Dual-component polyurethane with good mechanical strengths, low foaming factor and fast reaction 



WILLPUR® HF is a polyurethane (PU) foam with a relatively low foam factor. The product reacts foamingly even without water contact to fill smaller and larger cavities. WILLPUR® HF also has a high adhesive strength to the surrounding rock and remains as a hard-elastic product after curing.




  • fast foaming PU resin
  • foams with and without water contact
  • high adhesive strength
  • stable PU foam
  • adaptable injection system with addition of WILLADD® THIX and WILLADD® FAST


  • stabilization of friable rock with large pore or fissure volume
  • filling of smaller cavities


Technical data

Cure time (20°C):75 ± 15 
Foam Factor:~ 7
Volumetric mixing ratio A:B1:1
TDS & MSDS available upon request 


 Packaging form 

Tin Canisters 20lComponent A: 21 kg
Component B: 25 kg
Other delivery forms on request 


Dipl.-Ing. Karl-Heinz Lindenbauer

Head of Sales Civil Engineering & Mining (DACH region)

Phone:+49 231 9640 413
Mobile:+49 173 931 22 43

Dipl.-Ing. Paulo H. Tsingos

Head of Export Civil Engineering & Mining

Mobile:+49 173 940 58 40

Dipl.-Ing. Sergej Kremer

Internal Sales Civil Engineering & Mining East Europe

Phone:+49 231 9640 312
Mobile:+49 176 576 723 69
Fax:+49 231 9640 232

Peter Simon