High Fill Primer Question

gboy · 08-01-2005, 08:04 AM

I have a scratched up dash and I used high fill primer to cover. However, It covers a lot of the area well except for small imperfections.

QUESTION 1...I have continued to spray primer, but when I sand it seems they pop up again. WHAT GIVES?

QUESTION 2...Also, if I don't sand down the primer to perfection, can layers of paint be wetsanded to get the finish I need?

Thanks for your help.

gboy · 08-01-2005, 01:32 PM

nobody has a suggestion?

burton78 · 08-01-2005, 01:37 PM

The paint will not hide the scratches, in most cases it will amplify them. If you cant fill a section sand it down and use glazing putty. Then smooth the glazing putty and use a regular primer to finish up or the filler. Then of corse use a guide coat to get it smooth.

thanatos106 · 08-01-2005, 01:58 PM

gboy · 08-01-2005, 02:44 PM

What is a guild coat??

SickVette · 08-01-2005, 03:00 PM

High fill primer will fill scratches but not all imperfections. Apply your first coat very heavy. I lay it on till it just starts to run. Then sand it with 320 grit. Then I apply two more coats without the runs and wet sand with 600. If that does not get out all your imperfections you can use spot putty that is designed to go over top of primer. Should be available where you bought the primer from.

If you are applying base coat clear coat you can wet sand your base coats. After doing the steps above I lay down two coats of base followed by wet sand with 1000 and then two more coats of base. Some colors will require more coats and you have might have to change up for those colors....such as yellow,silver,metallics, and candies. After base is good apply clear. Often I am able to not sand or buff the clear because of the prep of the base coats. Sometimes it needs to be wet sanded with 1500 up to 3000 and then buffed. Keep in mind most of what I paint is brought to a very high deep shine. If you are looking for a factory finish you will not want to do several of these steps.

What burton is saying is a guide coat not a guild coat and for what you are doing a guide coat will do nothing for you. A guide coat can be used during the body work phase of the project. What you would do is use a flat black paint and dust the project with it. You apply a dry coat of paint. Then when the paint dries you continue to sand the piece. Dark spots will appear and let you know where the low and high spots are in your body work. Some people use guide coats often, I do not. For your particualr situation a guide coat will not help you because you have minor imprefections and you know where they are. Use a spot putty to fill them, sand, and then paint.

burton78 · 08-01-2005, 06:07 PM

Quote: Originally Posted by gboy

What is a guild coat??

Sorry, Guide coat....... dont mind me I just needed more coffee

I use guide coats for everthing I do. I dont like seeing scratches in my work show up in the final coats. Thats because I will never sand base coats. Metalics are a pain to sand correctly and I would much rather get the orange peal (If any) by sanding the clear coat.

SickVette · 08-01-2005, 08:59 PM

I agree on metallics but I can not see why a guide coat would be used over top of primer? Does not make any sense.

I prefer to sand my primers and base coat so that I have max thickness of my clear coat. Not to mention I can not high speed worth a darn.