lcorinth
Well-Known Member
- Joined
- Aug 5, 2014
- Messages
- 1,024
- Reaction score
- 49
Sometimes I get this weird thing happening with my paint. I used to call it "moon pocks," because it looked like a pock mark or lunar crater, but I've since learned it's called fisheye.
It's where you spray paint and there's a spot - usually a round spot - where the paint does not cling to the rocket. The result looks something like this:
Now, this picture, and the next one, are not mine. I found them via Google search. The reason I don't have my own is that each time this has happened, I've gotten really angry, and sprayed the rocket until I got the darned thing covered, then went back and sanded down the lumps and repainted.
Last week, I got a particularly bad case of fisheye, which looked a bit like this (again, not my photo):
Very frustrating.
Now, I sand carefully and try to get the rocket as clean as I can before painting. The thing I'm wondering is if this has to do with the method I'm using to clean dust off the rocket before painting.
Immediately after sanding, I rub the rocket down with a little rubbing alcohol on a clean cloth. Sometimes I don't paint right away, though, and dust may have settled on the rocket, or there may be lint left behind by the cloth I use to wipe it down with alcohol, so just before painting I gently wipe down the rocket with a tack cloth.
Now, I've heard a tack cloth can leave a residue on the surface, so I try to go very lightly with it, as I've read you're supposed to do. But I'm wondering if it's the tack cloth that's doing this.
I've only had this occur a few times, and only when using Krylon gloss enamel. I don't think it's occurred when I've used Rusto. Thing is, when the Krylon goes on well, I really like it. And I've had about the same success rate with Krylon and Rusto (due to an occasionally chunky can of Rusto).
But, in fact, my best paint job was with two colors of Krylon.
My close second best was with Rusto.
I only mention this because I know some folks aren't crazy about your basic gloss Krylon these days - apart from their one line of paint which is apparently more like the older formula (but which I haven't found around here).
My paint jobs are getting more consistently better, and I think this means my surface prep is generally pretty good, and my spray technique is getting better. But whenever I have something like this happen, it's so frustrating.
If it weren't for the fisheye problem, then I'd only have one Krylon paint job I wasn't happy with, due to a bad nozzle or a pigment clog or something.
I've read that fisheye is caused by oils, grease or wax on the substrate, which is what makes me suspect the tack cloth. Does this seem likely to anybody?
I'm wondering if some paints (i.e. the Krylon) are more sensitive to residues left on the rocket by the tack cloth than others (like Rusto). Should I be more careful with the tack cloth, or ditch it altogether? And if using a tack cloth turns out to be a less than ideal way to get dust off a rocket before painting, what would you guys suggest as a safe, clean way of doing it?
Thanks for your input, guys!
It's where you spray paint and there's a spot - usually a round spot - where the paint does not cling to the rocket. The result looks something like this:
Now, this picture, and the next one, are not mine. I found them via Google search. The reason I don't have my own is that each time this has happened, I've gotten really angry, and sprayed the rocket until I got the darned thing covered, then went back and sanded down the lumps and repainted.
Last week, I got a particularly bad case of fisheye, which looked a bit like this (again, not my photo):
Very frustrating.
Now, I sand carefully and try to get the rocket as clean as I can before painting. The thing I'm wondering is if this has to do with the method I'm using to clean dust off the rocket before painting.
Immediately after sanding, I rub the rocket down with a little rubbing alcohol on a clean cloth. Sometimes I don't paint right away, though, and dust may have settled on the rocket, or there may be lint left behind by the cloth I use to wipe it down with alcohol, so just before painting I gently wipe down the rocket with a tack cloth.
Now, I've heard a tack cloth can leave a residue on the surface, so I try to go very lightly with it, as I've read you're supposed to do. But I'm wondering if it's the tack cloth that's doing this.
I've only had this occur a few times, and only when using Krylon gloss enamel. I don't think it's occurred when I've used Rusto. Thing is, when the Krylon goes on well, I really like it. And I've had about the same success rate with Krylon and Rusto (due to an occasionally chunky can of Rusto).
But, in fact, my best paint job was with two colors of Krylon.
My close second best was with Rusto.
I only mention this because I know some folks aren't crazy about your basic gloss Krylon these days - apart from their one line of paint which is apparently more like the older formula (but which I haven't found around here).
My paint jobs are getting more consistently better, and I think this means my surface prep is generally pretty good, and my spray technique is getting better. But whenever I have something like this happen, it's so frustrating.
If it weren't for the fisheye problem, then I'd only have one Krylon paint job I wasn't happy with, due to a bad nozzle or a pigment clog or something.
I've read that fisheye is caused by oils, grease or wax on the substrate, which is what makes me suspect the tack cloth. Does this seem likely to anybody?
I'm wondering if some paints (i.e. the Krylon) are more sensitive to residues left on the rocket by the tack cloth than others (like Rusto). Should I be more careful with the tack cloth, or ditch it altogether? And if using a tack cloth turns out to be a less than ideal way to get dust off a rocket before painting, what would you guys suggest as a safe, clean way of doing it?
Thanks for your input, guys!