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SafetyCrete Dairy Shed Repair Mortar

Chemical and abrasion resistant topping - trowel applied
10 Litre Kit

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Chemical and abrasion resistant topping - trowel applied, 10 Litre Kit

GEMCOAT CRT is a three part , solvent free epoxy topping. It is formulated as a chemical & abrasion resistant lining for concrete, steel, and fiberglass substrates such as floors & and secondary containment (bunds) exposed to immersion and splash & spillage. It is applied by trowel over surfaces primed with GEMREZ CR 1:1 resin. It has tolerance of moisture, poorly prepared substrates, and will cure at low temperatures. It is formulated to have resistance to most concentrated acids & alkalais, and other commonly used chemicals such as solvents etc. – consult with GemCo for suitabilty for use.

Download 4.169 GEMCOAT CRT Product Sheet

Physical properties

  • Appearance: Part A (Base) - clear liquid Part B (Hardener) – amber coloured liquid Part C (Aggregate) – a mixture of mineral particles
  • Odour: low odour
  • Solids: 100 %
  • Coating Type: Epoxy
  • Packaging: 8 litre , three part pack
  • Mix ratio: 1 litre base: 1 litre hardener: 8 litres aggregate (by volume)
  • Pot Life: 1/2 hour approximately at 20 degrees Celsius Coverage: 2 sq metre/8 litre kit @ 4mm DFT(theoretical - depends on substrate)
  • Dry to Re-coat: Typically overnight - will vary according to temperature & humidity Dry hard 24 hours for initial cure, 7 days full cure

Surface Preparation

  • All oil, grease , and other contaminants must be removed (GEMPREP 2000 is recommended).
  • Loose material, scale, and old paint must be removed.
  • All surfaces must be primed with GEMREZ CR 1:1 before applying GEMCOAT CRT

Method of Application

  • GEMCOAT CRT comes in 3 part pack with correct ratio of ingredients.
  • Add hardener to base and thoroughly mix - a drill with a mixing blade is required.
  • In cold weather warming base & hardener in hot water will make mixing easier.
  • Then add aggregate slowly and thoroughly mix.
  • GEMCOAT CRT is applied by trowel.
  • Cure to a firm surface is normally overnight but will vary depending on temperature & humidity.
  • 7 days should be allowed for full cure.
  • GEMCOAT CRT is applied over GEMREZ CR 1:1 chemical resistant resin.
  • Allow to cure 24 hours. If possible then cure for 16 hours @ 50° C.
  • Allow 7 days minimum before putting into service.

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.