Primer questions

Argeo · 03-11-2005, 07:08 AM

Hi, I primered car yesterday. Well not the doors and hood yet. Anyways, I put the Veriprime on and then the filler primer. My question is, how many coats of the filler primer do I need?

Also, of course my gun started leaking half way through so I have a several drip marks I have to address. What is my best way to address those. Will I have to strip and start over or will the wet sanding to follow take care of it?

Thanks,

David

afterburn 549 · 03-11-2005, 07:13 AM

No worries.....just long board them out........lots of times use two diff collor of primers as it will let you see whats going on better.......high and low spots......to do this right you will become good friends woth your long bord...this is really where the good looks come from.......lots of elbow grease.

jpnovak · 03-11-2005, 07:20 AM

You will end up using many coats of filler primer. I usually spray two, the block, then two more, etc until its flat. Two alternating colors make this easy to detect the differences. A light laid flat and a wet cloth will also help you find problems.

I found the easiest way to get rid of runs is to do so when still soft. The thicker paint (primer) will take a much longer time to harden. After the solvent flashes wait a bit for the flat coats to dry, then scrape off the ridge from the run. A nib file, flat file, or putty knife all work well. then once it all cures, block sand it out using the longboard.

Figure out where the leak is and fix it. I also keep a rag handy to wipe off the tip periodically. Some thicker paints and fast flashing paints will want to collect on the tip. A quick wipe keeps the fan even.

Argeo · 03-11-2005, 07:21 AM

Thanks,

So how much filler primer do I need to put on. My directions got covered in paint.

Thanks.

Tim Hancock · 03-11-2005, 07:22 AM

How many coats do the directions say?

You shouldn't have any problem sand your runs out of the primer (assuming it is a fill and sand primer). Just make sure to use a block and you will knock those runs right off.

doozer · doozer's Garage

The HouseofKolor hibuild primer I use is:

2 coats on any area where you did bodywork then 3 additional coats over everything

Argeo · 03-11-2005, 08:20 AM

I buried the instruction in paint. It is Nason Select Primer 2K. I put three coats on all ready. I guess I will sand out those drips and then sand primer a few more times.

Thanks guys,

David

kenrinc · 03-11-2005, 08:38 AM

Dave,

What is the Nason product? 421-20, 421-18 pr 421-17? 3 coats should be fine with a 5-10min flash between each coat. Sand wet with 400. If you've got waves in the panels at this point you'll never get them out shooting surfacer. You'll need to go back and fill with glaze or shoot a high build poly surfacer.

Ken-

Argeo · 03-11-2005, 08:45 AM

Sorry Ken, I don't know that at the moment. The stuff actually went on really well. All the bondo work I did from first view is like nonexistent, so no runs as far as I know. The drips are my only concern.

Now will the primers protect the car from rusting for a few weeks in a closed garage?

Oh, it was sort of fun seeing the car go from metal, to yellow to grey in an hours span. Maybe it was just the fumes.

kenrinc · 03-11-2005, 09:11 AM

Dave,

Sounds like your OK. If there runs then hit them fast after the primer cures when they are still soft that way you won't dig in on the sides, but more imporantly adjust your gun for the next time so you don't get any. If you started with variprime on the bare metal your totally fine at this point even then a typical 2k surfacer will be OK in a closed garage for a few weeks. It gives you time to check for any weirdness too like sand scratches or swelling.

Don't take chances with your health, Dave. This stuff is very, very bad stuff that you should not be breathing without a mask.

Ken-