Color Sanding

Color sanding removes orange peel, nibs (dust), fish eye (contamination), and other imperfections and it gives a smooth glossy mirror finish when complete.  Unlike what the name implies, color sanding is only performed on the clear coat, never on the color.

On the inside of our door there is only one area that's visible when the door is shut. It's the area shown below. All other areas are either covered with chrome, weatherstripping or door panels. We will color sand this area only.

If you click on this picture you will see we picked up a gnat.  Bugs can be difficult to remove because they can wiggle down into the paint.

I start by wet sanding with 1000 grit wet/dry paper.  I use a spray bottle with soapy water to lubricate and rinse the area as I sand.  I wipe the area frequently with a clean cloth checking the cloth to make sure I don't see any color.  If I see even a hint of blue I'll know I can't sand in that area anymore.  In this picture the gnat and the orange peel are still present and require more sanding.

I intentionally avoid sanding any area with rivets.  It's impossible to sand in these areas without sanding through a painted rivet.

The imperfections are gone.  Now it's time to remove the scratches left by the 1000 grit sand paper.

1500 grit sand paper removed the 1000 grit scratches.  2000 grit was then used to remove the 1500 grit scratches.  You can see where this is going. 

Cutting compound on a wool pad was then applied with an electric buffer.  That was followed by a swirl remover on a foam pad.

I think the results are spectacular.  Compare the first picture with this picture and judge for yourself.

What happened to the bug you ask?   Well... he's still there.  I stopped sanding when I saw a hit of blue on the wipe rag.  After long deliberation I decided to just leave him alone.  If he were on the exterior I'd have to re shoot the door, but he's not.  Besides, this guy is so small the only people that will ever know about him are those that follow this blog with a passion.  This will be our secret.

I think we should name him Wiggles.

First Color - Lapis and Cobalt Blue

The paint on our Corvette will be House of Kolor, one of the finest custom paint manufactures in the world.  Check them out here:  http://www.houseofkolor.com/hok/index.jsp

Several weeks ago we started working on the door jambs preparing them for paint.  The doors were sand blasted, rust was removed, weld repairs were made then several coats of primer were applied followed by lots of sanding.   This green 2 part primer is KP-2CF-A (yellow) mixed with KP-2FC-B (blue).  Just before this picture was taken the primer was scuffed with red Scotch Brite pads to help with adhesion.

Black Ko-seal II was applied next.  This is a high quality primer sealer intended to increase the bond between the primer and the top coats and it prevents the topcoats from soaking into the primer and reducing gloss.  Ko-seal II comes in black or white.  We chose black because we want our blue to be as dark as possible honoring the original color of the car which was Daytona Blue.

Lapis Blue base coat, BC05, was applied about an hour after the last coat of Ko-seal.  Lapis Blue was chosen from the House of Kolor color chart several months ago by Ty, Gerri and myself.  3 medium coats of this metallic blue were applied then allowed to dry for 15 minutes.

5 coats of Kandy Apple Cobalt Blue, UK5, were applied next.  Candy colors are very difficult to apply without streaking.  One of the ways to reduce streaking is to apply candy color over the same color base coat, which is exactly what we did.  After the candy, 3 wet coats of UFC35 clearcoat were applied.  UFC35 is an ultra-high gloss, chemical resistant, flexible clearcoat that will resist minor stone brusing.

So how did it turn out?  Gerri and I think it's absolutely stunning.  We could not be happier.

The following pictures do not do the paint justice but they are the best I could photograph.  In the sun the metallic is dazzling, in the shade it's a beautiful dark blue showing no metallic.  Cruising at night the car should look black.  Lester, you and Jacquie NEED to come to Cool Desert Nights to see this.

Double click on the pictures to see the metal flake.

Too bad this gets covered up with weatherstripping.

It's beautiful!

The paint will dry for several days before we start the color sanding process.  Color sanding will eliminate any orange peeling, nibs and/or blemishes.   After color sanding I hope to buff and polish the paint to perfection.  Wish me luck!