I figured alot of you would be interested in knowign more about how records are made, so here it is:
Step 1 - Vinyl Mastering
From your prepared DAT, CD, MP3 or open-reel master, your audio signal is transferred through a console into a disc cutting lathe. The lathe cuts the audio signal of your tracks into a spiral groove on a lacquer-coated aluminum disc (lacquer master). One lacquer master is cut for each side of your record. A matrix number is scribed onto the lacquers (i.e., RCA-001) between the area between the label and lock groove. The matrix number is your master's identifier through the plating and pressing process.
Step 2 - Plating Plant - Two Step Processing for Stampers
The plating plant cleans the lacquer master, silvers, then plates it with nickel to make a part called a father. The father is used to make another part, called a mother from which a stamper is created. The lacquer father is the mirror image of the vinyl record final product. The resulting stamper is what
will be fitted into a mold at the pressing plant to form your records.
It is during process, that you should have your label art complete and sent to the pressing plant.
Most engineers recommend two-step processing of stampers for every 1000 records to preserve quality of pressings and/or if one gets damaged or lost in the pressing process.
1. master is cleaned
2. placed in nickel bath
plating plant nickel bath row
3. stamper separation
4. resulting stamper
(images above are courtesy of James G. Lee Plating Plant - Gardena, CA - circa 2000, prior to closing its doors)
Step 3 - Pressing Plant - Test Pressings and Vinyl Record Replication
Lastly, you would press the records at one of the many pressing plants available to you. The pressing plant first runs a "test run" of your record for pre-approval prior to pressing. This guarantees the quality of the record you will received from the plant. To avoid costly mistakes, carefully audition your test pressings BEFORE placing your final mass order for your records.
In pressing the finished vinyl product, the pair of labels that will appear on the records are placed on both the top and bottom halves of the mold. The press is activated which forms the vinyl onto the chrome plated stamper. Excess vinyl is cut away, leaving the final vinyl product. The record is then placed in a weighted stack to assure an even cooling that prevents bending or warping. The finished product is sleeved and shipped back to you.
pressing plant
stamper is fitted in press
stamper vinyl biscuit & labels