Sealing finish on models

 
  yogibarnes Locomotive Fireman

Hello fellow modellers.
I've finished building a HO model of the NSW South Coast Daylight Express and painted it in cream and green, now decalled.  Looks nice.
Went to airbrush seal it with my trusty Dullcoat can and damn it, I'm out.  I'm miles from anyone who can supply the stuff and these days I don't think you can purchase aerosols through the mail.
So, I'm reaching for some polyurethane satin (Estapol clone) from the garage shelf and am contemplating airbrushing using common commercial lacquer(?) thinners.
Anyone have any experience with polyurethane finishing of models?  Did it work?

Sponsored advertisement

  TheBlacksmith Chief Commissioner

Location: Ankh Morpork



Hello fellow modellers.
I've finished building a HO model of the NSW South Coast Daylight Express and painted it in cream and green, now decalled. Looks nice.
Went to airbrush seal it with my trusty Dullcoat can and damn it, I'm out. I'm miles from anyone who can supply the stuff and these days I don't think you can purchase aerosols through the mail.
So, I'm reaching for some polyurethane satin (Estapol clone) from the garage shelf and am contemplating airbrushing using common commercial lacquer(?) thinners.
Anyone have any experience with polyurethane finishing of models? Did it work?

"yogibarnes"


You can be pretty sure that Testors Dullcote will not react adversely with the paints you have used. Can you say the same for your Estapol clone? Is it worth the risk?

  dthead Site Admin

Location: Melbourne, Australia

can you make a mockup of similar finish and paint and try that ? Might time time to do, but.

Regards,
David Head

  allan Chief Commissioner

Humbrol have sold Urethane varnishes for many years. And Estapol has caused me no grief, either. If you are going to thin the varnish with GP (AKA lacquer) thinners, spray it on dry. It's the MEK in the thinners that may be a problem.
  The railway dog Train Controller

Location: Adelaide Hills
I've been known to use hardware store style aerosols to seal models & gotten away with it. Can't rember the brands so that's not much use. But it sounds like you've put a lot of effort in so far & I wouldn't take the chance.
  Coastboy7 Locomotive Fireman


Hey what colour and brand did u use to paint you set. I have a south coast set im half way through and was wondering what paints to use.

Cheers

Bob

  Albert Chief Commissioner


Frontline Hobbies https://www.frontlinehobbies.com.au/


Offer courier sevices for dangerous materials transport.

Or try ordering the non aresol dulcote. https://www.frontlinehobbies.com.au/products/TES-1160?Model Master Dullcote LacquerJar 51.7ml?Model Master Dullcote LacquerJar 51.7ml

  The railway dog Train Controller

Location: Adelaide Hills



Frontline Hobbies https://www.frontlinehobbies.com.au/


Offer courier sevices for dangerous materials transport.

Or try ordering the non aresol dulcote. https://www.frontlinehobbies.com.au/products/TES-1160?Model Master Dullcote LacquerJar 51.7ml?Model Master Dullcote LacquerJar 51.7ml

"Albert"
Albert, I hadn't seen the Dullcote laquer in bottles before. Can you brush paint with it? Floquil do a similar flat finish.

  VRfan Moderator

Location: In front of my computer :-p



Albert, I hadn't seen the Dullcote laquer in bottles before. Can you brush paint with it? Floquil do a similar flat finish.

"The railway dog"


I use the dullcote in a bottle and spray it with an airbrush. I honestly don't see the point in attempting to brush paint it. Even if you could get it to work, the finish just isn't the same as sprayed.

  TheBlacksmith Chief Commissioner

Location: Ankh Morpork





Albert, I hadn't seen the Dullcote laquer in bottles before. Can you brush paint with it? Floquil do a similar flat finish.

"The railway dog"


I use the dullcote in a bottle and spray it with an airbrush. I honestly don't see the point in attempting to brush paint it. Even if you could get it to work, the finish just isn't the same as sprayed.

"VRfan"


What he said.

  yogibarnes Locomotive Fireman

Thanks for the feedback gents.
It appears little is known of this topic.  As has wisely been noted, the risk is not worth it.
I will save the experiment for the next expendable item which crosses my workbench.
Cheers
  1213Driver Chief Commissioner

Location: Perth Western Australia

I have only mostly used a Wattyl Estapol Matt to finish my models and until my most recent model have had little to no problems with it.
The beauty of the Wattyl is that its just a trip to your local hardware store and cheaper overall.

This is one of my many models finished in Wattyl - the curves on the roof and corner posts as well as the sides give a bit of an idea on the finish you get.


The only problem I have really had was on my most recent model where I found the decal I used, reacted to both the Wattyl and also the Testors dull coat sprays - not sure if this was due to the sprays or the fact that the decal was only a few days old from printing.

This pic below ( I cant get it to show for some reason so click on it to reveal) shows the effect with the first decal crackling. I had to do some gentle brushing with a Humbrol varnish to tidy it up to look as it does here below. Obviously this pic is seriously blown up in size so at a distance this one looks ok unless put under the microscope.


I eventually sealed the remainder of my decals with a light brush coat of humbrol satin and then an overall spray of Wattyl as shown here below. It was one long decal so perhaps the greater area also contributed to the initial problem.


I think the Wattyl does give a nice finish and of course is easy to use from the spray can. I know many of the guys in my local modeling group also use the Wattyl and it is recommended as good cheap option. Everything we do is either scratch built or produced from urethane kits we make, so we do have some experience with what we do. We are of course always learning and sometimes the products do change as well.
As has previously been mentioned though - a test done on a sample model never hurts if you can spare the time.

  yogibarnes Locomotive Fireman

Thanks 1213Driver for the update.  Might just bring forward the test.

Sponsored advertisement

Subscribers: The railway dog

Display from:   

Quick Reply

We've disabled Quick Reply for this thread as it was last updated more than six months ago.