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SafetyCrete Dairy Shed Repair Mortar

Epoxy repair mortar for concrete floors

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Epoxy repair mortar for concrete floors

GEMPATCH ERM is a 2 part trowelable epoxy repair mortar which is solvent free. It is suitable for over coating with GEMCOAT EFS epoxy sealer, and then GEMCOAT EFC epoxy floor coating. It is formulated to fill cracks & holes in concrete and has good impact resistance. It is ideal for factory floors, changing rooms, toilet & shower blocks etc. It has low temperature cure and will tolerate damp surfaces and less than perfect surface preparation.

Download 4.140 GEMPATCH ERM Product Sheet

Physical properties

  • Odour: low odour
  • Solids: 100%
  • Coating Type: Epoxy
  • Packaging: Two part pack - makes up 2 or 8 litres
  • Mix ratio: 1:1
  • Pot Life: 30 min at 20 degrees Celsius
  • Coverage: 1 metre/litre @ 1cm DFT(theoretical - depends on substrate)
  • Cure tack free: Typically 1-4 hours - will vary according to temperature & humidity
  • Cure hard 24 hours for light foot traffic,7 days full cure  

Surface Preparation

  • Concrete must be 28 days old.
  • Remove laitance (alkaline salts on the surface formed during concrete cure) by either acid etching with 5% hydrochloric or grinding.
  • All oil, grease , and other contaminants must be removed (GEMPREP 2000 is recommended). Loose rust, scale, and old paint must be removed.  

Method of Application

  • Add hardener to base and thoroughly mix by hand or with a putty knife on a board or similar. Tack free is usually 1-4 hours.  
  • Handling Precautions
  • Avoid contact with eyes and skin.
  • Do not ingest.
  • Use with adequate ventilation.
  • Protective clothing ,eye protection, and gloves should be worn.
  • Do not breathe vapour
  • Keep away from children.


The information provided is accurate to the best of our knowledge. We can not however anticipate all conditions under which this information and our products may be used. We therefore accept no responsibility for results obtained by the application of our products, or  for their safe use  and suitability. GemCo Limited sells these products without warranty and buyers  and users assume  all  responsibility and liability for loss or damage arising from the handling  and use of our products.

2 Litre Kit