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DESCRIPTION
RB-ECT 2K coal tar epoxy is a high solids, high build polyamide cured coal tar epoxy coating with excellent resistance to sea water, crude oil, various soil chemicals and soil stress.
As a long life protective coating on steel and concrete in severe corrosive environment, e.g. on submerged surfaces, crude oil and slop tanks, splash zones, sewage systems, etc. Excellent resistance to chemical attack encountered on both steel and concrete including buried pipes.
New steel: Remove oil and grease etc. thoroughly with suitable detergent. Remove salts and other contaminants by high pressure fresh water cleaning. Abrasive blasting to near white metal. Apply immediately after cleaning. All damage of shop primer and contamination from storage and fabrication should be thoroughly cleaned prior to over coating.
Repair and maintenance: Remove oil and grease etc. thoroughly with suitable detergent. Remove salts and other contaminants by high pressure fresh water cleaning. Clean damaged areas thoroughly by power tool cleaning (minor areas) or by abrasive blasting. Feather edges to sound and intact areas. Dust off residues. Touch up to full film thickness.
Concrete: Remove slip agent and other possible contaminants by emulsion washing followed by high pressure hosing with fresh water. Remove scum layer and loose matter to a hard, rough and uniform surface, preferably by abrasive blasting, possibly by other mechanical treatment or acid etching. Seal surface with suitable sealer, as per relevant painting specification.
Handle with care. Before and during use, observe all safety labels on packaging and paint containers, consult RBBCO. Safety Data Sheet and follow all local or national safety regulations.
Apply only on a dry and clean surface with a temperature above the dew point to avoid condensation. Use only where application and curing can proceed at temperature above: 10°C/ 50°F. The temperature of the surface and that of the paint itself must also be above this limit. The optimal paint temperature for proper mixing, pumping and spraying is 20-25°C/ 68-77°C. In confined spaces provide adequate ventilation during application and drying.
May be specified in another film thickness than indicated depending on purpose and area of use. This will alter spreading rate and may influence drying time and over coating interval. Normal range dry is: 200-350 micron/ 8-14 mils.
Over coating intervals related to later conditions of exposure: If the maximum over coating interval is exceeded, roughening of the surface is necessary to ensure inter coat adhesion.
Before over coating after exposure in contaminated environment, clean the surface thoroughly with high pressure fresh water hosing and allow drying.
A specification supersedes guideline overcoat intervals indicated in the table.
| Environment | Atmospheric, medium | |||||
| Surface temperature | 10°C (50°F) | 20°C (68°F) | 30°C (86°F) | |||
| Min | Max | Min | Max | Min | Max | |
| Initial coat | 60 h | 17 d | 24 h | 7 d | 12 h | 3 d |
| Secondary coat | 60 h | 17 d | 24 h | 7 d | 12 h | 3 d |
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