Using Meguiar's 3000 grit Unigrit Finishing Discs

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kerenzv

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hi ,
i am new at deatling and just strated before two weeks ago i read a lot at this forum and also bought the complete guide for show car shine and learn a lot both from the forum and from the e-book, but today a selling agent of proudcts for car care and deatiling came to my work and offer me to buy the meguiaers dual action with the 3000 grit and told me that evryone now is using this method of buffing the car with the 3000 grit no matter what is the condition of the paint and using meguiers 105 and then meguiars 205 for finshing .
my question is if i can work this way because according for he was saying its take only two hours to do a car while it take me about 6 hours to do a car , i didnt find this in the e-book or at fourm so this way i ask if this is a good way to work on a car
or if it can destroy the color of the car and i would have a peobleam of fixing it?
 
I wouldn't say "everyone" is machine sanding cars.

If you've read this forum at all you know that the factory paint on new cars is very thing and sanding should be a last resort, not the first step.

It could be that his point was that machine sanding is an "option" as compared to grinding with a compound and a wool pad on a rotary buffer and this is an option but you shouldn't be sanding down every car you buff out and it's going to take longer than 2 hours no matter what you do.

Heck just doing a GREAT washing job takes about an hour when you include washing the wheels and tires and also drying the car.


Also keep in mind,

Sanding removes paint
Compound no matter how you do it removes paint
Polishing removes paint


When working on factory thin, hard paint, it's pretty easy to at some point in the process and in some place on the car strike-through the clear and expose the color coat.

Ouch....

More reading.... good question though.

If you see this sales guy again, ask him to join our forum and post his recommendations.


:D
 
kerenzv said:
hi ,
i am new at deatling and just strated before two weeks ago i read a lot at this forum and also bought the complete guide for show car shine and learn a lot both from the forum and from the e-book, but today a selling agent of proudcts for car care and deatiling came to my work and offer me to buy the meguiaers dual action with the 3000 grit and told me that evryone now is using this method of buffing the car with the 3000 grit no matter what is the condition of the paint and using meguiers 105 and then meguiars 205 for finshing .
my question is if i can work this way because according for he was saying its take only two hours to do a car while it take me about 6 hours to do a car , i didnt find this in the e-book or at fourm so this way i ask if this is a good way to work on a car
or if it can destroy the color of the car and i would have a peobleam of fixing it?
Click to expand...

Are you working at a body shop?
 
This sales rep must be in the business of selling paint jobs...
 
I wonder if he said "everyone uses 3000 grit now" because he meant that takes the place of using clay?

I know a shop that does this.

^ If substituting it for clay then it's wrong

I have 3000 3M i've had it since January and still have't used it, but 3000 does have it's place.

Clay I alway use
And a combination of light polishes/medium polishes and compounds depending on the situation, and pads.
 
I just wet sanded a little BMW 2002.
And not everyone is doing this and not every customer will pay for wet sanding.
I sanded/corrected for 16 hrs. That's a lot of money and my "mom taxis" aren't going to pay my wet sanding rate.
So no, not everyone is doing this.
 
Yes , I have a small shop just started befor two
Weeks more seriously but still only doing friends and
Family cars ,
 
Detailing by M said:
I just wet sanded a little BMW 2002.
And not everyone is doing this and not every customer will pay for wet sanding.
I sanded/corrected for 16 hrs. That's a lot of money and my "mom taxis" aren't going to pay my wet sanding rate.
So no, not everyone is doing this.
Click to expand...

According for what he said he just came back
From a shop that he sale them the meguiars dual action
And the unright 3000 and he did a black car
In just two hours with this , and that the car turn
Out like new.
I saw at the meguiars forum a post with this
Way of work and they also say that it's a fast way to work
 
Does using a meguiars 101 or 105 with cutting compound
is less aggressive then the 3000 grit?
 
If using 3000 you would still have to follow up with a compound and a polish

Which is what 105/205 is.

Not sure why he keeps on insisting on the 3000 grit. Might be the work you guys are doing? Not sure, but like I said 3000 does have it's place.

I'll listen to what others have to say.
 
kerenzv said:
According for what he said he just came back
From a shop that he sale them the meguiars dual action
And the unright 3000 and he did a black car
In just two hours with this , and that the car turn
Out like new.
I saw at the meguiars forum a post with this
Way of work and they also say that it's a fast way to work
Click to expand...

Whether it works or not really comes down to,

Top Coat Hardness

The softer the paint, the easier it will before the Meguiar's G110v2, a dual action polisher, to remove sanding marks, i.e. remove paint until the surface is flat and glossy.

The harder the paint, the more difficult it will be for a tool with a free rotating spindle assembly for a drive mechanism to remove paint until 100% of the sanding marks are removed.

It's all about removing paint and whether the system you're using is working on the paint in front of you.

I believe I taught the first public class on dampsanding with the Meguiar's Unigrit System as I did this at Mobil Tech Expo right after the system was launched. I'm confident there were training classes internal at Meguiar's but Mobil Tech Expo was the first big event after the system went public.

Here's the link to the threads...

Pictures from Mobile Tech Expo 2010


Here's the class...

0375.JPG


0394.JPG



Here's the demonstration on a black car...
0386.JPG


0410.JPG


A lot more pictures in the thread above.


kerenzv said:
Does using a meguiars 101 or 105 with cutting compound is less aggressive then the 3000 grit?
Click to expand...

Two different approaches.


1. Compounding a car with either of these products will be removing paint or in other words removing defects while leaving behind holograms assuming you're using a rotary buffer.

2. Sanding will remove defects but it will also be leaving a scratch pattern in the paint that you will now have to remove.​

M101 is a fairly versatile compound. M100 per the manufacture is a wool pad, rotary buffer specific compound.

Here's what I would recommend to you...

Get the system and practice on some demo hoods before using the system on your customer's cars. Talking about it on this forum is a great first start but at some point what's going to matter most is how the system works for you in your shop.


Find a system approach that works for you and your business model consistently. If you have other people doing the work besides yourself then make sure the system is working to your standards when your employees are doing the work.

Sanding with fine grit discs is a lot easier and faster than hand sanding with anything in my opinion. But there are a lot of other factors to consider.

If you're detailing cars for money, then time is an huge issue and make sure you're mattings your services to your customer, you shouldn't be trying to create a show car finish on every car that comes into your shop.

See my article here,

A few tips on starting a part-time detailing business
Match your services to your customer




:)
 
i dont insist about the 3000 grit i just try to tell, DEATILING BY M , that maybe he can try to use this way and maybe he will save a lot of time on wet sanding and insted of 16 hours it can take him 2-3 hours.
i am not going to use this way of work and this is the reason i asked here at fourm what people with exprience think about this and after all of the answers that you gave me i am for sure not going to use 3000 grit in my work , at least not at the start,
thank you for the answers
 
kerenzv said:
i dont insist about the 3000 grit i just try to tell, DEATILING BY M , that maybe he can try to use this way and maybe he will save a lot of time on wet sanding and insted of 16 hours it can take him 2-3 hours.
i am not going to use this way of work and this is the reason i asked here at fourm what people with exprience think about this and after all of the answers that you gave me i am for sure not going to use 3000 grit in my work , at least not at the start,
thank you for the answers
Click to expand...

When I said insisting, i meant the Meguiar's seller not you kerenzv. Sorry for the confusion, my apologies.
 
If you never did amy samdimg then stay away from to for now, work with a polish or mold compound.
If not you may have to visit a paint booth.
 
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