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Master Coat
MASTER COAT is an aesthetic and protective epoxy resin coating which has been specifically developed to meet the 'In service' protection of concrete, metal, etc. The product is supplied as two-pack system comprising of pigmented base and hardener. It requires only on site mixing to produce an easily applied decorative and chemical resistant finish. Master Coat coating will not support the growth of bacteria.
GUIDE TO APPLICATION
Ensure adequate ventilation during application. Master Coat coating can be applied either using lambs wool rollers or short haired stiff bristled nylon brushes. The second coat is applied on the second day of the first coat or at an interval of atleast eight hours.
PROPERTIES
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Density
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1500 kg/m3
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Bond Strength
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In excess of cohesive strength of mortar
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Pot Life
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45 min at 350C
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Tack Free Time
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6 hours at 350C
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Initial/Full Cure
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24 hrs / 7 days
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Shelf Life
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6 months
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Specific Gravity
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1.38 at 200C
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Dried Film thickness
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100 microns per coat
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Appearance
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Smooth and glossy
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Chemical Resistance
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Excellent
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Packing
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1 kg and bulk
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OVER COATING
Where areas need to be over coated due to damage etc., it is important that the area to be treated is well abraded using stiff rotary wire brush or coarse sand paper to give adequate key. Completely strip off any unsound coating and proceed with over coating as for new work.
EQUIPMENT CARE
All equipment must be cleaned immediately after use with cleaning solvents. Similar procedures should be adopted for break periods exceeding fifteen minutes.
COVERAGE
8 to 10 square meter per kg per coat. Two coats are recommended.
HEALTH AND SAFETY
Epoxy products generally cause irritation to the skin. Use of hand gloves by the workers is advised. Upon completion of day’s work all the packing material should be burnt and buried.
PRIMARY USE
For the external and internal protection of concrete or metal tanks containing drinking water, oils, consumable liquids, etc. Best used as floor and wall coating. It waterproofs the surfaces on which it is coated. Used as an impervious, resilient and chemical resistant floor or wall coating in food processing plants, breweries, canning and bottling factories, and general water proofing. Used as a protective and decorative coating in laboratories, abattoirs etc.
ADVANTAGES
1) Durable
2) Solvent free
3) Non -toxic
4) High build coating
5) Waterproof
6) Chemical resistant
7) Easily applied by brush or roller
CHEMICAL RESISTANCE
Master Coat is resistant to the following typically encountered chemicals. Formaldehyde 40% solution, Sulphuric Acid 30% solution, Wine, Acetic Acid 5% solution, Diesel-Oil, Hydrochloric Acid 50% solution Aviation Hydraulic Fuels (skydrol), Nitric Acid 10% solution and Vegetable oils. Master coat coating may slightly change color in certain chemical environments but the chemical resistance of the Master Coat film remains unchanged.
DIRECTIONS FOR USE
Surface Preparation :
The substrate should be a smooth or semi-smooth sound surface such as concrete or metal. It is most important to ensure that thorough surface preparation is undertaken prior to application of the Master Coat Coating.
Concrete :
Ensure concrete is free from excessive laitance, grease, oil, curing compound, etc. Ensure concrete is sound. Cut back wherever necessary and make good using suitable cementitious or epoxy repair system. Ensure all blow holes and surface imperfections are made good prior to application of the coating. Wire brushing followed by degreasing, acid etching or grit blasting may be necessary to remove laitance. Ensure concrete is atleast 28 days old.
Steel :
All previous surface treatments should be removed taking the surface back to base metal. The base metal should be abraded and preferably shot blasted. Cleaning with solvent or a strong detergent is advisable to ensure surface is free from grease etc. Do not allow surface to re-oxidise before application of Master Coat.
Mixing :
Master Coat is supplied in two pre-weighted components, Base and Reactor. No additions or omissions are required. Add reactor contents to the base components and stir thoroughly for 3-4 minutes using a slow speed hand drill fitted with a paddle. Mix until a uniform colour is achieved. Apply in two coats.
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