KPRO Repair CSM-101

Product Application

Kilsaran KPRO Repair CSM-101 is a Concrete Surfacing Mortar suitable for use internally and externally as a fairing coat on vertical or overhead soffit concrete elements. CSM 101 is one component cement based, fine-grained, polymer-modified Class R2 mortar. CSM 101 should be used in applications to level the surface up to 3mm in thickness, where the concrete will not be trafficked and receive a subsequent coating.

The Concrete Surfacing Mortar mix is specifically formulated for a wide range of surfacing applications up to 3mm. Some of these applications include;

  • Filling in minor blowholes and defects such as honeycombing on concrete surfaces
  • Levelling surface imperfections up to 3mm in depth
  • Cosmetic Repairs to precast concrete elements such as stairs, architectural panels etc.

Product Use

Suitable for use in temperatures between +5°C and +25°C. KPRO CSM-101 is used for applications from 0.5mm – 3mm in thickness. All surfaces must be clean and free from laitance, dust, debris and all oils etc. Roughen the surface and expose the fine aggregate by light scabbling or grit-blasting. The area to be repaired should be pre-soaked immediately before application with residual surface
water removed.

This product only requires the addition of clean water. K-PRO CSM products should be mixed in a suitable forced action mixer or spiral screw paddle drill at a low speed to ensure a lump-free, smooth, consistent mortar. Mix the contents of a 20kg bag with 6.0 litres of clean potable water. Water should be measured and placed in the mixing
container before adding the full 20kg bag of dry powder and mixed for a minimum of 3-5 minutes taking care not to entrain air. The product should be used immediately after
mixing in suitable weather conditions. Re-mixing or the later addition of water is not permitted as this will have an adverse effect on the product’s life and durability.


This product offers many advantages over conventional site-mixed or ready-mixed resurfacing materials:

  • Compatible with concrete strengths
    ranging from C16/20 to C35/45
  • Excellent bond to concrete surfaces
  • Pre-mixed on component eliminates
    the inaccuracy of site mixing
  • Low permeability to water and chlorides
  • Chloride free

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