Merlin Posted November 2, 2019 Share Posted November 2, 2019 (edited) Hi, Easy reference quick start guide to thinning and spraying varnishes. Prompted by the fact that I am about to spray Humbrol satin cote with no idea what ratio, thinners, psi etc etc will work., and with failure of Alclad ll to go satin this time compared to last time... I wish to create a thread, that may become pinned if useful, where modellers can list what thinners and thinner ratio, psi, nozzle, distance they find did a nice job, so saving hours spent experimenting, especially if armed with a variety of varnishes and thinners, it will become days, and when trying to get something built for a deadline we want to reach for something that others find works for them, as a start point at least. Instant help and be up and running, time spent spraying one's model not figuring out what went wrong. Please populate the list with the details headed. I have added temp and humidity as these seem to play a major role on frosting or finish achieved. If you wish to say how many passes single or double and if 'wet' feel free. Varnish(make and title) thinner Make ratio of thinners as % added psi (when air flowing) distance temperature humidity Merlin Edited November 2, 2019 by Merlin spelling mistake Link to comment Share on other sites More sharing options...
Baran İşmen Posted November 7, 2019 Share Posted November 7, 2019 Varnish(make and title) thinner ratio of thinners as % added psi (when air flowing) distance temperature humidity Future None %100 Future Around 15, 20 Max. 10-15cm 24 Celcius n/a Humbrol Clear None %100 H.Clear Around 15, 20 Max. 10-15cm 24 Celcius n/a Vallejo Gloss Varnish Water or %60 Varnish, %40 Thinner Around 15, 20 Max. 15-20cm 24 Celcius n/a own thinner Will write the results of Mr.Color's Clear as well when i try it. Link to comment Share on other sites More sharing options...
Mark Harmsworth Posted November 9, 2019 Share Posted November 9, 2019 Why not brush paint Future? Link to comment Share on other sites More sharing options...
bhouse Posted November 9, 2019 Share Posted November 9, 2019 To be honest, I think the biggest variable is the experience and skill of the painter - and that's not something that can be expressed as a simple numerical value. Link to comment Share on other sites More sharing options...
G.E.SAUNDERS Posted November 10, 2019 Share Posted November 10, 2019 hi ALL , I have be havin' problems with spraying KLEER on my Ink Jet Self Printed Transfers, too much..... the Ink runs, too little the Transfer curls up on applicatshun. When sprayed on, it comes out rippley ( suspect thats the drops of added H2o ),,,,,,,,, yesterday I discovered that the dried Polish can be buffed to make the Surface smooth before application...... wwweeelll..... IT IS a Floor Polish ! Does KLEER/FUTURE go off ? I have applied warm KLEER to Models with a broad brush....... but don't muck about with the appliciatshun, single strokes only. cheery "modellin' " mumbas ! Geoff F.T.G. 3156 Link to comment Share on other sites More sharing options...
dnl42 Posted November 10, 2019 Share Posted November 10, 2019 I don't rely on ratios, I rely on thickness, like 1% milk or a little thinner. For Mr Color Gloss (C46), I thin with Mr Leveling Thinner, spray at 15 PSI (1 atm), 0.5mm nozzle, 5-15cm, temp no lower than 18c. Being in Southern CA, humidity is generally low unless its actually raining or the marine layer is overhead (I live near the coast). For flat and satin, Microscale Industries Micro Flat or Micro Satin, thinned with water as above. Spraying as above. All three dry quite quickly. I'll usually only apply multiple coats for gloss. As always, coverage first then a final gloss coat. HTH -- dnl Link to comment Share on other sites More sharing options...
Rob G Posted November 10, 2019 Share Posted November 10, 2019 I mix about that much clear to sort of this much thinner then turn the compressor on and test spray. If needed, I'll add a splash of this or a nip of that, up or down a whiff on the air pressure and off I go. Much too technical to convert to actual numbers. Link to comment Share on other sites More sharing options...
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