Bellofram Silicones extruded solid silicone cords and tubes can be used to make gaskets, seals and O-rings. They are also used as grips and handles to ensure personnel protection on hoses and nozzles. These parts can be produce up to 2.50”, and they make excellent bumpers and guards for equipment protection. Our mixing and compounding abilities allow us to produce product in hardness ranges from 20 to 80 shore “A” durometer, using economical commercial grade or high strength specification grade materials. Contact us today for a sample or a quote.
If aesthetics and appearance are a concern, try our translucent extrusions. They almost disappear in use. This material can be produce in extruded profiles, rectangles, cords, tubes.. almost any shape that you can imagine. Our formulations allow product from 20 to 80 shore “A” durometer, and grades from economical commercial grade to highly tear resistant specification grade. Most commercial and military specification grades are available.
Bellofram Silicone sponge tubing is an excellent insulator for piping insulation. Its high temperature rating of 450F allows it to be used in areas where elastomeric and plastic based insulation tubing fail. At temperatures up to 212F, it has a useful life of 10 to 20 years. Tooling is available for most ID and OD combinations. It’s tough skin resists nicks and it insulating values keep in the heat or cold, great for personnel protection. The product comes in 5 hardness ranges of standard silicone sponge and 3 hardness ranges of silicone sponge with fire retardant additive. Many colors are available in addition to our standard gray and orange/red.
Our custom formulations and tool making capabilities allow us to produce solid silicone extrusions in almost limitless shapes and hardnessess. We have materials to withstand 100,000 flexes, or commercial grade silicones that will be worry free in less demanding environments. Bellofram Silicones are very resistant to compression set, high and low temperatures. Match one of our 20 to 80 durometer shore “A” compounds with a profile of your design to find a solution to your sealing problems. Multiple extrusion lines allow us to produce small quantities as well as large quantities. Call us today for a quote or a sample.
Rectangular silicone sponge extrusions are our second most popular item. Size capabilities range from .125” x .125” to 2” x 2.50”. Extrusion dies are available for most sizes. We have 5 hardness ranges from ASTM D-1056-2D1 through 2D5, as well as three hardnesses of silicone sponge with fire retardant additive. In addition to standard red and gray colors, we can supply almost any color you require.
Bellofram Silicones is one of a very small number of molded sponge rubber manufacturers.
Our silicone molding department produces closed cell sponge in compression deflection range
from 2 to 27 PSI. Skin on all surfaces enhances cleanability and resist incursions of
contaminants. Solid silicone construction is available in 20 to 80 shore “A” durometer, and
in material choices from economical commercial grade to high performance low temperature,
flex and tear resistant specification grades. These products can be tinted to most colors.
Organic elastomer choices include Neoprene, Nitrile, FKM, EPDM, and a wide range of others.
Our in house mixing of custom formulations allow us to produce materials to the ASTM, SAE,
MIL-STD, and other military and industrial specifications, and custom compounds yields your
choice of open or closed cell construction. Contact us today for a quote or samples.
BELLOFOAM™ silicone sponge sheets are the lightest high consistency silicone rubber sheets on the market. These sheets contain truly closed cells, as determined by the stringent ASTM D 1056 water absorption under vacuum method, which eliminates any wicking. The formulation and construction allows the material to operate in temperature environments of -103°F to +450°F, and its recovery after compression is outstanding. The sheets skived from buns can be supplied from 0.125″ thickness to 2″ thickness, or the buns can be skived to sheets using your equipment. With two hardness versions of the standard sheet, one version with enhanced fire retardant additives, and one version of fluorosilicone, our sheets cover a wide range of demanding physical, temperature, and chemical environments. Why pay for the weight of press cured sheets when BELLOFOAM™sheets will address your sealing problems? Call for a quote or sample today.
Sometimes the simplest shape is the solution to your gasketing or sealing problems. Bellofram Silicones can produce silicone sponge cord in .062″ diameter up to 2.25″ diameter. Our in house mixing allows us to produce materials to all five hardness ranges of ASTM-D-1056, from the soft 2D1 to the extra firm 2D5. We are on the qualified products list for Boeing 1-23, and all three hardnesses of 1-60. We are able to produce product with a compression set value of 10%, and a wide range of colors are possible.
Bellofram Silicones extruded silicone sponge profiles are used when difficult sealing problems require a combination of complex gasket shapes and extreme flexibility. Our die making capabilities allow customers the capability to use complex geometric shapes. Our in-house mixing allows for choice of materials with a compression deflection rating ranging from a very soft 2-5 pounds per square inch; to a firm 17 to 25 pounds per square inch. The self-forming skin enhances the profiles resistance to water absorption. Our low compression set and flame retardant versions make sealing possible in extreme environments. Our choice of colors aids the aesthetics of your assembly. Call today for a sample or a quote.
Do you have a large perimeter area that needs to be sealed? Do changing contours on your mating
surfaces make a die cut gasket unworkable? Is the center fall out waste from your die cut gasket
making your project cost prohibitive? We can extrude one of our standard shapes or custom produce
a profile of your design and vulcanize the gasket profile endless to cost effectively meet your
sealing needs. Circles, rectangles, and odd shaped gaskets are within our capabilities.
Silicone sponge in five hardness ranges, solid silicone in Shore “A” ratings from 20 to 90,
and custom formulations to meet industry and military specifications means that your choice is
almost limitless. Call today for samples or quotes