The difference is most definately due to the amount and type of oil in both products. Despite the possibility that Mother's has silicone oil in it, my dad is hooked on using it on his
KLASSE'd car and there is no grabbing it out of his hands.
A MSDS sheet shows little of the actual ingredients of a product. It only has to show potentially harmful ingredients and company's are NOT required by law to supply them to retail customers.
For about 3000-4000 bucks per sample, the chemist's where I work can analyze any product.....let me know if you want anything analyzed!
Also, PLEASE be careful when referring to silicones. All silicones are not bad, but silicone oils found in some tire dressing do deteriorate rubber over time. It is not true that they are bad ONLY after you stop using them. They are doing harm the whole while, but you do not see the damage till you stop using them, in general. On paint, silicone oil can interfere with a repaint and is very difficult for a body shop to remove as it finds it's way into pits and chips in the paint. Finally, there are many quality products out there that contain silicone compounds or polymers that work well. Please be careful when explaining this as not to mislead and misinform........