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Spray jobs are not simple 🙁  

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mikeyrjiom
(@mikeyrjiom)
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23/05/2020 4:58 pm  

Hi Mark

I've eventually put this on the forums, completely forgot in my blind panic 🤣 

I have been gloss spraying my two Lockdown projects using ToneTech Nitro clear Gloss. I'm really pleased with the set neck project and all was great with the acoustic until I had just wet sanded back both with 600 grit.

Left this about 2-3 hours then put on two thin coats of lacquer. As you can see in the acoustic soundboard pic only one side went "weird" and I have no idea why.

Is this a "start again" moment 😥

IMG 2646
IMG 2649
IMG 2655

Cheers Mark & Stay safe


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mark bailey
(@markbailey)
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24/05/2020 12:37 pm  

Its cool Mike - I answered this one by email - I will find it later and copy paste it here - easy fix! Panic over 🙂

Measure twice, cut once...


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mikeyrjiom
(@mikeyrjiom)
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28/05/2020 8:29 pm  

Hi Mark  Thanks for the email reply. Yes panic over. After I tried sanding back and spraying it again I got the same result. When I tried again with the sand back (600 wet/dry) and respray and found the problem, ME. I was trying to put too many layers down in one go. So I just sprayed on two thin coats, didn't go for the "wet look" and hey presto no bloomimg. I've just picked up an Earlex HVLP Sprayport system so will get Bill to send over some lacquer and thinners and give that a go. Never liked spray cans but a good stop gap. Burnished (Rothko & Frost) the set neck and used some Farecla wax polish I used when spraying cars. End result not too bad for first solo build. Couldn't of done this without your courses 👍

IMG 2684


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Bill Flude
(@frocesterbill)
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28/05/2020 10:46 pm  

Looks stunning!

Measure once........
Measure again.........
Sod it - make tea!


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mikeyrjiom
(@mikeyrjiom)
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29/05/2020 1:10 pm  

Thanks Bill. I'm leaving the acoustic for a little longer before I buff / polish that.

May even do a few more coats of lacquer with the HVLP once I've got the lacquer and thinners from Tonetech.


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Bill Flude
(@frocesterbill)
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29/05/2020 1:41 pm  

What model of the Earlex HVLP did you go for Mike?

Measure once........
Measure again.........
Sod it - make tea!


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mark bailey
(@markbailey)
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Posts: 455
29/05/2020 5:04 pm  
 
Glad to Help!!
 
Posted by: @mikeyrjiom

Hi Mark

I've eventually put this on the forums, completely forgot in my blind panic 🤣 

I have been gloss spraying my two Lockdown projects using ToneTech Nitro clear Gloss. I'm really pleased with the set neck project and all was great with the acoustic until I had just wet sanded back both with 600 grit.

Left this about 2-3 hours then put on two thin coats of lacquer. As you can see in the acoustic soundboard pic only one side went "weird" and I have no idea why.

Is this a "start again" moment 😥

IMG 2646
IMG 2649
IMG 2655

Cheers Mark & Stay safe

Here is the fix I mentioned before...taken from email:
 
Hey Mike - it looks like 'blooming' - the finish has 'bloomed'
 
it has gone milky due to moisture trapped in the finish
caused by spraying when tooo much moisture in the air
 
easy to fix:
 
just wait until when conditions are ideal then spray another coat  (on a nice sunny day)
 
that should  do it 🙂

Measure twice, cut once...


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mark bailey
(@markbailey)
Guitar Making God
Joined:2 years ago
Posts: 455
29/05/2020 5:08 pm  
Posted by: @mikeyrjiom

Hi Mark  Thanks for the email reply. Yes panic over. After I tried sanding back and spraying it again I got the same result. When I tried again with the sand back (600 wet/dry) and respray and found the problem, ME. I was trying to put too many layers down in one go. So I just sprayed on two thin coats, didn't go for the "wet look" and hey presto no bloomimg. I've just picked up an Earlex HVLP Sprayport system so will get Bill to send over some lacquer and thinners and give that a go. Never liked spray cans but a good stop gap. Burnished (Rothko & Frost) the set neck and used some Farecla wax polish I used when spraying cars. End result not too bad for first solo build. Couldn't of done this without your courses 👍

IMG 2684

Yes - The 'Blooming I mentioned earlier is made worse if the coats are thicker - more thinner coats are always better than a few thick ones...THANKS for sharing your adventure with the rest of us!!

 

Measure twice, cut once...


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mikeyrjiom
(@mikeyrjiom)
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29/05/2020 7:30 pm  

@frocesterbill Hi Bill. I found this one on eBay it's a 6002 sprayport actually brand new with a gravity feed pro 8 spraygun. 6003 is the latest one but only available in the USA and a lot more ££'s than I got this for. Not sure I need 3 turbines 2 should suffice.  


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