Forum adverts like this one are shown to any user who is not logged in. Join us by filling out a tiny 3 field form and you will get your own, free, dakka user account which gives a good range of benefits to you:
No adverts like this in the forums anymore.
Times and dates in your local timezone.
Full tracking of what you have read so you can skip to your first unread post, easily see what has changed since you last logged in, and easily see what is new at a glance.
Email notifications for threads you want to watch closely.
Being a part of the oldest wargaming community on the net.
If you are already a member then feel free to login now.
I recently purchased a spartan assualt tank from forgeworld. I clipped filled and cleaned the kit as instructed, making sure to use warm water some degreasing soap and a old toothbrush to remove the release agent. I've recleaned the model several times but I still cannot get any primer to hold to the resin, it just kind of beads up and falls away. I was wondering if there was anything else I could do or if I maybe did something wrong preparing it. I'm using vallejo airbrush surface primer.
Did you soak it in a grease cutter like Dawn?
I leave mine in hot water with Dawn for 24-48 hours, then scrub with really really hot water and a tooth brush, first dipping the brush in straight dawn and scrubbing the model, then scrubbing again under really really hot water.
When I say really really I mean as hot as you can stand and still keep you hand under it.
When I prime larger resin models I usually use a self etching auto primer and follow up with a regular primer for better surface (I only use the self etching primer on larger models with large open panels).
That is my process and I don't have issues with the paint coming off, but I have read horror stories online about people painting titans and the finished model having paint flake off...
Automatically Appended Next Post: I should also mention you obviously can't scrub everything this way, as it would destroy small, thin or delicate pieces.
This message was edited 1 time. Last update was at 2017/02/23 21:37:27
I've had resin like this, too.
I had to go over it with very fine sandpaper to give it some extra tooth for the paint to grab. I'm talking 2400 grit, here. Just enough to take the shine off the resin. My normal auto etch primer just wasn't sticking to it - and it sticks to most things like babygak to a blanket.
Other times, I've used a very fine abrasive cleaner like silver polish or toothpaste to do a similar thing.
I'm OVER 50 (and so far over everyone's BS, too).
Old enough to know better, young enough to not give a ****.
That is not dead which can eternal lie ...
... and yet, with strange aeons, even death may die.
bladeiai wrote: Did you soak it in a grease cutter like Dawn?
I leave mine in hot water with Dawn for 24-48 hours, then scrub with really really hot water and a tooth brush, first dipping the brush in straight dawn and scrubbing the model, then scrubbing again under really really hot water.
When I say really really I mean as hot as you can stand and still keep you hand under it.
This seems like serious overkill, to me. I'm sure it works, but I suspect the pendulum has been swung too far the other way.
In my experience with FW resin, mere dish soap, warm water, and a thorough scrubbing was all it needed. Several Eldar vehicles and many DKoK infantry platoons/crew weapons agree with me.
Of course, there's nothing wrong with extreme soaking or hot-hands, if that works for you. Especially so, if you're chilly.
I don't think your problem is the forgeworld resin OP
Although you may not experience the same problems I recommend avoiding Vallejo primers.
People say that they do not have "tooth" and I can confirm this from personal experience.
Try spray cans or If the climate does not allow this go for airbrushing options.
