HELP! Spraying Nitro, weird streaks?!

mrn1989

This is only my 2nd nitro spraying project and I've had no issues with sanding sealer and white primer, however today I started spraying the Shoreline Gold and the fist light coat went on fine but the coats since have weird streaks in them, I have shaken the can plenty and am spraying horizontally to the guitar. Do I have a dodgy rattle can or am I messing up?

The images below are after the 4th coat

Any help/advice appreciated

https://i.imgur.com/SJF9k3h.jpg
https://i.imgur.com/3N9zaYG.jpg

mrn1989

FYI, all the products used are from Northwest Guitars, so no mixing of brands and all the Aerosols are Nitro based

John_P

Looks like damp from moisture in the air to me.     I've had similar and it disappeared when it dried overnight so you might be ok tomorrow.    

WezV

Looks like lacquer bloom due to humidity.  Should go on the next coat, but you may need a drier day for the final ones.


Try rubbing with a clean cloth an hour or so after spraying too... Sometimes that shifts it

Funkfingers

Looks like uneven distribution of the metallic pigment within the clear medium. 

How much time did you leave between coats? From what distance are you spraying?

poopot

What @WezV said... it’s lacquer bloom... too much moisture in the air trapped under the lacquer as it falls... 

had it before, this, believe it or not was a clear coat!...

You can try gently wafting a hair dryer over it, should disappear quite quickly... you can also get rid of water marks from furniture with this method

Dont over cook it tho’

mrn1989

Funkfingers said:

Looks like uneven distribution of the metallic pigment within the clear medium. 

How much time did you leave between coats? From what distance are you spraying?

So did the 1st coat this morning, left it 30 mins and did a 2nd then did another a couple hours after, thats when i started noticing streaks, then just did a coat an hour or so ago. Spraying distance is roughly 20 -30cms

mrn1989

poopot said:

What @WezV said... it’s lacquer bloom... too much moisture in the air trapped under the lacquer as it falls... 

had it before, this, believe it or not was a clear coat!...

You can try gently wafting a hair dryer over it, should disappear quite quickly... you can also get rid of water marks from furniture with this method

Dont over cook it tho’

Just had a go but it didn't seem to do anything, does it haveto be done after a fresh coat?

hollywoodrox

Humidity definitely, when I was once spraying a bass headstock building up layers of lacquer over a decal then sanding down, each time I checked humidity levels for my area on line , I also stored it in a dry boiler room indoors

mrn1989

I did some searching and I've seen it could be due to it being sprayed to closely, they recommended spray from 2-3 feet away and it being something to do with the metallic flake laying flat cause streaks/patches, I'm assuming they spray has flakes?? Sorry I'm a total finishing noob

mrn1989

Just looked it up, currently humidity is 90% in my area 

mrn1989

So keyed the finish back and sprayed another coat the next days and all is now well, phew, thanks for the help guys!

https://i.imgur.com/N8pCh01.jpg