The silicone gasket materials that are used in today’s food handling, automotive, medical, and construction industrial applications have been chosen for a reason! Silicone has many inherent qualities that make it an ideal choice for many purposes in all of these markets as well as others. Many custom silicone products are made to fulfill applications that require heat resistance, chemical resistance, low toxicity, engine and transmission oil, and much more. For example, the non-marking low toxicity properties of a silicone gasket make it ideal for use as food grade gasket material. Each unique application contains its own demands, limitations, and specifications regardless of the level of the requirements. The cost of silicone gasket fabrication is a factor that will vary and be unique to each industry using the product. With all the various industries that are in our highly advanced economy, there will always be a need for a soft rubber seal or gasket. Silicone rubber is the perfect material to fulfill this need.
Silicone CG Gray – 50A
Silicone CG Gray – 50A
- Demonstrates an excellent resistance to fungus
- Can be used outdoors thanks to UV and Ozone resistance
- Silicone sheet material is popular for use in laboratory settings
- Rolls come with a slight color variation that goes from lighter to darker gray
Material for Seals and Gaskets: Sheet rubber is regularly used to make different types of seals and gaskets for a variety of uses. This silicone (50 durometer) is available for custom fabrication if needed. Due to it’s lower durometer rating, this silicone sheet material is easier to cut. Fabrication options are available in hand cutting, die cutting, laser cutting, or water-jet cutting. We encourage you to send us a drawing, or blueprint so that we may be able to quoite the exact seal or gasket that you need.
Low Durometer Rubber: Durometer is the unit of measurement that is used to determine how flexible and resistant to physical indentation a particular rubber is. The higher the rating, the more physically durable the material will be. Since this commercial grade silicone rubber has a durometer of 50 Shore A, it is more on the flexible side. Silicone 50 durometer is the most popular of all silicones, due to its economical cost and availability in short lengths.
Sheet silicone is used to manufacture the various seals and gaskets needed in the food industry. The elastomer is perfect for this use because it has very low toxicity and odor, is a non-marking material, soft enough to be manipulated into various custom silicone products, and can withstand a wide range of temperatures. The US Food and Drug Administration (FDA) strictly inspect the type of silicone gasket material before it is approved for use as a food grade gasket material.
In addition to food-related uses, custom silicone products are also widely used in the automotive industry for engines, transmissions, and other applications like sealants for airbags. The medical and scientific fields also use silicone gasket products for a whole range of equipment. It is highly useful for that industry because it does not leave marks on other surfaces and is very low in toxicity. In fact, there are many overlaps and parallels between the seal and gasket requirements of the food industry and the medical community.
Silicone CG Black – 50A
- A hard to find black silicone sheet rubber
- Resistant to fungus and some chemicals
- This black silicone material can resist UV and ozone
- Stocked in popular gauges: 1/32″, 1/16″, 1/8″, and 1/4″
- Flexible silicone sheets are meant for commercial grade applications
Flexible Rubber Sheet: This silicone (50 Durometer) elastomer is well suited for use in applications that require a more flexible material instead of a rigid one. A low durometer rating indicates that the rubber is less resistant to physical indentation, but much more pliable for the purposes of flexibility. Additionally, a lower durometer elastomer is less dense and more pliable that has a high durometer.
High Temperature Material: Silicone rubber is the go-to elastomer for any applications that involve extreme temperatures. This particular black silicone sheet has an operating temperature range of -103 F to 450 F. You can employ this flexible silicone sheet in very cold settings and very hot settings without having to worry about it suffering from immediate damage.
A silicone gasket can be made into many different types of specialized products that can include:
- Solid Silicone Rubber: These are engineered using water jet cutting or die cutting fabrication methods. Commonly used on metal or rigid enclosures that require higher closure forces, this product will be used with a suitable bolt pattern to ensure that the gasket is properly and firmly compressed. These are ideal for water sealing and submersion applications. Hence, they are perfect for use as food grade gasket material. Solid silicone rubbers are available in a wide variety of gauges and widths, which allows for wide variety of sizes in fabricated parts.
- Open Cell: These products are cellular and soft in comparison to solid rubber products. The open cell structure of sponge makes this an excellent option for environmental seals since it inherently will perform well within a wide temperature range and is resistant to UV rays. This type of silicone gasket is ideal for use as a soft rubber seal when low closure forces are needed.
- Closed Cell: While these are closely related to open cell their main differentiation between the two is the smoother surfaces that can be procured from fabricated parts. Closed cell silicone items are far more popular and more readily available.
- Injection Molded Gaskets: Molded seals with round, three dimensional, or custom cross-sections can be required for heavy wash down or water submersion applications. Molding allows for three dimensional custom silicone products to be made without compromising their integrity. (By the way, this is currently out of Rubber-Cal’s expertise!)
The fabrication techniques for silicone gasket items and their related costs can help to determine which type of product and design of gasket would best suit your application’s needs. The properties of silicone allow for these gaskets to take on many forms such as a soft rubber seal, horseshoe shape, and o-ring shape. The choice really is up to you. Our custom silicone products are highly recommended for many different gasket and sealing purposes across a wide variety of industries within an affordable price range. It is ideal for use as an automotive, medical, or food grade gasket material. The next time you are looking into a silicone gasket make sure to keep in mind your application’s demands, limitations, and specifications since these will be the foundation for many of the decisions made as you move forward!
Silicone CG Red/Orange – 50A
- Popular Silicone 50 Shore A
- Resistant to UV rays and ozone
- Exhibits a moderate level of chemical resistance
- Available for custom fabrication into seals and gaskets
- Rolls available in either 25ft or 50ft lengths depending on thickness
- This red silicone sheet rubber is available in a wide variety of thicknesses
High Temperature Sheet Material: This would not be a proper silicone sheet rubber if it were not able to endure harsh temperature conditions. You can expose this red silicone material to temperatures that reach as high as 450 F. At the same time, it is also able to operate in extremely cold temperatures, with a specific minimum temperature limit of -103 F.
50 Durometer Rubber: In order to help people determine how hard and physically durable an elastomer is against physical indentation, sheet rubber is often accompanied by a durometer rating. The higher the rating, the more resistant the body of the rubber will be against physically demanding objects. As this rating goes lower, the rubber becomes more flexible and pliable. A durometer rating of Silicone 50 shore indicates that the rubber is not that hard and is more pliable in nature. That is why we recommend this silicone 50 shore for commercial grade applications where physical properties are not crucial to have.
