M105... cant get right. Video inside

baseballlover1

New member
well guys... i cant get it right! Before i was working it too much... now i think im working it too little. What am i doing wrong?!?!









This is on white 4 inch pad btw.
 
I haven't had a chance to use 105 yet (it just came today) but based on that video I'd guess you aren't working it enough.
 
Based on my experiences I was told to work it for about 15-20 seconds at about 1500 rpms. I am sure some of the other masters will chime in. From my observations it doesn't look like you are working it fast enough.
 
I see 2 things that you do opposite of me (and I have had good results with the stuff). I put a couple of drops on the panel. I then turn the rotary on to 1000, and set the trigger lock (with the rotary held up off the panel). With the rotary running, I pick up the polish at 1000. The second I have picked it up, I up it to 1500rpm. I only work it about 20 seconds.



It looked like you put the polish on the panel, kind of set the rotary on the polish, then turned it on - I couldn't really tell for sure un the video though.
 
I work it slowly with moderate pressure at 1000 rpms for 30-40 seconds per section. I can more than double the work time with not much reduction in cut if I mix in 30-50% Optimum Compound.



Looks like you aren't working it long enough and moving the rotary too quickly.
 
The problem is the size of the pad you are using. a 4 inch pad on a rotary needs to run at much higher speeds than a 6, or 8 inch pad.



Rotaries and DA's work very differently with pad sizes, whereas a DA and a 4inch pad works a product more than with a 6 inch pad, a rotary with a 4 inch pad will work the product less.



For example, at 1000 RPM, the outer edge of a 4 inch pad will travel 12,560 inches per minute, or ~210 inches per second.



The outermost edge of a 6 inch pad, at 1000 rpm, will travel 28,260 inches per minute, or 471 inches per second. You get more than twice the polishing action with the 6 inch pad.



On DA you need the smaller pad to be able to use more pressure to create more friction without bogging down the machine, but with a rotary, machien bog down should not be a problem.
 
My biggest concern is you're using too small of a pad combo(especially foam) for such a large area. Why don't you use a larger, more standard setup? Plus, you might get better results working a smaller, more concentrated area too.
 
David Fermani said:
My biggest concern is you're using too small of a pad combo(especially foam) for such a large area. Why don't you use a larger, more standard setup? Plus, you might get better results working a smaller, more concentrated area too.





Yea, i liked the small pad because i could focus more on certain places.
 
weekendwarrior said:
I see 2 things that you do opposite of me (and I have had good results with the stuff). I put a couple of drops on the panel. I then turn the rotary on to 1000, and set the trigger lock (with the rotary held up off the panel). With the rotary running, I pick up the polish at 1000. The second I have picked it up, I up it to 1500rpm. I only work it about 20 seconds.



It looked like you put the polish on the panel, kind of set the rotary on the polish, then turned it on - I couldn't really tell for sure un the video though.





I picked up the bead. I think it was hard to tell also and then hesitated since it was set for a much higher RPM and then turned it down.



and i dont think that would have much of a difference in the end result.





I think that i have been going to 2 different extremes, too long and not long enough. I just HATE having to scrape the residue off. I just couldnt find my damn OP today. Im guna put some 106 or something with it tomorrow.
 
Well, I'll chime in with my $0.000002 (after taxes). I use a rotary every day on BMW's for reconditioning, so here goes:



1. Pad size is way too small (except for headlight restoration). You are going to generate a lot of heat with that size and could burn the paint (this is from my own experience). Move to an 8" pad or the Meguiar's So1o 7" pads.

2. I work a small area (18" X 18" or so) slooooooowly, until the product disappears. And, never, ever, ever wipe compounded areas with a microfiber. That just induces more scratches. If you want to clean a compounded area, keep a bucket of ONR handy. There's enough lube in ONR to safely pick up the abrasive grit that's laying around.

3. If you are getting a caked on situation, you either have too much product on the pad or it's drying out too quickly. Try misting some plain water on the pad.



Finally, like Scott and others, I work the rotary between 1,000 rpm and 1,200 rpm.



Good luck



Toto
 
baseballlover1 said:
so toto your saying work m105 until it disapears completely? HMMMMM(!) i would like to here what todd or brian have to say about that.



I think he means until it clears out.



If you only wanted Todd or Brian's advice, why didn't you just PM them? :think:
 
Scottwax said:
I think he means until it clears out.



If you only wanted Todd or Brian's advice, why didn't you just PM them? :think:



Thanks for helping me explain what I was trying to get across Scott. My old brain is getting a little tired LOL.



I use the same process for 3M compounds as well as the Meguiar's products.



As a general rule, I use products that work that way: compounds, polishes, and sealants.



Toto
 
I agree with the others here-larger pad, polish it longer and move the buffer cord over your shoulder to prevent the cord from hitting the car!
 
Scottwax said:
I think he means until it clears out.



If you only wanted Todd or Brian's advice, why didn't you just PM them? :think:





I didnt mean it like that. I said that because they know 105 very well. The only problem is if you work it for a long time it is amazingly hard to remove.
 
baseballlover1 said:
I didnt mean it like that. I said that because they know 105 very well. The only problem is if you work it for a long time it is amazingly hard to remove.



Daniel: you might be using too much product if you have to remove any. When I first started using 105, I was using the same amount (roughly) as 3M stuff. Way too much and it caked on the wool pad, foam pad, and left some on the paint...and yes, it felt like removing concrete. So, I scaled back the amount and that did the trick.



Another tip: If you are using this outside in warm weather, try adding some Meguiar's #83 to the pad at the same time as you are adding #105. It will work longer and nicer IMO (although I probably diminish the strength of 105 by doing this).



Toto
 
Back
Top