M20 or M21????
Page 1 of 3 123 LastLast
Results 1 to 10 of 24

Thread: M20 or M21????

  1. #1
    Registered Member
    Join Date
    Jan 2011
    Location
    Cincinnati, Ohio
    Posts
    36
    Rep Power
    11

    M20 or M21????

    I have an RV coming up and would like to get everyones opinions as to which I should choose to seal it with.

    I am looking for the longest durability.

    Which should I choose?

    Thanks!

  2. #2
    Manager - Meguiar's Solutions Hub Brian Hann's Avatar
    Join Date
    Feb 2005
    Posts
    563
    Rep Power
    22

    Re: M20 or M21????

    M21 is newer technology and offers better durability and longevity.
    That is not to say that M20 is not a great product also.
    Brian Hann
    Manager - Meguiar's Solutions Hub
    Meguiar's Inc.
    Irvine, California
    bhann@meguiars.com
    (800) 854-8073 *3870

  3. #3
    Mr. greg0303's Avatar
    Join Date
    Nov 2009
    Location
    Brooklyn New York
    Posts
    2,903
    Rep Power
    69

    Re: M20 or M21????

    Hi Troy,

    There's some difference between these two products:

    M20 Polymer Sealant is a cleaner wax and M21 Synthetic Sealant is a finishing wax (sealant).

    I would say that if you finish not 100% LSP ready go with M20 but if you're satisfied with previous steps just protect your vehicle with M21.

    Due to some mild cleaners and polishing oils in M20 you shouldn't really use multiple layers of that product. But you could top M20 with M21 if you wanted.

  4. #4
    Registered Member
    Join Date
    Jan 2011
    Location
    Cincinnati, Ohio
    Posts
    36
    Rep Power
    11

    Re: M20 or M21????

    Thanks guys.

    Would M20 be better to use than M45 RV cleaner polish?

    The RV is in pretty good condition with light staining.

    Since I can top a wax M20 with a sealant M21? There won't be a bonding issue?

    Thank you for replying and your help.

  5. #5
    Registered Member Murr1525's Avatar
    Join Date
    Oct 2004
    Location
    Pittsburgh, PA
    Age
    41
    Posts
    19,277
    Rep Power
    240

    Re: M20 or M21????

    M45 would be better for cleaning and polishing.
    2017 Subaru WRX Premium - WR Blue

  6. #6
    Registered Member
    Join Date
    Jan 2011
    Location
    Cincinnati, Ohio
    Posts
    36
    Rep Power
    11

    Re: M20 or M21????

    That's what I was thinking too.

    I am thinking M45 followed by Collinite 925 or M21 which would be better? How long does M21 typically last?

  7. #7
    Mr. greg0303's Avatar
    Join Date
    Nov 2009
    Location
    Brooklyn New York
    Posts
    2,903
    Rep Power
    69

    Re: M20 or M21????

    Murr answered the first question I'll try the second one.

    M21 goes on top of any cleaner wax without any bonding issues.
    However M20 outshines it (finishes with more gloss) similar (not quite) to M26 High Tech Yellow Wax. But definitely M21 offers much longer protection.

    Troy, how about Meg's newest wax - Ultimate Wax. It offers the best of both worlds - longest protection and great shine.
    Our Administrator, Mike Stoops, posted couple days ago that he applied Ultimate Wax Paste with 4" Finishing Pad and DA polisher and even he got impressed (and you can imagine that not too many things in detailing world can impress him).

  8. #8
    Registered Member
    Join Date
    Jan 2011
    Location
    Cincinnati, Ohio
    Posts
    36
    Rep Power
    11

    Re: M20 or M21????

    Thank you that clears up a lot.

    You know, I was thinking about UW but I just dont know I want to use it on this RV. It's for a customer and I need to KNOW it will last. He doesn't really care about the shine. I think the UW is too new to me to try it on this-maybe my vehicle first. I have a tin of it i plan to use soon and am looking forward to it.

    How long are they saying it lasts? It is a polymer wax also, correct?

  9. #9
    Mr. greg0303's Avatar
    Join Date
    Nov 2009
    Location
    Brooklyn New York
    Posts
    2,903
    Rep Power
    69

    Re: M20 or M21????

    That's correct, it's 100% synthetic.

    You can apply UW as a very thin coat. It also uses advanced cross-linking which makes it last longer than M21 or Next Tech Wax 2.0 .

    I understand your point that you'd rather experiment with it on your own time. Good way to get fully familiar with the product and see what it can do.

    http://meguiarsonline.com/forums/sho...t=Ultimate+Wax

  10. #10
    aka 2hotford Tim Lingor's Avatar
    Join Date
    Jan 2004
    Location
    Okanagan Valley, BC
    Posts
    4,544
    Rep Power
    394

    Re: M20 or M21????

    Just to chime in...

    1. Meguiar's M20 Polymer Sealant is a polymer sealant and not a cleaner wax. It is a polymer and wax blend and is quite different than a true cleaner wax like M06 Cleaner Wax or M66 etc. Yes, it does have mild cleaners but it is not a true cleaner wax. On a boat or RV, I use M20 about 90% of the time. Most of the time, I apply two layers for uniform coverage.

    M21 is a full synthetic sealant. It works very well, and provides a deep rich and wet looking finish.

    M20 works much better in the cold, and applies and removes incredibly easily. In terms of longevity, M21 wins, but not by much. I have used literally gallons and gallons of both products and their difference in longevity is negligible (at least in my environment).

    2. M45 is a pure polish (just like M07, M05, M81) which is designed to add TS oils to the gel coat etc to add richness to the paint/gel coat. It is not a cleaner type product. For cleaning in more of a one step, try M50 Cleaner Wax.

    Perhaps people meant M44 Color Restorer?

    M44 is a very mild cleaner that works very well on gel coats.

    If you need something stronger, M67 by hand or machine or M49 by rotary.

    I hope this helps!

    Tim

Page 1 of 3 123 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Blackfire Wet Diamond VS. M20 (M21)
    By Krzemienr in forum Meguiar's Professional Lines - Mirror Glaze, Detailer, PRO Hybrid Ceramic & Other
    Replies: 4
    Last Post: Nov 14th, 2009, 01:25 PM
  2. M20 vs M21
    By lgs72 in forum Professional Line - Product Reviews
    Replies: 40
    Last Post: Mar 7th, 2007, 11:50 AM
  3. G-100 suitable for M20 & M21?
    By MonsterPink in forum Machines - The Dual Action Polisher
    Replies: 7
    Last Post: Mar 7th, 2007, 12:23 AM
  4. M20 vs M21 vs M16 vs NXT
    By poyo in forum Detailing 101
    Replies: 30
    Last Post: Dec 19th, 2006, 09:24 AM
  5. M20 vs M21 vs M16 vs NXT
    By poyo in forum Detailing 101
    Replies: 1
    Last Post: Nov 17th, 2006, 04:35 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •