EKI 5128 PU backing rod

  • Raw Material: PU foam
  • Color: grey
  • Density: 25 kg/m³
  • Self adhesive: not possible
  • Suitable for: Flame-retardant backing rod for sealants, filling joints.
View all specifications
Grey polyurethane backing rod with flame-retardant properties to fill joints that need to be sealed.

Product attributes

General Description
Raw material PU  
Material type foam  
Unique feature fireproof  
Color grey  
Cell structure open  
Density 25 kg/m³
Range: 22 kg/m³ to 28 kg/m³
Standard: DIN EN ISO 845
Possibilities Material
Self adhesive not possible  
Profile shape cord  
Cord smallest diameter Ø10 mm  
Cord largest diameter Ø250 mm  
Technical Properties Material
FMVSS302 compliant  
UL94 HF1 V0  
EN1501 A2/B  
Crib 5 compliant  
Behavior with fire no burning or dripping  
Temperature -25 °C to +80 °C intermittent +100 °C  
Linear shrinkage 22h, 70 °C < 5%  
Compression deflection 40% 3,6 kPa (DIN EN ISO 3386)
Compression set: 50%, 24h, 70 °C 5% (DIN EN ISO 1856)
Limit: < 7%
Tensile strength 105 kPa (DIN EN ISO 1798)
Limit: > 95 kPa
Elongation 120% (DIN EN ISO 1798)
Limit: > 100%
Resilience > 45% (DIN EN ISO 8307)
Maximum % of compression 90%  
Applications, Standards
REACH compliant  
RoHS compliant  
Recyclable compliant  
CFC and HCFC free compliant  
Shelf life 2 year(s)  
HS code 39072011  


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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