runs from hell

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Envious Interiors

Guest
hey, i dont have any idea why, but i just sprayed a sealer on a truck, a light tack coat, then allowed it to get tacky, then sprayed a medium wet coat over it. it ran almost everywhere on the truck, even the hood. any ideas why? ive never had this may runs, a couple here and there with sealer, but not all over like it is. now i have to stay up all night and wetsand that bastard until its ready for paint. then i will spray it first thing in the morning. ohh. after the tack coat, i refilled my cup of paint, and it started to splatter on me, really bad. i sprayed on some paper, and it looked like a texture gun. so i added some more reducer in there and it came out better, but still ran really bad.
 
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Envious Interiors

Guest
it was stirred each time right before i put it into my cup. and hardener and accelerator were mixed.
 
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shaunboy

Guest
G'day mate
bigokay.gif

Was it possibly a spraygun fault like blockage or something and then u just overreduced the sealer an got the runs?
 
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Austin

New member
Mine was an obvious question as well, but thats always the best place to start. What temp were you spraying at? What kind of sealer were you using?
Austin
 
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rex

New member
Shaunboy's got the answer most likely.I'm thinking the atomization holes (the small ones in the center) in your aircap were plugged and the extra reducer kept it wet too long.If you're using PPG forget the tack coat thing,that's something HOK and the older paint lines did and can cause adhesion problems if the paintline doesn't specifically say to do it.
 
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Envious Interiors

Guest
lets see, i was using a martin senior brand sealer, it was about 65-70 degrees, had heat lamps on, stirred well, mixed in an accelerator, i dissasembled my gun right before i mixed the sealer, and had to over reduce it a little bit. maybe i had too much fluid running out of the gun. next time im going to turn it back a touch. also, when i was spraying on the hood, it only left sealer at the bottom half of the spray pattern? whats up with that?
 
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Austin

New member
A dirty gun, most likly the cap. With a one sided patern you can have a run right under a dry line. I like to turn my cap sideways then spray heavy onto paper before painting if I suspect a dirty cap. When the product your spraying starts to run alittle on the paper, you can see if it runs more on one side than the other. (I'm talking just point the gun at the paper at the distance you spray, but dont move the gun)
Spray onto paper like this ______
insted of verticle.
Hope this makes sense
Austin
 
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