iwata airbrush spitting

[eatthis]

im stuck iv just fitted a new nozzle and needle but it still spits blobs of paint out and wont flow much at all at my normal pressure (15-20 psi).

its not the paint causing it and theres no moisture in it

[The Wooksta!]

Paint mixture?  Perhaps it's not thin enough?

[eatthis]

Paint mixture?  Perhaps it's not thin enough?

nope paint is the same as it always has been i even overthinned a paint and it does the same

[van883]

If the compressor is working normally and if it isn't a paint viscosity issue , where there are new and unworn parts, then there must be a partial blockage somewhere. Strip it down to component parts and clean it properly. Airbrushes aren't that complex. Be meticulous.

Van

[Rheged]

Strip it down to component parts and clean it properly.  Be meticulous.
Van

This is good advice with just about ANY piece of equipment.If there are no bits left over when you reassemble it, you should find an improvement.

[eatthis]

If the compressor is working normally and if it isn't a paint viscosity issue , where there are new and unworn parts, then there must be a partial blockage somewhere. Strip it down to component parts and clean it properly. Airbrushes aren't that complex. Be meticulous.

Van

done that 3 times now and it seems to be behaving itself better for now

[matrixone]

Closely inspect the needle tip and spray nozzle, just because they are new does not mean they are perfect.
Years ago I bought a brand new Badger 100G and the damned thing had the very tip of the needle bent and I had to get a replacement before I could use.

One thing that could help is getting some prepared beeswax and smearing a little on the threads of the nozzle and the cap, having a good seal will not repair damged parts or unclog a dirty airbrush but will make your airbrush spray a little better.

I think Van is right, take your airbrush apart and clean it again. You would be surprised at how even the smallest bit of dried paint can cause troubles in your airbrush.

Matrixone

[eatthis]

Closely inspect the needle tip and spray nozzle, just because they are new does not mean they are perfect.
Years ago I bought a brand new Badger 100G and the damned thing had the very tip of the needle bent and I had to get a replacement before I could use.

One thing that could help is getting some prepared beeswax and smearing a little on the threads of the nozzle and the cap, having a good seal will not repair damged parts or unclog a dirty airbrush but will make your airbrush spray a little better.

I think Van is right, take your airbrush apart and clean it again. You would be surprised at how even the smallest bit of dried paint can cause troubles in your airbrush.

Matrixone

ptfe tape do the same thing?

[matrixone]

Yes the tape would do the same thing but considering how small the threads are its not very practical.

Below is my Iwata Revolution BR and it is partly stripped down like I would do if it was being cleaned, notice the small piece of paper towel with one end twisted to a point, I dip the paper towel in clean thinner and use that to clean the inside of the spray nozzle...you should do this every so often to keep paint from building up in the spray nozzle, just spraying clean thinner through an airbrush will not always clean it enough.
The other thing in my pic is the container of prepared beeswax and a toothpick, I use the end of the toothpick to apply the beeswax to the threads and then with my fingers I smush into the threads...it won't take much of the beeswax.

I bought my prepared beeswax from Dixie Arts here in the states, it does not cost very much and worth its weight in gold. Another good thing to have on hand is the Iwata SuperLube, I smear a little bit on the needle before I insert the needle back into the body of the airbrush and it helps keep the trigger movement smooth.

Matrixone

[van883]

http://www.youtube.com/watch?v=mA2aDzQaETM
I hope this helps

Van

[eatthis]

i got it working in the end by restripping it 4 times lol

every time i use it i clean it by removing the needle cleaning that, put cleaner in the pot and spray some through it then use tissue to clean the pot.
i also use a cotton bud dipped in cleaner on the nozzle then i check it all reassembled

[van883]

i got it working in the end by restripping it 4 times lol

every time i use it i clean it by removing the needle cleaning that, put cleaner in the pot and spray some through it then use tissue to clean the pot.
i also use a cotton bud dipped in cleaner on the nozzle then i check it all reassembled

That is more or less what I do every time...