Lead Adventure Forum
Other Stuff => Workbench => Topic started by: dominic on March 29, 2007, 05:58:26 PM
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Hi, just wondering what would be a good primer for resin models?
Any tips?
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There is a special brush-on resin primer from Tamiya that is available in most hobby shops.
I have it somewhere in my workshop, but never got round to trying it.
I always use acrylic matt white from a spray can because it is quicker, Citadel works fine.
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always wash your resin pieces with a soapy watersolution before painting to remove the release agent, then prime.
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Yup. I usually prime with GW spray after cleaning with detergent and have never had problems; if you prime by hand, however, you´re in for quite a ride.
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car primer, as described here: http://www.kevindallimore.co.uk/pdf/web%20THUNDERBOLT_RGB.pdf
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Knox - thanks! Very useful link!
Need some help though - What is "grey cellulose car primer" auf deutsch?
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Haftgrundierung, gibt's in jedem Baumarkt bei den Autolacken.
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Alles klar!
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I use the Modell Primer spray, available from most hobby shops these days, as it is a bit cheaper than GW spray primer. And since I know that I don't use release agent with my own resin stuff, I don't bother washing it. Generally speaking, it is a good idea though. I once had a resin kit which in my adolescent flippancy I primed without washing. With the slightest touch of the brush, large primer flakes came off. I had to strip the whole model and do it all over again.
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I also use car primer. No bad experience yet.
Bjoern
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Another useful Sticky
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Another vote for car primer. I use Halfords Acrylic body primer, comes in Red, Black, White and Grey. They do acrylic sprays in loads of colours, they aren't primers but may do the job, not tried them.
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I use Halfords Matt Black spray, not the primer, just the regular paint.
A bad experience with a spray primer that contained some sort of filler put me off anything marked "Primer". It ate all the little "dents" in my model and left me with e wonderfully flat surface to paint. :(
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I use basic hardware-store primer, too. Generally grey, although there's a can of black primer around here somewhere.
I buy whatever's on sale, haven't had a bad lot in ten years of painting now.
Hobby primers are insanely expensive - GW charges double hardware-store prices, for crying out loud, and the Testors hobbystore stuff is even worse.
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I have used mostly Floquil Grey spray primer for my resin and it works well. Nice color to paint up from for scenery pieces too...
Though I need to find another source for it now that I have moved to California... perhaps a model railroad shop will
stock it?
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Huh, seems I'm the only one who uses regular old black acrylic paint applied by hand.
I have tons of resin scenery pieces. It is usually a fairly time consuming process but I'm usually satisfied.
I wonder if that means I'm missing out on something but I've always been real satisfied with it.
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I think it is the experience of me and several others that water based paints, like acrylics, do not stick as well to resin as other, specialized paints. I'd say it has to do with the bonding medium and pigment granularity in acrylics which makes the difference.
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Wow that was a lot of big words. OK so I'm behind the times. I happened to be painting a coat on a cottage last night when I noticed a whole tiny piece of primer flake off.
It never occurred to me to wash resin before painting.
Oh well. Maybe the many coats of paint sealant will compensate.
::)
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Hey, if you found a methods which works for you, power to you, my friend! :)
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You guys guide and inspire me. ;)
I have for many years primed everything with black.
You fellows have encouraged me set aside a couple expendable figures to see how I like using grey and white primers.
I've always enjoyed the built-in shadowing that black provides but I'm curious about trying a few experiments with brighter colors.
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:o You know what curiosity did to the cat, dontcha? It kilt it dead, that's what!
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OK everybody... as far as priming figures...
who uses what color?
black
white
grey
Just how much in the minority am I using black?
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Depends what I'm painting.
If I'm doing something that will have predominantly light colours I'll use white. Most of the time I use black. Never tried grey but I know a few people who use it for vehicles.
My latest army is primed a dusky red as the dominant colour is red and it saves time when painting red as I don't need to worry about coverage too much.
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I'm a black spray all the way man.
For very large scenery I'll brush on black.
I formerly used white, but switched about 15 years ago and haven't felt the need to go back.
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Grey, almost always. It's neutral, you can go light or dark over it.
I've used black in the past, but only on a few sets - got a 15mm orc/goblin army all done with black primer.
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I always brush on my undercoat, as its more enviro friendly! Actually, thats a bit of a lie as I do use pray if Im feeling lazy. Any cheap matt grey primer will do the job, in the UK you can get it from Wilcos for less than a fiver....
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in the UK you can get it from Wilcos for less than a fiver....
sometimes, they have it in Poundland for less.................
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I know this is an older thread but since many people JUST read these for the info heres my 2 cents!
I have quite a lot of XP with resin primering and painting. I do my own casting, moldmaking, and have built my owm vacum chamber (for degassing "bubbles")
When you first get you Resin piece smell it! does it have a strong, mild, or week smell? Is it "sticky"? Resin pieces use to mixed conponets and as they cure they leach out gas. The stronger the smell the younger the piece or I should say Green, not yet fully curred! uncured pieces may have a problem keeping paint on so I would stick them in a dry, not cold, warm is better, light is better place for a week and recheck. I have had pieces by some casters that took a year to settle down! youmight wash it once before setting aside.
Most important is as preveious post said WASH/SCRUB dry WASH again! I an most caster use various mold release agents and their made to keep things from sticking. Get it off now or your paint will come off later!
I prime resin the same way I treat metal, with a GOOD quality fast drying automotive metal primer. You can do a test on a spot before the whole model to be safe.
Good luck.....(http://www.historicalhobbies.com/images/HHjpgs/WarMch1.jpg)
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Some resins don't take paint well - like trying to paint a bar of soap. The grey resin doesn't seem to be as sensitive as the butter colored resin. I second Vonkluge & suspect some resin batches don't quite cure properly. I've experimented with every conceivable combination of acrylic or oil primers and washing in warm water, thinner, alcohol, and found that the primer still "lifts." Waiting time may be the key. The best results of primer came from giving the resin models a quick rinse in Lacquer Thinner, then prime with Testors Lacquer Primer. Be really careful with lacquer thinner - it will melt plastic! and burn like gasoline. Here in the US Krylon makes a primer formulated (shellac based?) for plastics which works pretty well.
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Resin colour is not much of a guide, as a small amount of dye will change the colour from "buttery" to grey. Also, resin changes colour over time, especially if handled by a smoker. I kid you not!
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Halfords grey body primer works for me 99% of the time. I've only had two or three cases where it didn't adhere over the six years I've been selling commercially (all the unpainted items get sent out with a coat of primer on them and the ones that didn't adhere I kept).
cheers
James
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I use Halfords Grey primer very good for resin used it for years without any problems
Panz
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I've been selling commercially (all the unpainted items get sent out with a coat of primer on them).
I didn't realise that.
Do you put it in big print on your website? If not it might be worth pointing out - saves time and money.
I find it a hassle washing resins to get rid of mould release agent before undercoat.
It generally takes most of a weekend to do a batch - washing, waiting for it to dry fully, spraying, waiting for that to dry and the smell to go.