Rubber extrusion is the process whereby Rubber is forced through a shaped die (stainless steel disc with a pattern cutout) to produce cords, complex profiles and cross section.

Rubber extrusions typically show a huge improvement over other materials they last longer, come in a multitude of colors and stand up to a wider variety of environmental conditions. We can produce conditions simple extrusion or make custom sizes with complex cross-sections.

Material use for Rubber Extrusions

Rubber rubber usually contains pyrogenic silica as filler, Pyrogenic silica is structurally very similar to the polymer. They both consist predominantly of Si and O which leads to very interesting properties:

• High transparency
• Good mechanical properties thanks to effective polymer-filler interaction
• Good flame resistance; non-toxic combustion products in the case of fire

General Properties of Rubber

• Broad operating-temperature range from –50 °C to +250 °C, (specialty grades: –110 °C to +300 °C)
• Only slight changes in physical properties between –50 and +180 °C
• Excellent compression set
• Odorless and tasteless (many grades are BfR and FDA compliant)
• Can be pigmented as desired
• Can be easily processed
• Can be adjusted electrically from insulating to semiconducting High radiation resistance

Typical Range of Mechanical Properties

• Density 1.05 – 1.60 g/cm3
• Shore A hardness 3 – 90
• Tensile strength 5 – 11 N/mm2
• Elongation at break 100 – 1,100%
• Tear strength (ASTM D 624) 5 – 55 N/mm
• Compression set (22 h /175 °C) 5 – 25%
• Rebound resilience 30 – 70%

Typical Applications Rubber Extrusions

Rubber extrusions are used in many applications and industries throughout the world. Have vast experience in designing and manufacturing for virtually any requirement including:

• Industrial And Commercial Food Oven And Cart Seals , Gaskets And Fluid Handling
• Washers And Seals For Electronics And Electrical Equipment
• Architectural And Window Seals
• Electrical Connector Seals
• Fiberoptic Sheathes
• Industrial Louvers And HVAC Equipment
• Automotive Electrical Enclosure Weather Seal
• Outdoor Electrical Enclosures
• Outdoor Cellular Telecommunications Enclosures
• Water Purification and Filtration Seals And Tubing

Typical Applications Rubber Extrusions

• Silos And Storage Tank Seals And Tubing
• Medical Equipment Seals And Tubing
• Aerospace and Military Seals And Gaskets
• Dairy Seals And Fluid Handling Tubing
• Peristaltic Tubing
• Plastic Case Seals

Hitech Rubber can produce extrusions for a wide variety of applications and will be pleased to quote for requirements to sketch/drawing details or existing sample to match. New tooling and samples typically takes 2-3 weeks. The examples below are by no means an exhaustive list, merely a sample of some of the profiles Samsons can produce. If you cannot find what you require please give us a ring and we will do our best to meet your requirements.

General Profiles	Round cords, tubings, squares, rectangles
Custom Made Profiles	Production of special profiles to customers drawings or samples. We offer a development
	service which includes die design and manufacture
Translucent Medical Grade Tubings	This high quality non-toxic medical and food grade Rubber rubber (B.G.A. F.D.A. approved) tubing is available in a range of sizes to suit most requirements
Rubber Sponge Extrusions	Production of seals and gaskets using non-toxic blowing agents
Cable Coverings	Production of Rubber covered cables in single or twin
	configuration from customer supplied wire
Oven Door Gaskets	Production of complete gaskets including bonding to metals
Corner Mouldings	Production of complete seals and gaskets