Holdwash is more effective then
1. Lime wash always be applied to a dampened surface (use a small hand-pumped spray) rather than directly to a dry substrate. It should not be applied in very cold, hot or wet conditions. It is also essential to wear protective gloves and goggles. While Slip barrier coat - hold block can be apply on dry as well as wet surface and for its application no any special precaution required.
Coal and
HOLD Brite RX resulting high foaming action during high pressure cleaning. High foam is beneficial to apply on vertical surface and can stand more stick to the surface longer, before drying. For heavily soiled areas, a preliminary cleaning is required. If surface is heavily contaminated, higher concentrations of the product in water can be used, even neat if contamination persists.
COLD water is recommended for drying or semi-drying oils to flush the tank as prewash. Chemical expert suggest that cold water should be carried out immediately after discharge of cargo to prevent hardening of oil residues. Otherwise if oil is nondrying then Prewash of the tank with hot water at 50˚C is good decision to achieve BEST cleaning result.
Question : Why uses of alkaline cleaner prohibited to clean fatty acid contains substances like veg oil, Animal oil etc ?
Recirculation Method for ship tank cleaning -
1) First of all heat the remaining oil in tanks .
2) By stripping constantly. flush the tank with sea water,
3) Close all suction and discharge valves .
Direct Hand Spraying Method some time becomes necesory for cleaning of heavily contaminated tank. On the otherhand we can also say that expert always selecting hand spray method before going to any other tank cleaning method to make there job easy. Expert shortlisting all tuff and heavily contaminated area and directly spraying neat Sea Voyage Tank clean all over soiled areas. Allow 10-20 minutes for reaction , then rinse with high pressure water hose., Scrubbing will assist the cleaning operation for stubborn deposits.