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SafetyCrete Dairy Shed Repair Mortar

Epoxy coating solvent free - chemical and abrasison resistant
2 Litre Kit

4.167 GEMCOAT CR 1:1
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Epoxy coating solvent free - chemical and abrasison resistant, 2 Litre Kit

GEMCOAT CR 1:1 is a two pot , solvent free epoxy matrix coating which can be applied by brush or roller. It is formulated as a chemical & abrasion resistant lining for concrete, steel, and fiberglass tanks, and secondary containment (bunds) exposed to immersion and splash & spillage of chemicals. It is formulated to have resistance to most concentrated acids & alkalais, and many other commonly used chemicals – consult with GemCo for suitability for use.Two coats of GEMCOAT CR 1:1 are recommended over the top of GEMREZ CR 1:1 chemical resistant resin.GEMCOAT CR 1:1 has also been developed for hot water immersion – consult with GemCo on suitability for use.It is also available in a high viscosity version for lining pumps & similar – GEMCOAT CR 1:1 HV.

Download 4.167 GEMCOAT CR 1:1 Product Sheet

Physical properties

  • Appearance: Base - pigmented liquid; Hardener - pigmented liquid
  • Odour: low odour
  • Solids: 100 %
  • Coating Type: Epoxy
  • Packaging: 8 litre kits
  • Mix ratio: 1 part base :1 part hardener
  • Pot Life: 1/2 hour approximately at 20 degrees Celsius (100g mix)
  • Coverage: 5 sq m/litre @ 200 microns (theoretical)
  • Dry hard 4 hours to tack free @ 25° C ; minimum of 48 hours @ 25° C before full service OR force cure for 16 hours @ 50° C.

Surface Preparation

  • All oil,  grease , and other contaminants must be removed (GEMPREP 2000 is recommended).
  • Concrete: Must be minimum of 4 weeks old. Acid etch with 5% Hydrochloric acid, wash clean with water and allow to dry OR physically remove laitence by suitable means e.g. grinding, sweep blasting etc.
  • On previously painted concrete physically remove coating by suitable means e.g. grinding, sweep blasting etc.
  • Steel : Blast with a suitable abrasive to near white metal (SSPC 10/SA 2.5 standard). If this is not possible remove loose material by mechanical cleaning or high pressure water blast until only tight rust is left.
  • Fibreglass: Abrade surface to give a good key.All surfaces must be free of dust or other contaminants before applying GEMCOAT CR 1:1

Method of Application

  • Two coats of GEMCOAT CR 1:1 are recommended over the top of GEMREZ CR 1:1 chemical resistant resin.
  • Add 1 part hardner to 1 part 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.
  • GEMCOAT CR 1:1  is  applied by brush , or roller in one coat - rolling is preferred method of application. Recoat with GEMCOAT CR 1:1 within 24 hours.
  • Allow system to cure 24 hours .If possible  cure for a further 16 hours @ 50° C .Allow 2 days minimum before putting into service – 7 days is preferred.

Handling Precautions

  • Avoid contact with eyes and skin. Do not ingest. Use with adequate ventilation.
  • Use a respirator or separate air feed in confined spaces
  • Protective clothing, eye protection, and gloves should be worn. 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.