Product Specification
TIN BRIGHT ACID PLATING PROCESS-681
THIS IN AN ACID TIN PLATING PROCESS CONSIST OF TIN SALT-681 AND TWO MAKE UP, AS WELL AS MAINTENANCE ADDITION AGENT VIZ.,CARRIER BRIGHTNER – 684 AND BRIGHTNER – 682. THIS PROCESS PRODUCES MIRROR BRIGHT DEPOSIT OVER BRIGHT NICKEL OR HIGHLY BUFFED BRASS SURFACES IN RACK AND BARREL PLATING PROCESSES. THIS PROCESS IS EFFECTIVE FOR THE APPLICATION IN THE ELECTRICAL AND ELECTRONIC INDUSTRIES, FOR FOOD PROCESSING EQUIPMENTS, KITCHEN AND DOMESTIC TABELWARE, IT PROVIDES A BRIGHT CLEAN, NON-TARNISHING AND CORROSSION RESISTANT FINISH WITH EXCELLENT SOLDERABILITY.
BATH MAKE UP AND OPERATING CONDITION:
TIN BRIGHT SALT – 681 30 GM/LITRE
SULPHURIC ACID LR GRADE 105 ML/LITRE
TIN BRIGHTNER – 684 25-30 ML/LITRE
TIN BRIGHTNER – 682 15-20 ML/LITRE
DENSITY 17-90 BE
TEMPERATURE ROOM
ANODE CURRENT DENSITY 1.0-2.0 AMP/SQ.DM
CATHODE CURRENT DENSITY (RACK)0.5-3.0 AMP/SQ.DM
(BARREL)0.5-2.5 AMP/SQ.DM
AGITATION CATHODE ROAD MOVEMENT
FILTARATION OCCATIONAL
ANODE 99.99 % PURE
VOLTAGE 1-3 (RACK),4-7 (BARREL)
RATE OF DEPOSITION AT 2 AMP/SQ.DM 0.8 MICRON PER MINUTE
CONSUMPTION :
BRIGHTNER 682 250-300 ML/1000 AMP-HR.
BRIGHTNER 684 150-200 ML/1000 AMP-HR.
BATH SOLUTION PREPARATION :
1. P V C LINED OR HDPE PLASTIC TANK IS PROPERLY CLEANED WITH
DISTILLED WATER.
2. FILL THE TANK WITH HALF THE VOLUME OF WORKING LEVEL.
3. ADD CAUTIOUSLY REQUIRED QUANTITY OF L R GRADE SULPHURIC ACID
WITH ENOUGH STIRRING.
4. ADD REQUIRED QUANTITIY OF TIN BRIGHT SALT – 681, SLOWLY WITH
STIRRING.
5. DILUTE THE SOLUTION WITH DISTILLED WATER TO ABOUT 90 % OF
FINAL VOLUME.
6. ALLOW THE SOLUTION TO COOL TO ROOM TEMPRATURE .
7. ADD WITH VIGOROUS STIRRING, CARRIER BRIGHTNER 684, AND
MIX WELL.
8. ADD BRIGHTNER 682 WITH STIRRING.
9. BRING THE OPERATING SOLUTION TO FINAL VOLUME WITH DISTILLED
WATER AND START PLATING.