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High-performance Tar Modified Epoxy Protective Coating

isocoalta is a two part solvent-free tar modified epoxy coating with high abrasion resistant capacity .Provides extreme protection to concrete and metal structures at all weather conditions. It is specially formulated to provide single coat application up to 600 microns dry film thickness. It has high resistance to abrasion and impact. It has excellent chemical resistance against diluted acids, alkalis, salts, minerals, oils, aliphatic hydrocarbons, and seawater.


  • Outstanding adhesion and sealing qualities.
  • Temperature resistant.
  • Capable of withstanding severe cases of expansion, contraction and deck movements.
  • Liquid applied/ Easy to apply with roller or brush.
  • Provides high build coating in single application
  • Excellent resistance to Chemicals
  • Provides seamless coating for perfect resistance to water penetration.
  • Corrosion resistance.
  • Low VOC non -toxic and environmentally compliant.


It is an ideal water proofing system suitable for sewage treatment plants, and as a corrosion control in shipbuilding. Suitable for underground steel and concrete foundations, penstock pipelines etc


Color Black/ Brown
Water absorption 0.2%
Service  Temperature 5ºC to 60ºC
Solid content 100%
Water resistance:Positive pressure 1.55bar
                         Negative Pressure



Elongation 40%
Tensile Strength 10N/mm2
Compressive Strength 44MPa
Coverage 3to 4m2/Ltr
Sp. Gravity 1.2+ / -0.06
Pot life 1hr @30deg
Surface Dry 6hrs@30de
Recoating interval 10hrs

Performance against Acid

Hydrochloric Acid 15% Excellent Resistance
Nitric Acid 15% Excellent Resistance

Performance against Chemicals and Others

Sodium Hydroxide 25% Excellent Resistance 3to 4m2/Ltr
High density sea water Excellent Resistance
Sewerage water Excellent Resistance

All values given are subject to +5-15% tolerances.


The proper surface preparation is essential for a successful application .For concrete surfaces applications, remove all deteriorated and loose concrete, form release agents, oil, grease, laitance, dust, dirt and efflorescence by dry or wet sandblast, shot blast, or high-pressure water .Repair deeper areas using isoflex recommended material. For steel surface should be sand blasted to commercial grade.


Mix both components in a clean container as per specified ratio until a homogenous mixture obtained .It is very essential that both components are thoroughly mixed .Keep still for 5 to 7 minutes induction time to allow bubbles burst prior to application.


Can be applied conventionally by brush or roller and air less spray (.Nozzle Orifice 0.38 – 0.46 mm. Nozzle Pressure 1138 - 1710 psi. Dilution 0 - 5% Thinner #135) It is recommended to apply several coats instead of one thick coat to prevent entrapments of bubbles.

Safety Precautions: isocoalta in its liquid state is harmful if swallowed. Keep uncured epoxy materials away from the mouth, food or drink. Do not use empty tins to store food Always wear gloves and safety materials when handling this product. Clean any splashes or smears from the skin immediately, using warm water and soap. Avoid inhaling vapor. If contact with eyes occurs, splash with fresh water and seek immediate medical advice.

Packing / in 4 liter sets and 20 liter sets
Storage ISOCOALTA when stored on pallets in dry, cool area, away from moisture and direct sunlight, has a shelf life of 12 months