Edwardkenway Posted July 21, 2019 Share #1 Posted July 21, 2019 Hi all, I could really do with some help. I've got some Humbrol clear Matt varnish but when used on the painted deck fittings it dries with white patches and looks terrible. I've tried doing a couple of very thin coats but get same results, how do I stop this or should I use different varnish? thibaultron and mtaylor 2 Quote Current builds; Henry Ramey Upcher 1:25 Providence whaleboat- 1:25 HMS Winchelsea 1764 1:48 Completed: HM Cutter Sherbourne- 1:64- finished Triton cross section scratch- 1:60 - finished Non ship: SBD-3 Dauntless 1:48 Hasegawa -FINISHED Link to comment Share on other sites More sharing options...
chris watton Posted July 21, 2019 Share #2 Posted July 21, 2019 I have always used Ronseal Mattcoat clear varnish (polyurethane), as this gives a perfect 'eggshell' finish. recently though, I have discovered The Army Painter 'Anti-Shine' matt varnish, which is also excellent. I find it is better to spray the varnish on once most parts are in place. mtaylor, Canute and Edwardkenway 3 Quote Vanguard Models on Facebook Link to comment Share on other sites More sharing options...
wefalck Posted July 25, 2019 Share #3 Posted July 25, 2019 (edited) The 'matt' in Matt Varnish is brought about by adding very finely ground pumice or the likes to the varnish. This will settle with time, so needs to be very thoroughly stirred before and during use. The white patches may be higher concentrations of the matting agent. I remember this from the days, when I used Humbrol enamels. Question: why do you put clear varnish on something already painted ? Edited July 25, 2019 by wefalck Canute, pontiachedmark, mtaylor and 2 others 5 Quote wefalck panta rhei - Everything is in flux Link to comment Share on other sites More sharing options...
vaddoc Posted July 25, 2019 Share #4 Posted July 25, 2019 Agree with Wefalck. Probably needs more thinning and more stirring but matt Humbrol is more difficult to apply than gloss and satin . Also do not go over the same area with the brush, trust the varnish. I think you need too thin much more mtaylor, Canute, Bob Cleek and 1 other 4 Quote Current projects: 21' Fisherman's Launch - plans by Howard Chapelle Completed projects: 21' Yawl Longboat - plans from the National Maritime Museum Deben 5 tonner - a Whisstock yard design 24' exploration gaff rigged ketch - a Tad Roberts design 15' knockabout sailing boat Link to comment Share on other sites More sharing options...
wefalck Posted July 25, 2019 Share #5 Posted July 25, 2019 Even in the days, when I applied Humbrol by brush, I avoided altogether the Matt Varnish because of exactly these white spots. Actually, I don't see much use for really matt varnish in ship modelling. Very few parts, apart from those where the paint has been eroded by seawater and UV light, would be completely flat. mtaylor, Bob Cleek and Canute 3 Quote wefalck panta rhei - Everything is in flux Link to comment Share on other sites More sharing options...
vaddoc Posted July 25, 2019 Share #6 Posted July 25, 2019 Try the water based polyurethane Valejo, not as tough as the enamel Humbrol but much easier to use and overall does the job well. No brush marks at all, no special skills needed, just slap it on! Amazing self levelling properties Canute and mtaylor 2 Quote Current projects: 21' Fisherman's Launch - plans by Howard Chapelle Completed projects: 21' Yawl Longboat - plans from the National Maritime Museum Deben 5 tonner - a Whisstock yard design 24' exploration gaff rigged ketch - a Tad Roberts design 15' knockabout sailing boat Link to comment Share on other sites More sharing options...
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