Cell Foam

Foam gaskets are broadly categorized into two types: open-cell and closed-cell.

  • Open-cell foam contains interconnected pockets of air, which allows it to be easily compressed. This property makes it ideal for shock absorption and vibration dampening. It is not suitable for sealing against liquids or gases, as the open structure allows for fluid passage.
  • Closed-cell foam consists of tiny, sealed pockets that do not allow air or moisture to pass through. This makes it an excellent choice for creating environmental seals that protect against elements like moisture, sunlight, and dust.

Common Foam Gasket Materials and Their Uses

Here’s a breakdown of three of the most popular foam gasket materials and their specific applications.

Silicone Foam Gaskets

Silicone foam is a high-performance material known for its exceptional versatility. It can withstand a wide range of temperatures, making it a reliable choice for extreme environments. Silicone also has excellent electrical insulation and flame-retardant properties, making it a go-to for sensitive applications.

  • Key Applications: Electronics, aerospace, medical devices, and high-temperature sealing.

EPDM Foam Gaskets

EPDM (Ethylene Propylene Diene Monomer) foam is a highly versatile and durable material. It is well-regarded for its resistance to hot temperatures, water, and UV radiation, making it an excellent choice for outdoor or marine applications. EPDM foam is also effective at blocking EMI (Electromagnetic Interference), which is crucial for protecting sensitive electronic components.

  • Key Applications: Automotive seals, electrical enclosures, and outdoor lighting fixtures.

Neoprene Foam Gaskets

Closed-cell Neoprene foam provides a robust and durable seal for a variety of components. It is highly resistant to UV rays, extreme temperatures (both hot and cold), and many chemicals. This makes it a great choice for applications that require a long-lasting, reliable seal. Furthermore, Neoprene is an excellent material for absorbing sound and vibration.

  • Key Applications: HVAC systems, industrial equipment, and electrical cabinets.

Why Choose SRP for Your Foam Gasket Needs?

At SRP (Standard Rubber Products), we understand that every application is unique. Our team of experts provides design assistance and prototyping services to ensure you get the perfect solution for your specific needs. With our U.S.-based manufacturing facility, we are committed to delivering high-quality, custom-engineered foam gaskets that meet your exact specifications. We’re a preferred supplier of Rubberlite and Rogers Corporation ensuring you get access to premium materials that perform. 

To get a quote, fill out the form or call us — you’ll have an answer in less than one business day.