What you are hearing are the effects of the mold release coumpounds intermingled with the the vinyl formula used in the pressings.
Vinyl is more elastic than understood by many end-user. Michael Fremer's "Tracking Angle" contains a excellent article on LP composition for additional details.
The "holy-grail" of LP pressings were the early formula's used used to mix small batches of vinyl for classical recordings. Anyone/any Company that presses LPS in today's world is searching for those formulas.
The person that understands vinyl compounds is Martina Schoener , a record cleaning fluid designer who is a paid consultant to Garrard Loricraft Audio.
Martina was among several industry-insiders who observed the Steam Cleaning Process along with Terry O' Sullivan, CEO of Garrard Loricraft,as well as,a friend of Pierre Spray, CEO of Mapleshade Records : That person relayed the event to Mr. Spray who used the information as the basis for Phenophile Steam Cleaning Kit now retailed by Mapleshade Records for $150.00.
According to Martina, she interviewed many of the retired workers responsible for mixing the compounds. Many were interviewed very late in life and most are now deceased. Martina discovered the formulas were tightly held company secrets. She told me they were rarely committed to paper but instead were orally handed down to others in the trades. The European Trade tradition is different from ours and began to break down in the middle 1950's for ecomomic reasons.
Today, no one is really certian what the most exacting formula is comprised of and many chemists are making a good living attempting to reconstruct the "grail".
Steam Cleaning provides a way to remove any leaching compound(s). In my first published article/letter to "Listener" I noted the observation that all record cleaning fluids (known to me) leave a veil, I termed a "sonic-fingerprint". The sonic-fingerprint is the artifact/residue of the cleaning process & is present regardless if the fluid is homemade to Mega Buck. The final step to steaming is a steam rinse to remove all residues .
Stltrain advocates nerl water rinses. I also recommend using a pure water source ; Peak Battery Water ($3.00 a Gal.) ,however; Michael Fremer has mentioned that Aquafina is a extremely pure water source. No vacuum RCM has proven it can remove a sonic fingerprint. That is a fact. Steam has proven to be extremely effective in removing sonic-fingerprints. I believe that rinses may produce and even better finish to the Steaming process.
The above is a short-discourse on why Steam is an effective cleaning agent to vinyl LPS. Steam Cleaning is a process that needs to be followed step by step to get a satisfactory result. Rome was not built in a day & neither can one understand the results of Steam Cleaning without having done so for an extended period of time.
Record Cleaning is as much an Art as a Process , all learned and matured by time, much in the same manner as learning to set up a analog front end.
Vinyl is more elastic than understood by many end-user. Michael Fremer's "Tracking Angle" contains a excellent article on LP composition for additional details.
The "holy-grail" of LP pressings were the early formula's used used to mix small batches of vinyl for classical recordings. Anyone/any Company that presses LPS in today's world is searching for those formulas.
The person that understands vinyl compounds is Martina Schoener , a record cleaning fluid designer who is a paid consultant to Garrard Loricraft Audio.
Martina was among several industry-insiders who observed the Steam Cleaning Process along with Terry O' Sullivan, CEO of Garrard Loricraft,as well as,a friend of Pierre Spray, CEO of Mapleshade Records : That person relayed the event to Mr. Spray who used the information as the basis for Phenophile Steam Cleaning Kit now retailed by Mapleshade Records for $150.00.
According to Martina, she interviewed many of the retired workers responsible for mixing the compounds. Many were interviewed very late in life and most are now deceased. Martina discovered the formulas were tightly held company secrets. She told me they were rarely committed to paper but instead were orally handed down to others in the trades. The European Trade tradition is different from ours and began to break down in the middle 1950's for ecomomic reasons.
Today, no one is really certian what the most exacting formula is comprised of and many chemists are making a good living attempting to reconstruct the "grail".
Steam Cleaning provides a way to remove any leaching compound(s). In my first published article/letter to "Listener" I noted the observation that all record cleaning fluids (known to me) leave a veil, I termed a "sonic-fingerprint". The sonic-fingerprint is the artifact/residue of the cleaning process & is present regardless if the fluid is homemade to Mega Buck. The final step to steaming is a steam rinse to remove all residues .
Stltrain advocates nerl water rinses. I also recommend using a pure water source ; Peak Battery Water ($3.00 a Gal.) ,however; Michael Fremer has mentioned that Aquafina is a extremely pure water source. No vacuum RCM has proven it can remove a sonic fingerprint. That is a fact. Steam has proven to be extremely effective in removing sonic-fingerprints. I believe that rinses may produce and even better finish to the Steaming process.
The above is a short-discourse on why Steam is an effective cleaning agent to vinyl LPS. Steam Cleaning is a process that needs to be followed step by step to get a satisfactory result. Rome was not built in a day & neither can one understand the results of Steam Cleaning without having done so for an extended period of time.
Record Cleaning is as much an Art as a Process , all learned and matured by time, much in the same manner as learning to set up a analog front end.