PU4517 is an MDI based, moisture curing polyurethane binder with high tensile strength properties for insitu rubber crumb shock pads, particularly in equine applications.
It has been formulated to provide increased rigidity in extreme and high wear applications. PU4517 has a relatively low viscosity and fast cure speed, providing ease of installation in a wide range of climatic conditions.


Available in:
200L drum
20L plastic pail


  • Playgrounds
  • Walkways
  • Equine Stables
  • Parade Grounds
  • Equine Walkways
  • Horse Floats

See all applications in our Technical Data Sheet

See all applications in our Technical Data Sheet

How to use

  • Application Temperature

    +15°C until +40°C

  • Substrate Preparation

    Ensure the ground to be coated is well prepared. All loose material should be removed. Ensure the surface is free from contamination such as oil and grease. The surface should also be dry.

  • Mixing

    Mix rubber granules and binder PU4517 at desired ratio. Ensure the volumetric ratio of binder addition is considered as the bulk density of rubbers will vary. Rubber granules should be dry in order to stop accelerated cure times and foaming of the binder.
    For adequate mixing, a high torque rotary mixer should be used. Rubber and binder should be mixed for up to 5 minutes ensuring all the rubber is coated.

  • Installation

    The product can then be laid out on a prepared surface and compacted using a hand trowel or weighted roller. Ensure an even compaction of the rubber. A release agent should be used on all tools to avoid adhesion of the binder to the tools. Ensure all equipment is cleaned well after use.



Why does the PU4517 discolour with exposure to UV?

As will all MDI polyurethanes, they are subject to colour changes during exposure to ultraviolet light. This will not affect the mechanical properties of the binder.

What is the recommended ratio of PU4517 binder to rubber crumb?

The PU4517 should be applied at a rate of 20% of the rubber crumb weight.

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