1.Passivating Pickling Paste is applied on weld seam & surrounding areas with a nylon bristled plastic brush. Application Temp. = between 5 – 40 deg. C

2. Keep Passivating Pickling Paste for 5 to 30 minutes (contact time) depending on contamination, temperature & grade of Stainless Steel.

3. Use pressurised water jet spray OR wipe the weld seam lightly with plastic brush & wash with water thoroughly.

For Satin / Dull Finish

1. First remove oil, dirt,buffing compounds etc, with Rxsol  Degreaser. Add 50-75 gm/lit. in water (i.e. 1 kg Rxsol Degreaser in 15 to 20 lit. water) & stir to dissolve. Wipe S.S surface with cotton cloth or pressurized spray for 2-5 min. or soak for 10 min. Then, wash with water properly.

2. Passivating Pickling Paste is applied on weld seam & surrounding areas with a nylon bristled plastic brush or  by Paste sprayer or circulated in pipeline with pump.

Application Temp. = Room temp.( i.e. between 25-35 C). If temperature is less than 25 C, then more time may be required and if temperature is more than 35 C, then uneven preocessing & drying of applied materials may result.Then, cool SS equipment by keeping it in shade or cover by temporary shade to protect that not directly under the sun light.

3. Keep Passivating Pickling Paste for 10-45 minutes depending on contamination & scale. (Passivating Pickling Paste generally kept for 10-30 min. and Pickling Spray generally kept 30-45 min. Depending on SS type and initial condition of SS parts)

4. Wipe the weld seam lightly with plastic brush or cloth & wash the Passivating Pickling Paste applied area with water thoroughly.

5.Spray or Dip in Passivate 1  or  Passivate - 2 Solution & leave it for 15-25 minutes. Rinse with water thoroughly. ( Steps 1 & 5 can be avoided for Passivating Pickling Paste  on weld seam application)

For passivating Mirror Bright SS Areas

THE BELOW STEPS WILL NOT AFFECT SHINE OF MIRROR BRIGHT POLISHED SS AREAS AND PROVIDE CONTAMINATION & STERILE PARTICLE FREE PASSIVATED SS SURFACE.

1) First apply Passivating Pickling Paste in weld seam & surrounding areas with a nylon bristled plastic brush. After 10 to 30 min. wipe with cloth or plastic brush & wash water thoroughly.

(Application of Passivating Pickling Paste ensures that black & red spots do not come on & near weld seams area as generally observed some days after bright buffing.)

2) Complete bright buffing / polishing procedure to make surface mirror bright & shiny.

DISCARD STEPS 1 & 2 ABOVE, IF SS SURFACE IS ALREADY BRIGHT BUFFED OR ELECTROPOLISHED.

3) Remove oil, dirt buffing compounds etc. with RXSOL Degreaser which is Metal Free Degreaser. Add 50-75 gm/lit. in water & stir to dissolve.

Wipe S.S. surface with cotton cloth or pressurised spray for 2-5 min. or soak small parts for 10 min. Wash with water prpoerly.

4) Spray or Dip in  Passivate - 1 or  Passivat -2 & leave it for 15-25 minutes. then rinse with water thoroughly.

NOTE: It is better to rinse SS surface with 10 gm/lit RXSOL DEGREASER solution as the last step and then rinse with water to ensure complete removal of previously applied Passivate Pickling paste or spray from the surface.