Painting ISSUES!!

[ray schrauwen]

I bought a couple cans to test with and Itell you I love it. Try a can, it's not very expensive.

I took a boat that a buddy gave me. Don't know what type of paint he used and his pain job had some krinkle in it.

This stuff painted right over it and it's tough! I tried putting hatch tape on it for a few days an no problem.

I'm going to try it in the sun next.

The thing is you can buy different caps for different spay pattern.

In the video he uses a finer spray cap compared to what you get stock. The stock cap is a lower pressure mist that lays paint down very evenly. I'm going to try some fades etc.

I have to order clear coats as the store nearby doesn't stock it.

Their chrome is quite impressive considering the price & finish.

[ezhitz]

I just painted my boat on the weekend using Krylon and my gloss black ended up looking more like flat black I assumed it was humidity problems so i will wait until the end of summer to repaint it.

[monojeff]

Well I painted the cowl again today after sanding it down and it came out fine.
I guess I'll take a look at the weather report before finishing the rest of the hull.

So if it's humidity then why does it only happen to part of the paintjob?
Is there a certain limit they say to keep within to stop it from happening?

[Basstronics]

I had the same issues.

Went to Testors spray and no more issues at all.

[NativePaul]

I don't care how good it is I'm not giving my money to and supporting a company that aims their product at graffiti vandals, lets try to keep the streets clean.

I build over winter then paint in the spring when things are warmer and dryer.

If your having problems with painting I hear there is a guy on here that makes vinyl wraps, "put a wrap on it"

[bardahlracing]

Jeff, the Krylon hates polyesters, did you have any fillers "bondo" on it?) Krylon has caused me enough extra work as well that i won`t use it on anything anymore, good luck, BTW I got your parts all made for your scale boat.

[tiqueman]

Well I painted the cowl again today after sanding it down and it came out fine.
I guess I'll take a look at the weather report before finishing the rest of the hull.

So if it's humidity then why does it only happen to part of the paintjob?
Is there a certain limit they say to keep within to stop it from happening?

Dont know why it spots and no, they didnt give much info, other than it was a humidity issue. To test thier claim, I did bring everything inside and let it sit in the house a couple days. I then built a little spray booth box in my hobby room and shot a small area and it came out decent. No aligatoring or pulling away, but it still wanted to haze a bit. The clear was even more of a nightmare. Try after try it kept hazing. It would lay down nice and look great at first, then 5 minutes later it was foggy. I recently was looking at the hull I used the Krylon on and wondered "what if?" . I ended up taking some U-Pol clear and shooting the hatch. Looks like a totally different part. Deep beautiful shine and layed down perfect. Eventually I plan on scuffing the entire boat and re-clearing it w/ the U-Pol product. Its not going to fix the defects in the Krlon colors below, but it sure make it easier to overlook them.

[rc2266]

I don't care how good it is I'm not giving my money to and supporting a company that aims their product at graffiti vandals, lets try to keep the streets clean.

I build over winter then paint in the spring when things are warmer and dryer.

If your having problems with painting I hear there is a guy on here that makes vinyl wraps, "put a wrap on it"

[wparsons]

Well I painted the cowl again today after sanding it down and it came out fine.
I guess I'll take a look at the weather report before finishing the rest of the hull.

So if it's humidity then why does it only happen to part of the paintjob?
Is there a certain limit they say to keep within to stop it from happening?

It should say on the can what humidity to stay under when spraying, but most paints are fine under 60%, although some want under 50%.

[liteumup69]

It was 90 today here in NY, TON of humidty, our spray booth is climate controled, I did a truck bed, wiped down then shot it with primer, I had 4 spots that crinkled, either it wasn't completly clean, too heavy of a coat, or........... Like my buddy says "theres always another step" it happens from time to time, even my paint rep dosent have an answer

[egneg]

Humidity is relative - the higher the temp the more moisture the air can hold. 60% at 40 degrees is totally different than 60% at 90 degrees. You must go by the dew point at any given temp. That is why you can spray in the winter at higher humidity than you can in the summer at a lower humidity. As the solvents evaporate they lower the temp of the object you just painted ... if this temp falls below the current dew point you will have problems.

[monojeff]

So is there a dew point % to stay under??

[bigwaveohs]

If you try Molotow Premium this will not happen. Paints onto anything, even when wet, doesn't run unless you are a complete idiot and leaves no dust finish. This stuff is wacky!

http://artprimo.com/catalog/art_prim...mium_info_page

And it's the paint of choice for graffiti artists...guess because it works on wet, rained on surfaces...check out the videos on their site!

Here's a nice color "Clash Black Don't Give a F*ck"...complete with chain link fence and bolt cutters on the can label!

[egneg]

So is there a dew point % to stay under??

That is hard to say as it's not a percentage but the actual dew point - it depends on the paint/solvent ratio. Spray paints that advertize quick dry are going to have a higher solvent ratio so will be more of a problem. Most automotive paint systems use reducers that are geared to a certain temp range (fast, medium, slow) to deal with this as the temp rises.

[detox]

Extremly High humidity will cause dark colors to be off color. Black will appear dark milky gray. I forget what the pros call this problem.

The real test is when you remove the hatch tape. Does the paint peel off with the tape. Krylon primer and paint works good in this department (no peeling). IF you follow the directions on the can.