I've been feeling a bit grotty for last few days, which is why I didn't do this post on Thursday. I'm feeling better now though.
When I left things on Wednesday, I had just done some of the follow-up tests and was leaving them to dry overnight before taking photos. I actually ended up taking the photos today.
Does Varnishing Prevent Reactivation?
I airbrushed matt varnish onto the four figures from my first batch of tests. After letting it cure for a few hours, I repeated the previous reactivation tests. Smooshing a damp brush over the figure showed no sign of the Speedpaint reactivating. I then applied white paint over previously untested areas:
Conclusion - Varnishing does prevent reactivation of the Speedpaint, but for touch-ups over the stronger colours you need to use a more opaque paint than white.
The type of primer seemed to make no real difference to the run-off. However, the matt varnish did seem to reduce it but there looked to be a little less movement of the Speedpaint away from highlights and into recesses. It's difficult to be sure as it's not the same pose of figure (that might be worth another test).
Testing Different Primer Surfaces
I'd noticed that there had been some run-off in my initial tests. I wasn't sure if that was a result of the figures, the amount of paint applied or the surface. I decided to test the Speedpaints over different primer surfaces - spray primer, Vallejo primer brushed on, Vallejo primer airbrushed on and Vallejo primer airbrushed on followed by an airbrushed coat of matt varnish:
Conclusion - Type of primer used and how it is applied doesn't make any noticeable difference. However, varnishing after priming might reduce the effectiveness of the Speedpaints to work as intended.
There was no discernible difference between the white and two grey primed figures - I'll stick with the grey primer for future tests as it is easier to see that the figure is fully primed. The dunkelgelb primer had an interesting result; not too surprising as the Speedpaints are meant to be translucent. The Plate Mail primer does still look metallic, but matted down. The grey in it has darkened the colours somewhat.
It's more obvious with these two that the matt varnish has reduced the movement away from highlights into the recesses, although that could be down to the plate mail primer having a more satin finish than the non-metal colours.
I also tried a couple of figures with black wash applied over the white and grey primers and then a white zenithal (as an alternative to doing a white zenithal over a dark primer). There seems to have been less run-off but not as much reduction on the movement of the Speedpaint compared to matt varnish. The third figure was mainly to see how the Gravelord Grey looked over a dark grey base.
Over Different Primer Colours
I also tested them over some different primer colours to see what the effects would be:
White; Grey; Grey with white zenithal; Dark Yellow (Dunkelgelb); Plate Mail |
There was no discernible difference between the white and two grey primed figures - I'll stick with the grey primer for future tests as it is easier to see that the figure is fully primed. The dunkelgelb primer had an interesting result; not too surprising as the Speedpaints are meant to be translucent. The Plate Mail primer does still look metallic, but matted down. The grey in it has darkened the colours somewhat.
Plate Mail; Plate Mail plus matt varnish |
It's more obvious with these two that the matt varnish has reduced the movement away from highlights into the recesses, although that could be down to the plate mail primer having a more satin finish than the non-metal colours.
White with black wash; Grey with black wash; Dark Grey with white zenithal |
I also tried a couple of figures with black wash applied over the white and grey primers and then a white zenithal (as an alternative to doing a white zenithal over a dark primer). There seems to have been less run-off but not as much reduction on the movement of the Speedpaint compared to matt varnish. The third figure was mainly to see how the Gravelord Grey looked over a dark grey base.
Conclusion - as expected, applying Speedpaints over different base colours gives different end results.
I'll be starting some more tests tomorrow, to see if mixing different mediums into the Speedpaints affects how they work and also if they prevent reactivation. I'll also be repeating the test of varnished primer, this time using identical figures.
Another test I want to do at some point is to compare different light coloured base coats. I also want to do a proper comparison of light primer against dark primer with zenithal - I think from my tests so far, that my white zenithal wasn't strong enough, so it might need to be a two-stage grey-white zenithal over black. I was also doing them with white ink rather than paint/primer which might have made them less effective.
Some very interesting results Tamsin, and thanks for sharing your findings.
ReplyDeleteGood to hear your feeling better, think it must be the week for it, as I spent most of the week led up too ! LOL
You're welcome! :)
DeleteThanks for the scientific way you did the tests.
ReplyDeleteOne question, are you going to use these test figures for Zombies, they look just the type!...
MY plan for the model railway figures is to use them as citizens for Mega City One. :)
DeleteYOUR plan is what matters! Mega City One has lots of Zombie looking citizens!!!! (LOL)
DeleteYou could publish an academic paper on this Tamsin!
ReplyDeleteI think I'd need to get the N-numbers up for that! :)
DeleteThanks Tamsin for showing us the results of your experiments. For me, I have seen enough to know that that painting style is not for me, I shall stick with opaque paints layered over black undercoat. But you have made me interested in maybe experimenting with ink washes. If I got a couple basic colours of these speedpaints, could they be used like inks?
ReplyDeleteYou're welcome! I don't think the intended usage works for me either, but I suspect I might find other ways to use them - with their natural transparency, I reckon they could be used as glazes/filters to shift colours - could be good for OSL effects. :)
DeleteExcellent report, very nice to "see your work" to see how you arrived at your conclusions. I suspect it will save me a lot of time and effort as I delve into speed paints.
ReplyDeleteI suspect they will become one more tool to be used in certain situations much like other paint types or painting techniques.
Thanks! I doubt that I'll end up using them "as intended" except perhaps for the main coat colour of horses - my mixing tests did produce some great brown shades. :)
Delete