Hello Friends...!!
1st Of All EID Mubarak To All Of My Friends and Readers/Viewers. 
I Know Its Long Time Since I Didn't Add Any Of Informative DIY In this section As Busy Life Schedule But Now It Will Be something More Interesting most of the peoples are looking for nowadays....!!
Automobile Paint Job As A DIY Is Not As easy as it look and most of people still can't try it due to so many reasons.....!!
Still I Have been Thinking for months to perform this DIY myself reason is also some bad experience from my B-13 Paint Job I Get It done recently So i Myself Think To Give It A Try......!!
So Here I am Sharing You My progress Till Now...as I am Almost Bored On EID Holidays Mostly So I Collect Stuff For This DIY In ramadan and was ready to perform in EID Holidays....!!
So Here are Pics....!! Comments And welcome and Any question and queries are also welcome.....!!
Requirement...!
100-200-400-800-1200-1800-2000 Grit Sand Papers....!!
Acrylic Lacquer Paint(Choose Your Color And Shade) 0.5L Approx For 4 Rims Inside Out...
Clear Coat + Hardener...For 0.5L Paint...!!
Primer(Depends On Surface and Color Chosen)
Lint Free Cloth
Bucket Of Water(For Wet Sanding)
Paint Gun(Air Or Airless)
Respirator Mask (That's Must For Paint Job Else Its Harmful Job)
2 -3 Liter of Good Thinner(Paint Thinner)
Good Ventilated Room Or Place..
Wasted Newspaper + Masking Tape......!!
200ml and 500ml Marked Beaker
And Most Important ....Patience 
As I Go With Pics You Will Got To See Use Of Each and Every Thing i Mentioned...!!
Color + Primer + Spray Gun + Blahhh ...You Can See

Respirator Mask.....Its A Must Thing To Have...Else You Will Be Inhaling Lots Of Harmful Paint and Toxic Thinner...Not At All Good For Health And Lungs

To Start With Cleaning Rims And Started Sanding With 100Grit Sand Paper (Wet Sanding) Immerse Sand paper In water And Sand...Don't Let it Dry....If It gets dry...Make It wet Again....!!
After 100Grit Sand Paper It Started To Look Like This!!!


100Grit Sand Paper

After 100Grit Wet Sanding...Clean with Lint Free Cloth And Inspect Surface....Scrap Any Peel Off Paint And Again Start With 400Grit Sand Paper
After 400 Grit Sand Paper Its Smooth Now.....!!

It Will Get Smoother As You Increase Your Grit No...It Varies From Surface To Surface.....400Grit Is Sufficient For My Need As I Have To Apply Primer 1st Before Final Color Coat....

400Grit Sand Paper...Remember Wet Sanding.....No Dry Sanding...

Water Bucket For Sanding Purpose....


After Sanding Clean The Surface Using Lint Free Cloth And If Possible Give Them A Wash So None Of Sanding Residue Left Over...Then Clean It And Dry.....!!

Its Time To Prepare Paint.....!!
Preparing Paint And Primer(Base Coat) Is Very Important....I Use Ratio 1:1.5-2 For Primer.....(1 part Primer..1.5-2 Part Of Thinner)..It Depends On Your Product + Spray Paint Gun That How It Comes Out...If Your Gun Can't Spray Thicker Viscosity Enamel Then you Have Thin It down.....!!
For Perfect Ratio And No Guesses...I Get Marked Beakers To Prepare My Color Perfectly With No Rough Ideas....
Here I Am Preparing Primer.....!! Remember...Mixing Ratio is Very Important...If You Dont Do It Correct...either It comes Too Thin or Too Thick.....

Here I Prepare My Painting Place...Its Just Before My Home's Roof Gate....Its A Good Ventilated Place Easily Allow Thinner and Paint Toxic Fumes To Get Away....Don't Spray in Your Room Or Place Near Your Living Room....!! Masked Place With Newspapers.....!!

I Adjusted And Tested Spray Gun Of Rough Place 1st Then Apply On Rims....!! Here Is How It looks After Sprayed...!

Experience Come With Practice...More You Spray Better You Learn.....!! Just Try That It Comes Nicely...If You Mess It....No Problem...Just Clean The Access paint with Cloth And Start Again.....Adjusting Your Gun And Distance...

Finally....Primer Is Applied On All 4 Rims And Kept For Drying....

That's All For Today...Will Came With Next Process Of Fixing Primer Job And Smoothing It Again for Final paint Job.....!!
Day II Updates On Page 2
Regards
Farrukh Ali
SER_GTR
Tips Tricks And Precautions
Always Use High Quality Paint Primer And Most Important A Good Quality Thinner....!!
Never Use Thinner Available In Bottles At Local hardware Stores...Its Pathetic In quality and Can ruin Your Expensive paint....Always get good Quality Thinner From Auto Paint Stores
Get Atleast 4 Liter Of Thinner As Its Sufficient For Your Primer Paint Job .....!!
Always Use Respirator Mask....Never Paint w/o That....!!
Always Try Wet Sanding And Use Proper Grit Depending On Sanding Job And Surface...!!
Mix Primer In 1:2.5 Ratio(1 Part Primer...2.5 Parts Of Thinner) Use Beaker For Perfect Ratio Matching...!!
Mix Base Coat(Color) In 1:3 Ratio(1 Part Paint...3 Parts Of Thinner) Use Beaker For Perfect Ratio Matching...!!
Mix Clear Coat + hardener +Thinner In 3:1:2 (3 Part clear Coat...1 Part Hardener.....2 Parts Of Thinner) 2 Parts of Thinner Can be Also Made 3 Parts Depending On Mixture You Got....!!
Make Sure You Mix And Stir Thinner With paint/primer/clearcoat nice enough and make it a perfect mixture....else it results in fisheyes on painting surface....!!
Wait 15-20min After Apply 1st Coat.......And Then apply 2nd Coat....!!
Clear coat Should be Applied within 12-24hours Maxx of last base coat applied.......!!
Use Gloves While Sanding/Mixing/Painting As Sanding Can Scratch Your Hands Badly And Paint/Primer Is Highly Adhesive And Can Cause Long lasting Contact with Skin....!!
Test Your Spray Gun On Some Cardboard With Paint/Primer Mixed And ready To applied And Adjust accordingly....Spray Some on it before Putting On Desired surface.....
Have Patience While Painting...Don't Be In So Much Hurry.....Its A Time Taking Job And So Much Speeding Can ruin Your Paint Job
Air Type Gun Details And Spec
You Need 30-50psi On Spray Gun Depending On Job...So Air Compressor Bought Should Provide Stable 60psi-90psi....Thats Enough......!!
For Priming Base Coat and Clear Coat...Get A Single Gun Having 1.3-1.4mm Nozzle.....If You Can afford 3...Get 1.2-1.3 For Clear Coat 1.5-1.6 For Base Coat and Around 1.8-2.0 For primer.....!!
Get Gravity Feed Spray Gun As It Have Its Own advantages Over Sponge type....!!
HVLP guns are also Best And better among All.....If You Can Afford One....!!
Get Pressure gauges on correct location to exactly know how much Psi you are running on...