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Ark® 300 is a low viscosity curing agent designed for low to medium solids coatings with a workable wide range of pot lives and outstanding blush resistance.

Functions: Curing Agent

Chemical Family: Amines, Phenylalkylamine

Compatible Polymers & Resins: Epoxies (EP)

Features: Chemical Resistance, Easy Handling, Fast Cure, Fast Drying, Good Blush Resistance, Improved Flexibility, Long Potlife, Low Temperature-Curing, Low Viscosity, Solvent Resistance

    Knowde Enhanced TDS

    Identification & Functionality

    CASE Ingredients Functions
    Technologies

    Features & Benefits

    Features

    Cured with bisphenol-A or bisphenol-F or phenol novolac based epoxy resins. Ark 300 is most suitable as curing agent for

    • Rapid cure at low temperature(down to 5°C)
    • Combined with the advantages of polyamides and aliphatic polyamines for non-critical mixing ratios, wide range of pot life and flexibility alongwith good chemical and solvent resistance
    • Cured coatings are drying faster and tackfree under low temperature and high humid
    • conditions.
    • Contains low free amine to ensure excellent blush free performance
    • Its low viscosity reduces the handling problems of high viscosity phenalkamines

    Applications & Uses

    Compatible Polymers & Resins
    Applications
    • Ideal for Marine /Industrial and surface tolerant coatings. Suitable for floorings, tank lining, and protective coatings.
    • Ark 300 is designed for low to medium solids coatings with a workable wide range of pot lives and outstanding blush resistance.
    Recommended Mixing Ratios
    Epoxy resin ( EEW = 190 ) such as Epon 828 or GY 250 100 parts by weight
    Hardener Ark 300 150 parts by weight

     

    Properties

    Physical Form
    Appearance
    Clear, Reddish Viscous Liquid
    Typical Properties
    ValueUnitsTest Method / Conditions
    Active Hydrogen Equivalent Wt.(AHEW)286g/eq.
    Amine Value150 - 180mgKOH/gm
    Colormax. 16Gardner
    Density (at 25°C)0.94 – 0.97kg/l
    Flash Point23°CClosed Cup
    Mass Solids58.5 – 61.5% w/w
    Viscosity (at 25°C)500 - 1500cP
    Volatiles Content (Xylene : n-Butanol = 3 :1 )max. 40% w/w

    Storage & Handling

    Shelf Life
    Minimum One Year
    Storage and Stability

    Epoxy Hardener Ark 300 should be stored in a cool dry place at 18 – 25 °C in the sealed container to achieve shelf life of minimum one year. Product can react with moisture and carbon dioxide in the air. This may result in increase viscosity and reduce its activity.

    Handling Precautions
    • May be harmful if ingested or absorbed through the skin and can cause sensitization.
    • Will cause severe irritation in contact with eye And skin. Wash thoroughly after handling.
    • Adequate ventillation is essential.
    • Containers should be tightly closed when not in use or during transportation.
    • Do not inhale mist or vapors .
    • It is recommended to use gloves, safety glasses and protective clothing for safe handling.