Gun pressure and TDS

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  • September 16, 2013 at 1:02 am #44494

    Hi..
    Just wondering.. lets say my gun needs 29psi (2bar).. But the clear coat I am spraying the TDC says 3-4 bar..

    Do I go with the gun pressure 29psi.. or.. I go with the TDC 3-4 bar??

    It is a bit of a conundrum for me at the time 🙂

    September 16, 2013 at 1:39 am #44495

    Go with the gun manufacturers recommended air pressure.

    September 16, 2013 at 6:32 am #44499

    Like Smo

    September 16, 2013 at 6:37 am #44500

    Like Smooth said, figure out what your gun manufacturer recommends then fine tune it from there.

    Some paint and some gun manufacturers have info for specific paint products and specific guns. This is not in the tech sheet. These give you very accurate info and can really help you match the best guns and settings for a product.

    But at the end of the day, it is up to the painter to make it work for him. There are no perfect guns/settings for everyone in all scenarios.

    September 16, 2013 at 11:01 am #44501

    I have Iwata AZ3 HTE2 1.3
    Yesterday it layed the LS7N Silver Artctic on my Seat perfectly..
    When I cleared the base I got a bit of dry spray.. but no big deal..

    The TDC says 43-58psi in 1.3/1.4 for the clear.. so I went with 40psi.. and got over spray like hell and dry spots..
    I will sand and re-clear the whole side again..

    September 16, 2013 at 2:55 pm #44503

    Way too high for that gun I reckon.

    As you say, the sheet says 2 BAR which is ~29 PSI. Start with that and bump up or down a few pounds to taste.

    September 16, 2013 at 4:35 pm #44505

    The gun is not made to spray at that pressure. What clear are you using

    September 16, 2013 at 4:57 pm #44506

    Cheap clear.. Colomix MS 2:1 + 10% reducer..
    TDC says: nozzle 1.3 – 1.5 mm, the pressure of 3 – 4 bar.
    You can’t find it on the net..
    Although cheap it buffs to a great gloss and is easy to work with..
    I use it on helmets, headlights etc..

    I usually spray with MobiHel [ http://www.mobihel-helios.com/eng/products ] and Standox..

    September 18, 2013 at 1:16 pm #44522

    Yep that is the one..
    But on the packaging says 3-4 bar.. so I was confused..

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