Well gang;
Just discovered Krylon clear spray “Indoor/Outdoor Protective, Non-
Yellowing clear Finish” over Testors brown spray was not a happy union.
And it’s not like the brown which was painted two months ago didn’t have time to cure.
Gonna have to see when Mike is ordering next so as to get some paint stripper from Chamelian, Scalecoat, or Floquil.
Grumble grumble grumble.
I’ve had enough trouble with paint and clearcoats that I’m going to start testing compatability before using.
The last disaster I had involved Krylon Clear Gloss UV Acrylic.
Ralph
Ralph Berg said:Funny you should say that, probably the same stuff I used - earlier this evening I noticed little 2mm tall powder blue letters under the logo, they say "ACRYLIC".
The last disaster I had involved Krylon Clear Gloss UV Acrylic. Ralph
But, fine print in directions on back says to clean nozzle with mineral spirits.
And all the model magazine and Tamiya catolog articles on paints I’ve read since 1983 say acrylic works fine over enamel.
Add to that experience since 1979 with model paints (Polly Scale, Pactra, Testors, Testors Acryl, Tamiya, RalPartha, Model Shipways, Games Workshop, art paints, spray fixative.
And I had no reason to suspect it would be unsafe over enamel.
I didn’t want to use Testors Glosscote Lacquer because experience has show it won’t hold up when handled with sweat and bug repellent soaked hands. Future acrylic is looking like it is going to go that way too.
And because it is lacquer.
And because this said “Indoor/outdoor protective non-yellowing protective finish”.
So much for my sense of logic.
Be interesting to redo it and try Rustoleum’s clear spray enamel.
Then get another cab and try Walmart’s cheapo spray clear enamel.
Wanna bet it will work perfectly every time? 
I had a failure similar this past spring. Was so disgusted I’ve not picked the project back up to figure out how to fix it.
Chas
I’ve heard similar stories (all recent), so I’m wondering if Krylon has changed their formula.
I use Krylon Matte Finish for almost all of my decal sealing (for G scale). It seals decals nicely and gives a light dull coat. I hope this is still compatible with most model paints. I’ve used it fine with Scalecoat, Floquil, and Polly Scale. But if there has been a formula change then I’d be worried.
I’ve not had any problems with the Krylon Matte Acrylic.
Ralph
I also suspect there is another variable. I think we tend to have less problems when we mingle paints because we have such a dry climate.
But I will say the latest Krylon cans have different labels than the ones I bought two months ago.
I’ve been wondering what to do about painting my RS-3 kitbash. I was planning to use Rustoleum “Claret Wine” as the color coat, but I need to put some kind of clear coat over the decals.
I ran a test on a piece of scrap plastic cut off the short hood. The primer and color coat went on fine. I used the “satin” finish, as I thought perhaps it would have more “tooth” for the clear coat to stick to.
After 24 hours tried Rustoleum clear coat on one section, and Krylon UV clear gloss on another section. The Rustoleum clear turned out the worst, with lots of little cracks. The Krylon UV did better. Most of it is smooth, but there are a couple small patches where it’s a little rough and cracked. These appear to be spots where the color coat went on extra thick. Perhaps letting it dry another day or two longer would help. I’ll have to try another test on something larger.
I’m not a chemist so I don’t know the particulars but Krylon among others was required to change its paint formulas in the last couple of years due to new government regulations to keep us “safe”. We’ll be using food coloring next so our paint will be safe to eat.
Keep me safe from what? I don’t plan to drink the stuff, or bathe in it. I promise to wear my mask.
When my thumb touched a spinning table saw blade, one of my attorney friends promised me tons of money if I sued the manufacturer. I had to tell him that the saw was manufactured in the 1940’s, back during the dark ages, “WHEN WE WERE EXPECTED TO KEEP OUR THUMBS OUT OF THE SPINNING BLADES OR BEAR THE CONSEQUENCES!”
He didn’t seem to understand my attitude. BTW, all I lost was a tiny bit of skin, nothing to get excited about.
The recent changes to paints, glues and other such products has nothing to do with keeping us safe. It’s to keep the polar bears “safe” and make treehuggers feel good about themselves.
But polar bears don’t have table saws… 
Steve Featherkile said:That's a shame. Lawyers like that give the profession its bad name.
one of my attorney friends promised me tons of money if I sued the manufacturer.
That’s why I like the law I work with…estate planning and taxes. Keeping the money with the client’s family and not the government and state
Steve Featherkile said:How do ya' know?
But polar bears don't have table saws... :P
Steve Featherkile said:But Steve! We must be protected! :o ;)
Keep me safe from what? I don't plan to drink the stuff, or bathe in it. I promise to wear my mask."
One of the arguments many years ago about lead based house paint was that children might chew on a window sill, etc. Why a parent would let their child chew on the woodwork is beyond me unless they just didn’t pay attention or didn’t feed them. Anyway I’d think the wood splinters would be more harmful than the tiny amount of lead ingested. They should have banned wood instead. I know I never obtained a taste for window sills or paint.
True, the dust from such paint that’s being sanded off can be harmful if inhaled but the amount the average person was exposed to was so minute as to be inconsequential and we survived. Only those who did such work for a living day in and day out could get enough to cause real harm and of course should wear some protection. The rest of us survived the paint, riding in the back of a pickup and in a car without seatbelts somehow. But then most people believed in personal responsibility and looked to their own well being. Do you realize that we actually climbed ladders without warning labels all over them explaining that falling off could be dangerous? Golly I never knew that! I somehow lack the ability to get a warm fuzzy feeling from those so much smarter than me protecting me from myself.
I know there’s likely be the “usual comments” from a few about how reckless I am but I’ll never be politically correct so don’t bother to try. hehehe!