New and need some help please

StuartD

Have been searching the internet for FUTURE but so many differnt Pledge products out there. 

 

Bish

 

 

BlackSheepTwoOneFour

Methinks it’s the acrylic clearcoat reacting to enamel washes since acrylic is water-based. Had you used enamel based clearcoat, you probably wouldn‘t have had such a reaction using the washes. If you had used a water-based wash, I’d say you‘d have no issues. Maybe someone will chime in soon.

 

 

 

 

Sorry, i think you have that the wrong way round. You can't use enamel or oil washes on an enamel coat. The wash should be a different paint type to the base and/or clear coat. If you use an enamel wash on and enamel base, the thinners in the wash are the same thing which will thin the paint, so the paint will react.

 

Hmmm.... that I didn't know. Thank you for pointing that out for me.

Bish, Thanks for pointing that out. Also, cure times matter for how long your undercoat can stand up to an aggressive solvent and rubbing.

BlackSheepTwoOneFour

Methinks it’s the acrylic clearcoat reacting to enamel washes since acrylic is water-based. Had you used enamel based clearcoat, you probably wouldn‘t have had such a reaction using the washes. If you had used a water-based wash, I’d say you‘d have no issues. Maybe someone will chime in soon.

 

Sorry, i think you have that the wrong way round. You can't use enamel or oil washes on an enamel coat. The wash should be a different paint type to the base and/or clear coat. If you use an enamel wash on and enamel base, the thinners in the wash are the same thing which will thin the paint, so the paint will react.

Blacksheep is corrrect. You were alright to use the enamel wash if you didn't do any rubbing. The solvent in the enamel thinner will soften acrylic. If you don't rub on it, it will usually evaporate before you actually have any adverse effect, but once you start rubbing, you'll likely have problems. The acrylic clear coat buys you a little time before you see it affect the pigment of your underlying acrylic. Here's a post I found that might be helpful.

https://www.reddit.com/r/Gunpla/comments/29afqg/dumb_question_whats_the_difference_between_enamel/

So if you doing an enamel wash then no you should not be having an issue. The Acrylic paint and clear coat should not be reacting to the enamel thinners. And 2 to 3 days should be plenty of time.

Tamiya acrylics don't seem as tough as enamels, i can only think that maybe the paint has not adhered properly to the model, maybe there is some residue on the model and thats why its coming off with rubbing.

I use enamel paints and then a water based clear coat followed by oil washes useing white spirits and the only time i have paint coming away is if i have been a bit aggresive remoing the wash or filter.

priming the model might help, and if you just doing a pin wash you should be able to remove excess straight away without useing any thinner on the cotton bud.

Methinks it’s the acrylic clearcoat reacting to enamel washes since acrylic is water-based. Had you used enamel based clearcoat, you probably wouldn‘t have had such a reaction using the washes. If you had used a water-based wash, I’d say you‘d have no issues. Maybe someone will chime in soon.

How long are you letting the X22 clear coat dry?

Edit: I'm sorry, you already answered that. My bad.

Have been searching the internet for FUTURE but so many differnt Pledge products out there. 

Hi 

I am painting in Tamiya Acrylic and then top coat with Tamiya X22. 

The issue is using an enamel wash such as humbrol and taking off with Humbrol enamel thinners. Humbrol decal fix is also taking off the paint.

My under standing is that the water based acrylic and enamel oil base should not mix and i should not get a melting away of the coats. 

StuartD, Welcome back to the hobby. I took about 30 years off, too. It sounds like you are using acrylic paints. Tamiya X22 clear is Tamiya's brand of acrylic. It just doesn't have any color pigment in it. So, if you used a thinner for acrylic, like maybe Tamiya X20 to remove the excess wash, it would dissolve the clear coat and every other acrylic coat under it with a little bit of rubbing. I find that the best way to protect my underlying paint is to use an enamel clear coat over acrylic before I apply washes, especially if I plan to remove some of the wash. So, acrylic paint, enamel clear coat, then washes over that. Modelers with more experience or a softer touch can probably get away with all acrylic coatings, but I'm not one of them! So, that's how I protect my underlying paint job. Barrett

The Humbrol panel wash, is that acrylic or enamel.

You can get future here, its just not easy to find. I got my last bottle at Wilikinsons a couple of years back.

I was using Tamiya Acrylics. Paint was left for a good 24 hrs and the top coat about 2 days.

Welcome! First off, what paint did you use, Acrylic or enamel? Also how long did you let the paint and then th clear coat dry for?