How to prime resin?

[snipress]

Dear all,

this might sound like a ridiculous question, but I need your help! I usually use black GW spray primer on both plastic and metall minis, which worked perfectly fine until now. Yesterday I wanted to start painitng a resin base that was primed with the GW spray primer and all the primer came easily back off when I moved my brush over the base :confused2:. How come? Anyways, this spray stuff doesnt seem to work on resin, but what else to use?

Please let me know what you would suggest!:doctor:

 

[Ritual]

First of all, I assume you mean Chaos Black spray paint? That is not a primer, just regular paint. Then, some resin pieces are covered with mould release agent that may cause primer not to stick that well. Then you should wash the piece in warm water and washing up liquid prior to priming. Make sure it's completely dry before priming. This is not always necessary, but in your case, it seems to be the problem.

 

[snipress]

If this should be the problem I´m relieved that I wont have to change my priming habist (eg. pre-spraypainting habits :cyclops

I will quickly hurry down to the kitchen and wash my bases, thank you for the hint!

By the way, whats the difference between primer and spray-paint?

 

[Einion]

By the way, whats the difference between primer and spray-paint?

The simplest difference is that primer is intended to prime

Primer is intended both to bond well to an unpainted surface (which paint often won't) as well as to provide a good surface for paint to adhere to.

Einion

 

[droogie77]

I would suggest buying a can of Halfords primer, it is very cheap and is perfect for resin. I recently had the same problem with GW black spray paint also.I washed the pieces and the paint still flaked off after it dried.

 

[snipress]

That sounds like a hint...

...cause after I washed my bases off with warm water and dishwashing detergent + toothbrush (all the spraypaint came off scaringly easy) I put it on the shelve to dry. Today I checked them and saw that there was a greasy somethin glooking like sweat coming off them Im sure it wont work with spray paint...

 

[Dragonsreach]

That sounds like a hint...

...cause after I washed my bases off with warm water and dishwashing detergent + toothbrush (all the spraypaint came off scaringly easy) I put it on the shelve to dry. Today I checked them and saw that there was a greasy somethin glooking like sweat coming off them Im sure it wont work with spray paint...

If they still look "sweaty" try washing them with either toothpaste or CIF.

 

[snipress]

What´s CIF?

 

[Ritual]

What´s CIF?

http://en.wikipedia.org/wiki/Cif

 

[airhead]

the automotive primer (Halfords) should do nicely. They are formulated to bond with metal and with body putty (bondo) - a resin similar to casting resins.

Another option is the Tamaya primer. It is designed to adhere to plastic car bodies (polycarbonate). This would be my first choice.

 

[Amazon warrior]

What´s CIF?

'S called Viss here in Germany.

 

[DXM]

Another option is the Tamaya primer. It is designed to adhere to plastic car bodies (polycarbonate). This would be my first choice.

Never had a problem in the nearly 15 years of using Tamiya Primer

 

[snipress]

Ive cleaned the bases with toothbrush + toothpaste and ordered me a can of Tamiya Fine Spray Primer (grey). I will let you know if it works better!

 

[CaelynTek]

Is this resin casting something you cast? or did you buy it?

Cause having it still oily and greasy after washing them with soap and water seems to me like they haven't fully cured yet. (perhaps the resin mix wasn't exactly right)?

I'm just guessing, cause I've never used casting resin before. But I have extensive experience with epoxy.

 

[snipress]

hm...thats possible but I bought it.
Didnt cast it myself.

 

[dogfacedboy uk1]

Try leaving it to soak in warm water and washing up liquid for several hours and then scrub it with a toothbrush again.

I am doing a paintjob at the moment and simply washed it, sprayed with chaos black (no primer) and the GW paints are working fine.

dfb

 

[droogie77]

Try leaving it to soak in warm water and washing up liquid for several hours and then scrub it with a toothbrush again.

I am doing a paintjob at the moment and simply washed it, sprayed with chaos black (no primer) and the GW paints are working fine.

dfb

Using regular spray paint on resin is a gamble. You can scrub a piece all day long and the paint can still flake off with the touch of a brush. I learned this the hard way and will never use GW spray paint on resin again. It is much better to use a primer and have no worries.