RTILOGO1.JPG (11604 bytes)Record Technology Inc.                     

  P l a t i n g  P r o c e s s
Pictures and descriptions by Gary Salstrom, record plating manager at RTI.

S t e p One
Upon receipt, the lacquer must be prepared for plating.
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Step Two
The lacquer is then soaked in a mild detergent to clean oil residues from the surface.

Step Three
After thorough rinsing with deionized water and a surface treatment with Stannous chloride, the lacquer is sprayed with customized silver (made from scratch at RTI) to make the surface electrically conductive.

Step Four
The lacquer is then mounted on a copper hanger and placed in a nickel sulfamate plating bath. RTI uses low temperature and low amperage to ensure proper duplication of the groove walls.

Step Five
After the master is made (14-16 hours), it must be prepared for plating to make the mother. After a quality control check of the mother, a stamper must be made to press the LP.

Step Six
The nickel mother is placed into a customized rotary plating tank to make the stamper.

Step Seven
The stamper must be carefully removed from the mother.

Step Eight
To keep the LP surface free of surface roar, the back of the stamper must be sanded to a near mirror-like surface.

Step Nine
The stamper is then centered, trimmed, formed, and washed before being delivered to Q.C. The stamper is then closely inspected before being passed on to the pressline.

Step Ten

Test pressings being pressed on a SMT record pressing machine at RTI.

RTILOGO1.JPG (11604 bytes)