Cutting Power Between M105 and Meg UC

[350z00m]

is there a big difference in cutting power between megs m105 and Megs UC?

Jay

[tuscarora dave]

I think there is. UC is very easy to work with and does a good job if you're not in a big hurry. UC also has a lot of oils in it so it gives a false sense of correction. Wipe the oils away with IPA to see where you really are correction wise.

[350z00m]

i just did a another 370z red.. while it took out most of the swirls i felt like it wasnt correcting the way i wanted with Orange ccs pad.(5.5 in)... i have a 32 oz of m105 but havent tried it out yet. UC doesnt seem to get rid of the RIDS either.

Jay

[slickooz]

What is RIDS? sorry still new here.

[350z00m]

Random Isolated Deep scrat:dblthumb2:ches

[Niele]

What is RIDS? sorry still new here.
Here is a good article that will give more info on RIDS and other "Below Surface" paint defects:
Tracers - RIDS - Pigtails - Cobweb Swirls - Rotary Buffer Swirls - Holograms - Water Spots - Bird Droping Etchings - Micro-Marring (http://www.autogeekonline.net/forum/hot-topics-frequently-asked-questions/22234-tracers-rids-pigtails-cobweb-swirls-rotary-buffer-swirls-holograms-water-spots-bird-droping-etchings-micro-marring.html)

[Kurt_s]

I think there is. UC is very easy to work with and does a good job if you're not in a big hurry. UC also has a lot of oils in it so it gives a false sense of correction. Wipe the oils away with IPA to see where you really are correction wise.

I think TD is right on.

UC has more cut that Opt Compound II but less than M105 in my hands. Very easy to use. I use a PCXP with 5.5" flat pads as standard. I will normally use UC as a less aggressive first compound vs M105 as I step up with an orange pad. UC took water spots out of paint on an Audi A4 when WG TSR and OPT Compound II would not. M105 cuts faster than UC. I can buy UC locally and at about 1/2 the price per ounce vs M105.

UC finishes a little better than M105 but I still feel that I need to polish after either with an orange pad. If you have heavy correction and don't mind a little dust, get M105. Follow Kevin Brown's method precisely as I didn't and continue to learn M105 lessons (both will be staples for the time being as I have Opt Hyper Spray Compound that still needs a try). If you are in a bind and need an easy to use compound with cut that you can buy at the local autoparts store, UC is highly recommended.

[Mike Burke]

I used Megs UC the other day ( with a orange pad) and it worked very well on light swirls and was vary easy to work with .....I will be useing it again I'm sure....I might add that I did use M205 after and it came out great.

You can take a look at this

http://www.autogeekonline.net/forum/hot-topics-frequently-asked-questions/23583-aggressiveness-order-smat-products-might-surprise-you.html

I read the directions on the UC and didn't see any thing about useing a IPA wipe down to get rid of oils.....but I know alot of you like to do that step.

[350z00m]

i've been using the Megs UC... just i am not happy with the result with orange pad. was wondering if m105 would remove more defects then the UC.. with orange pad.. or do i have o start wetsanding to get id of the rids?..... :buffing:

Jay

[Kurt_s]

i've been using the Megs UC... just i am not happy with the result with orange pad. was wondering if m105 would remove more defects then the UC.. with orange pad.. or do i have o start wetsanding to get id of the rids?..... :buffing:

Jay

M105 will cut faster than UC. UC will work longer. If you follow Kevin Brown's method precisely, it apparently cuts faster. I will modify my method slightly to see if I can get a little faster cut.

If you are using a PCXP, 5.5" pads cut faster than 6.5" pads in my experience. I have not tried SurBufs yet (I just forgot to order them today) but they are supposed to give an PCXP the cut of a rotary with a PC.

If you are new to polishing, RIDs will be more evident when you remove typical swirls. It's hard to miss them against a clear and swirl free background. You may need to decide between leaving some RIDs vs minor wet sanding to remove RIDs/scratches.

[350z00m]

well... tomorrow i got a lexus to do.. i'm split the hood and do half and half with UC and 105 ... see which i like better/finnishes better ... i'll decide from there i guesss. dont remember wher ei saw it but...somone posted that they spritzed baby oil on the pad and used with 105 and gave them longer work time....but does that lessen the cut on 105? dont remember the post explaining that.


Jay

[WRAPT C5Z06]

I have not tried SurBufs yet (I just forgot to order them today) but they are supposed to give an PCXP the cut of a rotary with a PC.


Initially, that's what I thought as well, but that's not necessarily the case. TD got extremely good cut with a rotary only using a white pad and M105 on a heavily swirled black corvette. I tried surbufs on a black corvette and did not get near as good results. Surbufs will still give a lot more cut with a PC than any other pad on the market.

[slickooz]

well... tomorrow i got a lexus to do.. i'm split the hood and do half and half with UC and 105 ... see which i like better/finnishes better ... i'll decide from there i guesss. dont remember wher ei saw it but...somone posted that they spritzed baby oil on the pad and used with 105 and gave them longer work time....but does that lessen the cut on 105? dont remember the post explaining that.


Jay

I think I know which thread you were talking about. Mike Philips chimed in and recommend that you should follow the instructions the way they have it, because they have their own scientist working on the 105/205 for years. I haven't used the combo much but did a few test spots and it removed etching, water spots and swirls. I was amazed at what it can do with a DA.

[DetailedByPrecision]

i have both m105 and UC atm but i have only used m105 so far. i will do a 3 step paint correction on my car this weekend and i will give UC a try. i'll report back with my results and opinion on it.

[slickooz]

When people say 3 step paint correction, what does it mean? Compound, polish, wax?