A little late to this thread but I was just chatting with someone about M101 and looking up the MSDS
Don't use Meguiars products at all but have tested heaps of them since 1990
Now whilst it was said that m101 can take out heavy sanding marks with ease and by hand, why would you want to do it by hand and why use M101 when a Rayon pad that I've been testing since 2011 can take out 1000 to 1500 grit sanding marks by DA, RO or rotary with a single polish system or traditional light cut polish/swirl remover in 10 seconds and then jewelled down for a few minutes to get a light cutting foam quality finish. And except for a body shop doing a quickie as many do, why stop at 1500 grit when theres 2000 to 6000 grit sanding discs available.
Us detailers shouldnt be in this industry to take shortcuts, I never will
The rayon pads were made for 1000 grit and finer sanding mark removal and removing scratches from glass, they work superbly well on medium to very hard paint and finish down as good as MF and light cut foams on most paints and haze/marring free on hards
Want to make the finish even better with them, fit a sanding interface pad in between plate and pad on a rotary or a DA or change to a thicker, softer, plusher backing plate to finish with
I have two rotaries and many other tools including the dynabrade heads on both rotaries and I fit one with a stiff plate and the other with a thicker, softer plate and use the first plate to correct and grab the second machine to finish if I have the time, otherwise I just throw in the interface pad
I respect all the people here, especially the great Kevin Brown, Jason Rose and the people at Meguiars and kudos to the people at Megs for making this product, not putting the product down at all or saying I know more than anyone else, no way but my point is, I just wanted to share my preference of sanding mark and other heavy mark removal, sanding marks are fairly easy to remove most of the time, it's the straight line grooved scratches and other very deep marks that are harder I find thus why sanding discs are there just in case in my shop
I believe that in the future there will be a universal pad that's made of a material we havent seen yet that will will do anything you want correction and finishing wise with just a change of plate type, technique, machine and hand speed etc, all with one polish. Today and in the future, I will only use one polish for some work and two for the super high end work.
So I say get all these pads and choose the rayon, surbuf or velvet and denim with a softer polish before going whole hog with the M101 paint leveller. I'd rather use a single polish system with various pads, listed below than get out some mega abrasive levelling polish with a foam or wool pad. those pads are still good but I like the other pads more. I'm sure meguiars HQ have made this product so that it doesnt finish like **** unlike some manufacturers but it just isn't for me
We now have denim, velvet, Rayon, surbuf and microfibre from optimum and meguiars and now even better looking MFs from Flexipads in UK, my favourite manufacturer. And of course, the trusty old school wool and foam
who knows what else we will have in the future (human hair might make a good one hehe) and
Power tools with 3, 5, 8, 14,15, 19 and 21mm orbit throw as well as a tonne of DA backing plates from Flexipads UK from super stiff mega thin type to 16mm thick ultra soft ones for finishing
So lots of ways to change the cut up or down and improve the overall finish
Just wanted to share my thoughts. I'm sure M101 has it's place, it just wont be seen at my place
I'm mega passionate about paint refinishing and doing it the smartest and safest way possible whilst achieving world class finishes that preserve the paint as much as possible so no compounds, solvents, dusty polishes, short working time polishes regardless of how much water you spray on, no silicones or fillers.
Finish is always more important than cut
Happy to be corrected if I said anything incorrect in this post,
Happy and safe polishing everyone
Matt
http://www.flexipads.com/docs/FlexipadsCatalogue06.pdf
page 25 to 29 - MFs and Rayons