Question

Joined
Apr 27, 2018
Messages
461
Likes
258
Points
63
First Name
Paul
#1
Hi all,
I have a question for you more experienced people. What would cause the air brush to stop spraying mid flow, but on releasing the trigger it sprays a small amount.
Any pointers would be very welcome.
Scottie
 
Joined
Dec 24, 2017
Messages
254
Likes
134
Points
43
Location
Staffs.
First Name
Steve
#2
If the needle chuck nut is tight and not slipping chances are partial nozzle blockages crud or bits of skin etc, not much else i can think of.

Steve.
 
Joined
Apr 27, 2018
Messages
881
Likes
426
Points
63
Location
Salisbury
First Name
Tim
#6
Hi guys, are we sure this isn’t tip drying, with the dried paint block being circumvented when the needle closes and moves the tip forwards? Happens to me every time I use acrylics through an airbrush....what paint are you using Scottie?
Cheers
Tim
 

John Race

Plastic burner and member of the Rabble
Joined
May 26, 2015
Messages
1,053
Likes
622
Points
113
Location
lincs
First Name
John
#8
Hi Tim,
I use Vallejo acrylics most of the time. when I mix it is either to thick or comes out in large dropplets
Paul.
I had the same problem , got some Vallejo retarder from John at the shop.
I just add a couple of drops into the paint as per the instructions, mix and pour into the paint pot on the ab. Seems to have worked , even in this heat. Before I would have to clean the needle and the head. It would always be as Tim has said, a lump of crud would appear when I pushed the point of tool through the nozzle.
John.
 
Joined
Apr 27, 2018
Messages
881
Likes
426
Points
63
Location
Salisbury
First Name
Tim
#11
Make that three...Tamiya with Mr Colour levelling thinners, match made in heaven, sprays like silk....I’ve tried several brands of acrylic and had the same issue with all of them...need a good mask though.
Cheers
Tim
 
Joined
Apr 27, 2018
Messages
812
Likes
633
Points
93
First Name
Jim
#12
Hi Scottie
Another possibility is that the needle is slightly bent near the tip. Take out the needle and roll it on a flat surface and watch the tip. You will easily notice if the point is bent.
Jim
 
Top