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What grit to use on clear coat?

post #1 of 4
Thread Starter 
So I've got into the final painting stages of my case and have two coats of clear coat on, but they are fairly uneven and I think they could stand a sanding and polishing before applying the final coats of clear coat and starting my build.

I have 800, 1000 and 2000 grit as well as some TurtleWax rubbing compound for finishing it off. (I doubt I'll get the super shiny finish I hope for, but for my first ever paint job I'll be happy)
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My Current Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k Asus Maximus IV Gene-Z EVGA GTX 480 8 GB Mushkin 996997 Redline 2133 9-11-10-28 
Hard DriveOptical DriveOSMonitor
Intel X25-M G2 80GBx2 RAID0 LG DVD ROM Win7 64 Samsung SyncMaster 245B 
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G15 Corsair AX850 Antec P180 Mini Razer Naga 
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post #2 of 4
Quote:
Originally Posted by zlojack View Post
... but they are fairly uneven
That can describe a number of problems.
Runs: Using a single edge razor blace, held perpendicular to the surface, to gently scrape off the run and then light sanding until it is even with the surrounding finish will fix this.

Orange peel: Sanding with sufficient grit to make the surface smooth again. Using a sanding block will help to see when the ridges have been removed.

Uneven spray: Light sanding back to a smooth, even surface.

Repairing any of the above will require recoating again prior to a final coat.

Generally, a final coat is only applied after the underlying finish is smooth, as any imperfections will show through. Sanding off all of, or of most of, the previous coats may be required. Before a final coat, a light scuffing with 0000 steel wool (to to give the final coat something to grip to) is all that is required. The finish should appear dull, not glossy, after steel wooling.
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My System
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CPUMotherboardGraphicsRAM
FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
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post #3 of 4
Thread Starter 
Thanks for that. I think my issue is uneven spraying. The conditions for painting are not ideal (wind, cold etc)
My Current Rig
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CPUMotherboardGraphicsRAM
i5 2500k Asus Maximus IV Gene-Z EVGA GTX 480 8 GB Mushkin 996997 Redline 2133 9-11-10-28 
Hard DriveOptical DriveOSMonitor
Intel X25-M G2 80GBx2 RAID0 LG DVD ROM Win7 64 Samsung SyncMaster 245B 
KeyboardPowerCaseMouse
G15 Corsair AX850 Antec P180 Mini Razer Naga 
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My Current Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k Asus Maximus IV Gene-Z EVGA GTX 480 8 GB Mushkin 996997 Redline 2133 9-11-10-28 
Hard DriveOptical DriveOSMonitor
Intel X25-M G2 80GBx2 RAID0 LG DVD ROM Win7 64 Samsung SyncMaster 245B 
KeyboardPowerCaseMouse
G15 Corsair AX850 Antec P180 Mini Razer Naga 
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post #4 of 4
to be honest if its to glosy it shows everything,put a few coats of clear and get some 2000 grit and lightly sand it or take away the gloss,imo
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The little beast
(15 items)
 
  
CPUMotherboardGraphicsRAM
i3 3320 BIOSTAR TZ77A ONBOARD 4 x2 (8) GIGS 1600"s OF RED TRACERS 
Hard DriveOptical DriveCoolingOS
WESTERN DIGITAL 500 GIG AAKS 2X Lite on dvd-rw burners GAMEMAXX 300 BY DEEP COOL win7 64 bit PRO 
MonitorKeyboardPowerCase
ACER 23 LED,LCD labtecc- keyless key board ocz 700 watt STEALTH X STEAM RAIDMAX DIRKTOOTH: "SMILODON" 
MouseMouse PadAudio
microsoft wireless stock ONBOARD 
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