EKI 899 Butyl rubber black

  • Raw Material: butyl rubber
  • Color: black
  • Density: 1200 kg/m³
  • Self adhesive: 1 side, 2 sides, without
  • Suitable for: Seals and bearings in contact with drinking water.
View all specifications
Black butyl rubber used for seals, etc. involving contact with drinking water up to a temperature of 60°C. Used for: seals and bearings in contact with drinking water.

Product attributes

General Description
Raw material butyl  
Material type rubber  
Unique feature drinking water  
Color black  
Hardness (Shore A) 50 Shore A
Range: 45 Shore A to 55 Shore A
Density 1200 kg/m³
Range: 1150 kg/m³ to 1250 kg/m³
Standard: DIN EN ISO 845
Possibilities Material
Self adhesive 1 side, 2 sides, without  
Most sold thicknesses 2 mm  
Non standard thicknesses on request for larger numbers  
Max width of rolls 1500 mm  
How many plies? none  
Surface 1: finishing tissue imprint  
Surface 2: finishing tissue imprint  
Technical Properties Material
FMVSS302 compliant  
WRAS compliant  
WRAS up to 60 °C  
Temperature -45 °C to +100 °C intermittent +120 °C  
Change of volume: 7 days, 70 °C < 5% (ISO 188)  
Thermal conductivity 0,23 W/mK  
Compression set: 25%, 22h, 70 °C max < 30% (DIN 53518)  
Tensile strength MPa 10 MPa (ISO 37)
Limit: > 9 MPa
Elongation 300% (DIN 53504)
Limit: > 250%
Tear resistance 21 N/mm (ASTM D624-00)
Limit: > 18 N/mm
Maximum % of compression 25%  
Maximum load < 5 N/mm2  
Young modulus 100 1,5 MPa  
Young modulus 200 3,5 MPa  
Young modulus 300 6 MPa  
Applications, Standards
UV resistance very good  
Ozone resistance very good  
Application with oil bad  
REACH compliant  
RoHS compliant  
Recyclable compliant  
CFC and HCFC free compliant  
Shelf life 2 year(s)  
HS code 40021990  


The published technical data is based on research data and serves as a guide for the various applications. Due to the great diversity of products and application possibilities, the buyer must test himself whether the intended material meets the requirements. All information is subject to typing errors, mistakes and market developments and no rights can be derived from this.

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