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- Deep Clean Your Siphon Feed Airbrush – Screw in Nozzle
Deep Clean Your Siphon Feed Airbrush – Screw in Nozzle
This particular guide applies to these airbrush models.
Iwata
| HP-BC1 | HP-BC+ | HP-BCR |
| HP-BC2 |
Instructions
Equipment
- Towel or tray to work over
- Appropriate cleaning solution
- Round wooden toothpicks
Bamboo toothpicks don’t seem to break as often
- Bristled cleaning brush of some type…
Interdental brushes, or airbrush cleaning brushes (you’ll need the small ones), or pipe cleaners (not recommended)
- The wrench that came with the airbrush
- Cotton swabs for general cleaning
Note: Cotton swabs do occasionally shed their fibers, if it does just make sure you pick them out
- Mirror or mirror-like surface
Old AOL CDs are my favorite “mirror-like surface” but if you’re cleaning with a solvent CDs won’t last long. In that case use part of a glass mirror.
- (Optional) magnifying glass or jeweler’s loupe
Disassembly
- Unscrew the handle
- Unscrew the needle chucking nut
- Pull out the needle
- Clean the needle with a cotton swab
Warning: Needles are still sharp.
- Unscrew the needle cap
- Unscrew the nozzle cap
- Unscrew the nozzle counter-clockwise with the wrench
Caution: Nozzles are delicate, they break easily
Cleaning
- Examine the nozzle for damage
- Look at the small tip
- Make sure it’s a true, perfect circle free of dings, dents, tears, and cracks
- Look at the nozzle from the side
- Make sure the tip does not flare out like a trumpet
- If the nozzle does not pass inspection replace it
- Clean the nozzle with a toothpick
This is the important piece, make extra special certain it’s clean. - Clean the paint passage with the cleaning brush
That’s everything between the color stem…
To the stem the nozzle screws into - Clean the color stem with the cleaning brush or a cotton swab
- Clean any bottles
- Glass jars can be soaked and scrubbed or just scrubbed. Your choice.
- Plastic bottles shouldn’t be soaked. Scrub them instead.
Solvent resistant bottles are just that, resistant. They wil eventually melt from contact with solvent based paints, but melting can be months to years in the process. - Bottle tops (cap sets)
Scrub with brushes. Use extra long pipe cleaning brushes or pipe cleaners to get into the long paint tube. If you decide to go with pipe cleaners get the expensive ones–they don’t shed their fibers as much.
NOTE: Clean everything very thoroughly! I know you’re getting tired of me saying it. But I harp on it because it really IS that important!
Reassembly
- Screw the nozzle into the airbrush body.
- Hold the nozzle in your fingers
- Twist the airbrush body onto it.
- Twist until finger tight.
- Tighten the nozzle with the wrench gently, no more than an eighth of a turn.
CAUTION: This is the most likely time to damage the nozzle. Be careful.
- Screw the nozzle cap onto the airbrush body
- Screw the needle cap onto the nozzle cap
- Gently insert the needle. It should come to a firm stop with the needle tip poking out of the front.
Do not force it in. - Twist the needle counter-clockwise a quarter turn
- Screw the needle chucking nut, big end first, onto the needle chucking guide
- Screw the handle onto the back of the airbrush body
Testing
- Fill a bottle with water
- Hold the airbrush up to a mirror and press down for air only
- No spray should come out.
- Hold the airbrush away from the mirror.
- While holding the trigger down for air pull it all the way back.
- You should get lots of continuous spray
- Hold the airbrush back up to the mirror and re-confirm no spray
- Now pull the trigger back slightly
- You should get a round spray pattern.