question abuot sanding the body after paint

[tpliquid]

here is my problem. i did 4 coats on my car body. waited 2 weeks. i sand with 3600 grit sandpapaer. i sand it lightly. and it sands the paint off down to the plastic on edges and corners. how do you all do it so paint is sitll on it?

[fredo]

OOOh ! I have exactly the same problem

Please help !

[primera man]

Is it the primer or the top coat you are sanding ?
You need to take more care around the edges when sanding.
The paint will always be thinner on the edges, so be alot more careful

[nis.k.a.]

Tape the edges and corners.

[RallyRaider]

You need to be conscious of where you’re sanding, concentrate on the middle of the surface, keeping clear of the edges. Even if you use a sanding block the movement of your hand will tend to place more pressure on the edges, sanding them back quicker, as you found out.

[tpliquid]

ahhh ok ok, thanx !

[dag65]

3600 is too rough for paint , I use that for primer and bare plastic.
When polishing the paint I start at 6000, and like everyone above said be careful around the edges and scripts

[Vric]

Originally Posted by dag65

3600 is too rough for paint , I use that for primer and bare plastic.
When polishing the paint I start at 6000, and like everyone above said be careful around the edges and scripts

I use only the Tamiya Coumpound. 2 or 3 time and it's a miroir

did Tamiya restarted to make this ?

[1ofaknd]

i never sand my paint...only time i sand it with filler...my painjobs are mirrors even without clear coat.

[86_SR5]

I sand my bodies working from 1000,1500,2000 grits, wash and apply 2-3 coats of primer. Apply up to 4coats of paint, if rough I'll litely rub in circles with 2000 and gloss coat over it after washing and letting air dry. this has worked best for me.

[nis.k.a.]

Unless you have major skills sanding/polishing cloth will always give the best mirror finish. In my experience, if you paint fairly good 3600 is too rough. I usually start with 4000 and step all the way up too 12000. After that I remove the tape from the edges and corners and hit the entire area a couple times with Tamiya Compound. After that a couple wax coats.

This way has given me really nice long distance reflection. It's a lot easier to get up close reflection but distant reflection clarity is harder to obtain. To be honest, my R32 looks like I dipped it in vegetable oil. The finish is deep and full of gloss. Not to mention the nice reflections.

The most important thing is that not everyone paints the same so the polishing steps are going to differ. Basically find the best technique for you. This is going to require a lot of spare bodies/stripping but it's worth every minute in the end.

[DJ RaYgU]

Does anyone use Tamiya finishing abrasives? do they work good? just wondering...

[hirofkd]

The reason why the edge is higher than the rest is because of the deformation when releasing the parts from the mold. Consequently, there are ridges along the panel lines and around the edges. Before priming, smooth out those ridges with 1200 grit sand paper. That will reduce (but not eliminate) the risk. This is actually an important step in the body prep.