clear coat run

[Kingofpain678]

i tried googling this but only cars came up... not sure if it really matters but i just wanna be sure.

i sanded my guitar down and repainted it.... it was looking great but as i was spraying the clear coat on i got some runs.

how exactly do i take care of this????

 

[Minion]

I would say try sanding it down with some 220 grit till it is smooth then put another thin coat of clear coat on , of cource without the runs ...


Cheers

 

[Kingofpain678]

lol thanks, ill give it a try. im gonna use 320 grit cause im scared im gonna mess it up

 

[Slowjett]

Buffer!!!!!!

 

[dintymoore]

Sometimes using a sanding block will help you only hit the tops of the runs. 3M brand sandpaper seems to be in a different league than others and I prefer it.

An old timer showed me a long time ago to always fold the sandpaper so it's 3 pieces thick if you know what I mean, not just doubled over.

This (although dismal video quality) is about the best advice I've found on getting a great finish:
https://www.youtube.com/watch?v=z9WiPxsMpXU

 

[cantthinkofname]

my dad used to be a bodyman (for cars), maybe i could call him up this weekend and ask for ya (how to avoid 'fish eyes' & runs etc). Although he used one of those major spray guns etc.. the basic principles are probably the same? I don't know, i'll try to call

 

[Kingofpain678]

wow man, days later and people are still trying to help

this site is great. thanks for the recommendations guys

i sanded the run with the 3m 320 grit sandpaper and layed another clear coat down and it looks great!

again, thank you guys!!!

 

[rmaier]

Wet-sanding can work really well ,too.

 

[muttley600]

Just seen this as I don't drop by this board very often.

Just for the record it's important to get any runs and sagging out of the finish before you put your top coats on. Depending on what you are shooting the best way is to cut them back and it doesn't really matter how hard you go as long as you don't go through the colour coat or run through to the wood. Your top coats need to be layered up evenly as you are going to have to cut back to a dead flat surface from 400 grit right down to at least 1000 grit before you buff out. If your using nitro subsequent coats will drop into the previous layer so you can build quite a good coat to cut back. If your using acrylics or polyurethanes then you need to get a good even coat because any run through from one layer to the next is going to show and are known as witness lines.