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"Dullcote, what is with that fine grainy finish?" Topic


6 Posts

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455 hits since 11 Jan 2019
©1994-2019 Bill Armintrout
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Baranovich11 Jan 2019 7:13 a.m. PST

So, just to premise:

I didn't spray Dullcote outside in high humidity, it was actually in a dry, interior room of 65 degrees that I ventilated to the outside as soon as I sprayed.

I didn't spray too close to the model or spray too much on in one coat.

Over the past six months I've used Dullcote on a handful of larger models. I don't use spray varnish on smaller models, I always use brush on.

When I used the Dullcote on two large Stars Wars Legion models it coated the model perfectly. When I used it on a large resin model it coated perfectly.

But then I recently used it on a large plastic model that I had base coated in Army Painter Blue spray. This time the Dullcote left a kind of indirect silvery, grainy finish. Now it's not like it ruins the model. It doesn't discolor the model at all or cover the color. It's more a texture on the surface that when it's in certain angles of light really shows up. Under other types of light it can't be seen much at all.

The ONLY difference this time from the other times that it was done over Army Painter sray. Army Painter sprays tend to leave a grainier finish than a GW spray or a Testors spray, etc. I'm wondering if what I'm seeing is simply the Dullcote attaching to the grainy finish of the base coat. Hard to tell!

Final thing is that I used the exact same can of Dullcote to spray several other GW plastics models within a few days of doing the other one however those were based coated in a GW blue spray. The grainy texturing did sort of happen over the GW spray, but MUCH LESSER. I know that Dullcote will leave a very slight, very slight texture to the finish but it's very slight.

Any way this is one of the reason why I only resort to spray varnishes on larger models where brush on isn't feasible. I've just had too many weird problems with them over the years.

Personal logo Zeelow Supporting Member of TMP11 Jan 2019 9:04 a.m. PST

Try coating the model with FFF [Future Floor Finish], and then dust it again with Dullcote.

photocrinch11 Jan 2019 12:41 p.m. PST

Was the army painter spray thoroughly dry? The only time I've seen that silvery finish is when the humidity was too high, so that is the only explanation I can think of. Another coat sprayed in dry conditions close to the model may clear it. If too far away it is possible it can dry in the air and create the grainy surface – I think…

Baranovich11 Jan 2019 12:54 p.m. PST

Yes, the Army Painter spray had dried for about a week before it got the Dullcote. And it was in dry conditions in the high 60s.

Maybe it worked fine and I'm just seeing something that's not a problem and it's just Dullcote's normal sheen.

Under the exact same conditions I sprayed several other large GW models and it didn't leave any texture like on the other one. Those other models have pretty smooth surfaces after the Dullcote was sprayed on it.

Wargamer Blue11 Jan 2019 1:32 p.m. PST

Sounds like the spray dried before it hit the model.

wrgmr112 Jan 2019 2:46 a.m. PST

Sometimes this happens with an old can of Dullcoat or it wasn't shaken enough. I always test a can before spraying a model. If it is old I replace it, just as a matter of course.

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