HOT BLACK (711)
THIS A BLEND OF CHEMICALS WHICH PRODUCE A GLOSSY BLACK FINISH ON METALLIC COMPONENTS.
WORKING TEMP OF THIS CHEMICAL IS 85 TO 95 DEGREE CELSIUS.THIS IS MILDLY ACIDIC IN NATURE AND IS TOTALLY ODORLESS AND FUMELESS IN WORKING.
INSTRUCTION :
- DEGREASING ;- COMPONENTS SHOULD BE OIL AND RUST FREE BEFORE IMMERSING IN HOT BLACK (711)
- DERUSTING ;- COMPONENTS SHOULD BE RUST FREE AND PROPERLY CLEANED BEFORE IMMERSED
- HOT BLACK (711) ;- CLEANED COMPONENTS ARE IMMERSED IN SOLUTION FOR 2 –3 MINUTES AT 85-95 DEGREE CELSIUS TEMP.
- CUTTING OIL DIp.
- AIR DRY.
APPLY GOOD QUALITY RUST PREVENTIVE OIL DURING PACKING.
WORKING AND ADDITION :
Initial bath preparation ;- 10%(1 liter chemicals, 9 liter water)
- Then for every 100 kg work done, add 500 MLS of HOT BLACK 711 CHEMICAL.
- Water will evaporate, thus replenish bath with water and chemicals in ratio of 1:9.
- ( if 10 liter water short then add 1 liter hot black and 9 liter water to the bath.)
- Clean ( discard) bath every 25 - 30 days if regular work is done.
-
Before cleaning ( discarding) of bath stop addition of chemicals . This is a self neutralizing bath as after sometime all chemicals will be consumed and ph of the bath will be near neur
- DISCARD BATH AS PER LOCAL POLLUTION BOARD GUIDELINES.
- Pls keep constant check on cutting oil also and keep adding regularly as oil tends to thin after sometime.
- Prepare bath in plastic or metal container.
- Keep washing bath clean.
- Wear gloves and goggles during work and keep working area well ventilated.
