Re: Gibson Pump Polish safe on Rickenbacker 360?
Posted: Fri Dec 28, 2018 2:40 pm
Silica is not silicone. Silica is essentially super fine sand. It is in there with the wax to add some polishing ability to the wax (which basically has no real polishing ability by itself). Polishing is done by abrasion, and to do that, you need to add some sort of really fine abrasive. Other mineral additives can be something like kaolin (a clay - as in both Scratch-X & Zymole). The neat thing about it is that as you polish with it, the particle size gets broken down into finer and finer bits - essentially changing the abrasive grit size as you work to finer and finer grit sizes. Any product that claims it is a "cleaner wax" is likely to contain some sort of abrasive grit to do the cleaning. It may or may not contain silicone, which tends to speed up the process of creating a new, shiny look by saturating oxidation so that it is less visible.
Even Xymole contains a some silicone. This is from the Zymole MSDS
And here is the definition of that stuff.
"Polydimethylsiloxane, also known as dimethylpolysiloxane or dimethicone, belongs to a group of polymeric organosilicon compounds that are commonly referred to as silicones. PDMS is the most widely used silicon-based organic polymer, and is particularly known for its unusual rheological properties. Wikipedia"
It is absolutely true that residual silicone can cause horrible problems when painting or refinishing something and it is very difficult to remove it all before painting. Contamination causes your paint or varnish to "fisheye" - small circular voids open up where the wet paint won't stay put, no matter how many times you paint over them. If you have never encountered fisheyes from silicone during a painting project, consider yourself blessed.
So the key to silicone in polishes is pretty much a question of how much the stuff can contain before it causes residual silicone problems - if the guitar ever needs some finish or touch-up work. I don't know the answer to that one - and there may be different answers for different finishes. Zymole has proven to be safe. Gibson guitar polish certainly could be as well, and it would not surprise me, but we don't know for sure. Other polishes from hardware or automotive stores and most likely any infomercial "magic" instant polish may not be.
Even Xymole contains a some silicone. This is from the Zymole MSDS
And here is the definition of that stuff.
"Polydimethylsiloxane, also known as dimethylpolysiloxane or dimethicone, belongs to a group of polymeric organosilicon compounds that are commonly referred to as silicones. PDMS is the most widely used silicon-based organic polymer, and is particularly known for its unusual rheological properties. Wikipedia"
It is absolutely true that residual silicone can cause horrible problems when painting or refinishing something and it is very difficult to remove it all before painting. Contamination causes your paint or varnish to "fisheye" - small circular voids open up where the wet paint won't stay put, no matter how many times you paint over them. If you have never encountered fisheyes from silicone during a painting project, consider yourself blessed.
So the key to silicone in polishes is pretty much a question of how much the stuff can contain before it causes residual silicone problems - if the guitar ever needs some finish or touch-up work. I don't know the answer to that one - and there may be different answers for different finishes. Zymole has proven to be safe. Gibson guitar polish certainly could be as well, and it would not surprise me, but we don't know for sure. Other polishes from hardware or automotive stores and most likely any infomercial "magic" instant polish may not be.