Chempoxy coal tar
It is a 2 component epoxy coal tar protective coating for steel and concrete
Product Description
Uses
- Steel and concrete pipelines.
- Steel structures exposed to an aggressive environment
- Crude oil storage tanks / underground structures.
- Dams, Barrage gates, Penstocks.
- Foundation walls and sumps.
- Concrete and Steel surfaces in the sewage treatment plant.
- Paper Mills / Chemical Plants.
Salient Features
- Self-Priming Property. Can be applied directly to the prepared Concrete or Metal Surface.
- Flexible anti-corrosive / protective coating for structures – MS or concrete – even where the structure is in continuous contact with water.
- Provides excellent resistance to impact, thermal shock, and abrasion.
- Excellent resistance to sea/salt water, oil, acids, alkalis, crude oil, and minerals.
Technical information
Excellent resistance is observed against distilled water, detergent solutions, dilute alkalis, and dilute acids.
| Property | Test Method | Value and Unit |
|---|---|---|
| Mixing Ratio | NA | Pre-weighed kit of 1 liter and 5 liters |
| Surface Finish | CPI 1001* | Gloss |
| Pot Life @ 30°C | CPI 1002 | 60 minutes |
| Surface Dry | CPI 1002 | 4–5 Hours |
| Full Cure [Vehicular Movement] | CPI 1002 | 4–5 Days |
| Recoat Time | CPI 1002 | 30 minutes (Max) |
| Coverage in Linear Meter per Litre | CPI 1009 | 2.5 meters for a groove of 2 cm depth × 2 cm width |
| Elongation | ASTM D 638 | > 35 % |
| Shore Hardness | ASTM D 2240 | Shore A 65–70 |
| Specific Gravity, Mix @ 30°C | ASTM D 1457 | — |
| Water Resistance, Immersion – 7 Days | ASTM D 870 | Passes |
| Abrasion Resistance (1000 Cycles, CS 17) | ASTM D 4060 | 100 ± 10 mg loss |
| Salt Spray, 500 hrs @ 100 micron | ASTM B 117 | Excellent |
| DFT (Wet Film Thickness) | ASTM D 4414 | 150 – 200 microns |
| Tensile Strength | ASTM D 638 | > 5 MPa |
| Shelf Life | — | 12 months in original unopened container when stored between 10–30 °C |
Method of Application
1 Surface preparation:
Grind or prepare the substrate with a wire brush or other suitable equipment, and remove dust and friable particles . Clean the surface with a vacuum. Ensure that the surface is free of contaminants like oil, grease, etc. Ensure the ambient temperature is not less than 10 °C and not more than 50 °C at the time of coating.
2. Priming
Priming is usually not necessary. Most substrates only require priming if testing indicates a need. Consult Chemsol solution experts for additional information.
3. Mixing and Application of Material
Stir each component thoroughly. Mix component A and B in a prescribed ratio with a slow-speed stirrer fitted with a suitable mixing paddle to a homogenous and uniform mixture for 2 minutes. Ensure that there is no entrapped air. Apply the above mix directly on the concrete surface or metal surface. Apply Chemozinc EP if required in case of a metal surface before application of Chempoxy Coal Tar Apply the first coat of Chempoxy coal tar on the prepared surface by brush/roller/spray. Allow it to touch dry for 4-5 hrs (depending on ambient conditions) If required, apply a second coat of Chempoxy coal tar. While the application is with an airless spray, use standard equipment having a tip size minimum of 23 thou and a tip pressure of 2200-2400 psi
Cleaning of Tools
Packing
Storage Conditions
Handling & Safety
*Disclaimer: The Information provided is based on our experience, thorough investigations & sophisticated testing methods but due to the vast number of applications and usage methods, Chemsol Polymer Industries cannot accept responsibility of any kind for any particular result. It is the responsibility of the user to verify the suitability of the product for their end use and in accordance with the rules and regulations of that country /territory. All information provided pertaining to our products should be treated only as a guidance tool without any guarantee or warranty of any sorts.
* All CPI test methods are our scientifically designed internal test methods which can be shared upon request.
