How To Prevent Fish Eyes In Clear Coat
fish eyes in clear
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| Settled In Posts: 19 | Been getting them on my flat surfaces for about a yr now. I always just sand them out but it's getting pretty old. Everything has been replaced, Sharpe air control unit as well. Don't seem to get them in any coat besides my 1st. Like I lay it down to heavy or something. I feel I have 2 options now |
Posted: Thu Jan 12, 2017 7:52 pm
Board Moderator Posts: 8776 | Are you only getting them in the clear coat? 1968 Coronet R/T ACTS 16:31 |
'68 Coronet R/T's Profile
Top Contributor Posts: 5709 | Yes give us a rundown from start to finish, good pictures will help. fish eye problems can be hard to diagnose. how clean is your spray area, contaminated dust could be one cause. could also be solvent pop, spraying a heavy coat with fast reducer or catalyst. although I have never had that problem and I'm a hosier. I wouldn't think your PPG would be the problem, as anything with PPG on it is probably going to be hi quality. they say my name is Jay |
| Settled In Posts: 19 | Primer sanded with 600 and dawn soapy water. |
Board Moderator Posts: 8776 | Are you using a tack cloth before applying clear coat? The other thing might be how you clean your spray gun. Could be some left over contaminant the comes out on your first round of clear. 1968 Coronet R/T ACTS 16:31 |
Top Contributor Posts: 5709 | You indicate that the base goes on with no fish eye. so we are probably looking at some contamination on the base coat or in the clear system ( air ,dirty gun , mixing process ,or ) is the fish eye on horizontal surfaces or vertical, and are they just a few here and there. as said before I don't think its a product problem and a dry tack coat is not going to solve the problem only create others. when you get some fish eyes there's nothing you can do about it other than fish eye eliminator. you ether stop and try and fix the problem or keep going as you do. one thing I have done if I get a f-I or two is to let the clear dry to touch then use a tooth pick and dab a drop of clear in the fish eye. it will usually cover easily, don't leave the drop as it will take weeks for it to dry you'll want to lightly squeegee it off flush with the sprayed on clear. they say my name is Jay |
| Settled In Posts: 19 | No issues with base. Clear is mixed properly and cleaning of guns is done very well. I use different guns for base and clear. Both guns have same results. Mostly on tops of roofs and anything laying horizontal. May get 30 on a big full size roof. The dabbing clear trick works but that's to many to be doing that to. I do a lot of tail light tinting and never get these spots. I put a hair of black base that's not reduced into my clear. Mist the 1st coat and then hose on enough coats to get the tint I want. So that's why I thought doing a talk coat on car horizontal panels would help |
Top Contributor Posts: 5709 | Just a guess but i'm thinking you getting contaminated dust from the floor or somewhere in your paint room settling on the roof. do you wet your floor down? you might also try tack raging the top panel before the clear but make sure it flashed of good. mist coating the tail lights will probably work as the mist coat doesn't have time to flash a lot or dry up. on the roof panel it may flash enough that it won't flow out smooth. its still not going to prevent the fish eyes their going to pop there ugly head up as soon as you apply the wet coat they don't just cover up. they say my name is Jay |
| Top Contributor Posts: 5350 | Pictures please Weird how Primer and Base coats are good and just in clear coat. Are you using any sort of Wax and Grease remover type final wipe before Clear coat???? Also exactly How much Flash time are you giving your panels between coats? Also What kind of Mixing cups are you using for the Clear? the same as the Base? Are you trying to clean these cups for reuse? Dennis Barnett |
| Fully Engaged Posts: 392 | The "drop with a toothpick" deal works very well if you do it between the first and second coat of clear. If you are lucky it will totally disappear when the third coat goes on. Worst case there will be a little high spot that will need to be cut down like a run. |
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How To Prevent Fish Eyes In Clear Coat
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