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Coat(R)
DESCRIPTION:
AT-COAT (R) is the two-component system, designed to cross-link at room temperature as well as low temp baking. Medium molecular weight Epoxy Resin is used in base component, contain average two epoxy groups per molecule which reacts with hardeners, the same are converted into a hard, infusible, three dimensional cross linked irreversible Thermo set film at an ambient or elevated temperature. AT-COAT (R) having outstanding chemicals resistance with high gloss and excellent hardness. It gives nice decorative appeal. Product gives adhesion to different type of substrates, excellent flexibility & abrasion resistance
THE RANGE OF APPLICATION:
- The system recommended for application on suitably primed steel structure exposed to chemical and industrial environment in refineries, petrochemicals, paper and pulp plants, food and pharmaceutical units, and fertilizer industries. This product can be applied on floor for protection from saline and chemicals. This product is recommended for use in sea weather (Marine Environment / Coastal Areas). The coating is useful as a top-coat on Electrical Control Panels and Machinery, which are installed in chemically affected environment.
KEY PROPERTIES OF SYSTEM:
- The ability to be cured rapidly or slowly over wide range of temperature. Cold curing and baking both are possible.
- Low shrinkage during cure.
- Excellent adhesion to many different substrates.
- Good mechanical strength, which is retained at, elevated temperatures.
- Outstanding toughness and good flexibility.
- Excellent solvent, Acid and Alkali resistance.
- Excellent water and alcohol resistance, salty water resistance Unaffected by Oil and Grease, detergents.
- Good electrical properties (insulating).
LIMITATIONS:
- Chalking effect when direct exposed to sunlight
- Yellowing effect at higher temperature
PRODUCT DATA:
| TYPE | Two pack system clear cold or elevated temperature cured |
| BASE | Epoxy material thinned with suitable solvents |
| HARDENER (SUITABLE AS PER APPLICATION AREA) | Based on amines or suitable adduct of amines clear, transparent or based on Polyamide Resins |
| MIXING RATIO | Base : Hardener by volume 4 : 1 |
| STORAGE LIFE INDIVIDUAL | Up to 12 months as long as the sealed containers are kept under cover in dry place under normal temperature conditions |
| POT LIFE | After mixing of Base and Hardener 4-6 hrs |
| APPLICATION | By Brush, Roller and Airless and conventional spray |
| RECOMMENDED DFT | 40 – 50 microns per coat |
| COVERING AND SPREADING RATE | Theoretical 10 – 12.5 sq. mtr/ kg By brushing (practical by conventional spray) 6.5 – 8 sq.mtr / kg |
| DRYING TIME | Surface Dry : 20 to 30 minutes Dry to handle : 4 – 6 hrs Hard Dry : Over night |
| COMPLETE CURE TIME | 6 to 8 days (depending on R.T) or after stoving At 120º C for 30 minutes |
| SCRATCH HARDNESS TEST | Passes 2000 gms |
| OVER COATING INTERVAL WET ON WET OVER-COATING | After 10 – 12 hrs After 30 min |
| FLASH POINT | Above 22º C |
| RESISTANCE TO DRY HEAT | Up to 120º C |
| RESISTANCE TO DRY HEAT | Up to 120º C |
| SALT SPRAY (5% NACL) | 500 hrs |
| SHADE | Clear coating |
| PACKING | Base : 20 kg Hardener : 5 kg |
| FINISH | Glossy or Semi-glossy as per requirement |
| THINNER | Xylene |
APPLICATION:
- Before application of AT-COAT(R) do all necessary pretreatment of the job. For M. S. surface, remove grease oil and other contamination by using proper degreasing agent. Blast clean the surface for heavy rusting or remove with de-rusting chemicals to clean the surface. For old concrete, remove all salt deposition/fungal growth, loosely bound coatings, and dust particles and make the surface rough. Also for new concrete coating do the needful pretreatment, priming and then apply topcoat AT-COAT (R).
- Stir the base component thoroughly and mix 4 parts of base and 1 part of hardener by volume to uniform consistency. Allow it for intermediate reaction for 15 – 30 min for stabilization and stir again before use. Make required viscosity as per application method with Thinner.
- The pot lifetime is only 4 – 6 Hrs. Mix the materials as per requirement. Close the containers immediately, to avoid the chances of moisture absorption in material and solvent losses. Do not apply in humid condition, during raining or mist and fog or at very low temperature below 10º – 12º C.
HEALTH & SAFETY:
- Protect hands with rubber gloves and eyes with goggles.
- Accidental splashes to the skin or eyes must be rinsed immediately with clean water.
- Store in well-labeled containers.
- If required get medical attention.