Infamous M105/M205 combo; why do I need M105?

[sgtmillhouse648]

I find that spritzing the pad with a bit of QD significantly increases the working time on the 105.

 

[ASPHALT ROCKET]

I find that spritzing the pad with a bit of QD significantly increases the working time on the 105.

If you are going to use anything trying to extend the time of a product just use water, do not use QD. Just like priming a pad, just use the product itself.

Also to BillH, next time 105 gums up like that, just use the product itself, it will take itself off of the paint, no need to break out your sanding paper.

 

[BillH]

Also to BillH, next time 105 gums up like that, just use the product itself, it will take itself off of the paint, no need to break out your sanding paper.

That is exactly what I thought, but an application of M105 by hand didn't cut it. Hopefully, it will be a non issue as I don't plan on letting it happen again. Remembering that M105 works a lot faster than M205 is enough.

Dumb question time:
One thing that I am a little confused about; When I use the M105 with the rotary, very quickly the surface goes gloss. If I stop at this point, there is very little to wipe down. With M205 and the orbital, it never gets to this point. When I stop, there is still a layer of polish on the surface that needs to be wiped off. That normal, or am I either not going far enough with the orbital or using too much product?

 

[Mike PhillipsMike Phillips is verified member.]

I find that spritzing the pad with a bit of QD significantly increases the working time on the 105.

Here's the official recommendation...

Using a wetting-agent with M105 and M205

Dumb question time:
One thing that I am a little confused about; When I use the M105 with the rotary, very quickly the surface goes gloss. If I stop at this point, there is very little to wipe down. With M205 and the orbital, it never gets to this point. When I stop, there is still a layer of polish on the surface that needs to be wiped off. That normal, or am I either not going far enough with the orbital or using too much product?

M205 is a wetter product, it has a dramatically much longer buffing cycle... don't think I've ever buffed it till it was gone or went to a dry buff... this is normally a good characteristic...

 

[Mike PhillipsMike Phillips is verified member.]

On the first panel I did, I thought I had burned the paint. There was what looked like curved ridges of material that was not removable by hand rubbing with M105.

I gently rubbed them with 3000, went over it again with M105 and everything is fine.

That sounds pretty drastic!

Apparently it was M105 that had dried on the surface? I now pay close attention and when the surface suddenly starts to shine I stop, and apply more material.

No problems since and I am about 3/4 done with the machine polishing of the car. (Would have been done sooner but 95 to 100 degree days in a non AC shop).

Make sure you're cleaning your pad often, this will help reduce problems associated with M105 gumming up... Also check out this thread for a few tips...

Tips for working in warm/hot weather or direct sunlight

Also to BillH, next time 105 gums up like that, just use the product itself, it will take itself off of the paint, no need to break out your sanding paper.

Good point, in fact there was a recent thread on just this topic...

Removing Compounding Residue

 

[ASPHALT ROCKET]

That is exactly what I thought, but an application of M105 by hand didn't cut it. Hopefully, it will be a non issue as I don't plan on letting it happen again. Remembering that M105 works a lot faster than M205 is enough.

Dumb question time:
One thing that I am a little confused about; When I use the M105 with the rotary, very quickly the surface goes gloss. If I stop at this point, there is very little to wipe down. With M205 and the orbital, it never gets to this point. When I stop, there is still a layer of polish on the surface that needs to be wiped off. That normal, or am I either not going far enough with the orbital or using too much product?

Not dumb at all but 205 is very oily. So it does not go dry as nearly as fast as 105 does. Sounds like you are working it correctly, just wipe the excess off and keep going.

Sorry for the late reply just got done doing a detail and thought I would check this thread out before going to bed.

 

[Bunky]

Why M105? Why do you have 10 different screw drivers in your tool box. You may need it on short notice. It is nice to have an assortment of products so you have options when you need them.

 

[ICEMAN]

Why M105? Why do you have 10 different screw drivers in your tool box. You may need it on short notice. It is nice to have an assortment of products so you have options when you need them.

good way to put it! i basically have 2 of everything in my toolbox when it comes to hand tools! 3 of a lot of things! i love flea markets!!