Airbrush chewing Gum

[Guest]

Hi Laurie, it's just that I knew there had to be something there for the brush to work. I looked up the part numbers for ease of reference. There are so many little bits and pieces it's easy to get them confused, particularly when typing descriptions over t'internet!
Cheers


Steve

Yes that was a bit learnt yesterday Steve. Think it was probably not having any trouble


in that direction with the H & S that that led me up the wrong path.


I may well have damaged the Iwata packing with aggressive cleaning.


Laurie

[Guest]

The myth.
Is it a fact Steve that if you used cellulose to clean your airbrush that certain inferior rings


(Chinese) would , if not destroy the rings, make them all sticky and then unreliable


when they had "cured". Probably overtime.


Laurie

A year ago I had very severe, persistent blocking of my Harder and Steenbeck CR Plus (0.4 nozzle) when using Vallejo acrylic paint. It happened after I had used it to spray Tamiya Synthetic Lacquer, which has Cellulose thinners as its solvent and cleaner. After cleaning it very well I put it away for a few months, and when used for Acrylic it constantly blocked. Even a reamer had no effect. I hade to buy a new nozzle and its cover thing.


I used the lacquer on my 1/16 RollsRoyce because of the brilliant gloss coat it gives, mostly straight from the spray can. But I used the AB on deeply indented areas such as between the bonnet and the wings which tended to flood with the fierceness of the spray. It airbrushed OK but I will never use lacquer again in an AB. I didn't notice any seal problem.

[Steve Brodie]

Dont mix and match paints / cleaners - as you guys already pointed out

[Guest]

Dont mix and match paints / cleaners - as you guys already pointed out

In my case, I had habitually used Vallejo Model Air and then Vallejo Airbrush Cleaner to clean the AB (0.4 mm needle) many times, successfully. Then, faced with a model with deep incurves where using a spray can would have flooded nearby areas, I used my AB to spray some Tamiya Lacquer (by spraying some from the spraycan into the AB cup.) I then immediately thoroughly cleaned the AB with Cellulose Thinners (the solvent in the lacquer) from a tin bought in a DIY shop and put the AB away. A couple of months later I used the AB to spray Vallejo Model Air and that was when I got persistent blocking for several later airbrushing sessions. As usual, I thoroughly cleaned the AB with Vallejo AB cleaner after each Vallejo Model Air spraying session. I still got blockages. I reamed the nozzle. No help. I bought a new nozzle and needle and for the couple of AB sessions since I have had no problems.


I conclude that the lacquer possibly coated the inside of my AB passages which the Cellulose Thinners did not fully remove. This coating and/or any Cellulose Thinners remaining in the AB possibly reacted with the Vallejo Model Air. Whatever it was, I will never spray Lacquer again from an AB. An experiment too far.