discussion Pin Wash Clean-Up

[Guest]

Good evening,


Can anyone offer advice on pin washes. I apply a pin wash to panel lines after applying a coat of gloss varnish to the model and allowing 24 hours curing. I use a Wilder Deep Shadow wash and let it dry for 20 minutes before removing the excess. And this is where the trouble starts, I end-up with dark patches of wash on the model that won't come off without heavy use of thinners that spoil the paint.

 

[Guest]

It sounds like the wash is staining the varnish, in which case you need to change the varnish. It all depends on the 'bases' of the paints involved, i.e. if you are using an acrylic based wash on an acrylic based varnish then it will almost certainly stain. Most people use an oil based wash over an acrylic or enamel varnish but you are basically looking for a pair of paints that are of a different base. I'm sure there are others who could explain better than that but it might just help a bit.


It might help if you can tell us what type of paints the varnish and the washes are.

 

[Guest]

Without knowing what type or brand of varnish you've used it's hard to pinpoint a cause. However, IMHO 24 hours curing time isn't enough. Varnishes cure slower than paints & I always leave mine for at least 48 hours. Sometimes longer!


You might also try dabbing at the edges of the wash with a tissue or cotton bud before it dries out to reduce the spread, especially where the pinwash is first applied.


Cheers


Patrick

 

[Guest]

The varnish is Klear Pledge Muti-Purpose Wax but it's not the original one that everyone raves about). The wash is called Deep Shadow, a Nitro product manufactured by Wilder.

 

[Guest]

Well if the Klear pledge is anything like the original it is an acrylic clear varnish. The Wilder Nitro washes are enamel based so you should be OK. I think Patrick may have a good point, you need to ensure the Klear is completely hardened so it may need a bit longer. It is also a bit of an unknown now just what the new Klear consists of, the old one was basically nothing more than just an acrylic clear varnish, so it may well be worth going back to a basic acrylic clear such as a Tamiya or any other well known make.

 

[aaron]

The varnish is Klear Pledge Muti-Purpose Wax but it's not the original one that everyone raves about). The wash is called Deep Shadow, a Nitro product manufactured by Wilder.

I've had a similar issue but I was using mineral spirits not odourless spirits to clean my wash. Lesson learnt for me. Now I leave my klear for days to cure and use white spirits not mineral and I have no issues.

 

[Guest]

A good resource is Swannys Models


http://www.swannysmodels.com/TheCompleteFuture.html


It's an US site so some brand names are different.

 

[Guest]

Thanks for your advice, i've been using the wrong solvent for clean-up. White spirit works just fine


Andy