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PostPosted: Wed 13 Apr 2016 18:14 pm 
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Have to agree with some of the comments regarding Humbrol enamel paints.
I don't have an issue with coverage. For me both brush and airbrush seem to cover well. Although I am in the habit of
thinning quite a lot for hairy brush painting and used to applying multiple coats.
The problem I have is that some of the colours to my eyes seem wrong, Humbrol 11 and 62 being points in case.
Not only are the colours wrong but also fail to match the colour of the lid to the extent that it is a different colour altogether.

Image

The above picture shows correctly stirred paint painted onto the lid of the same tin :shrug:
I hope Humbrol see this post and review the range. I'm starting to use alternatives especially for metalics.

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 Post subject: Re: Humbrol metalcote
PostPosted: Mon 09 May 2016 15:08 pm 
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Sent an enquiry to Humbrol early October and again in November 2015 looking for info on metalcote but no reply !. Trying to use 27002 by brush to get a good NMF finish without airbrush or spray can. Difficult to get an even finish and finding it hard to polish - maybe due to not enough drying time but what is the drying time ?. Model is the Airfix F86E Sabre. The plastic surface has slight "texture" so should it be sealed and/or polished before painting ?. Should it be thinned and more than one coat applied? Also have sent an enquiry to Airfix on another subject and again no reply.

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PostPosted: Mon 09 May 2016 15:17 pm 
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Drying time before polishing is 10 days minimum. I'd not recommend putting any varnish over it. I put Klear over the polished steel after it was nicely polished, and it turned to a dull steel grey. I agree its hard to get a smooth finish with a brush, it dries very quickly. I've not tried thinning it to brush it, just to spray it.

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 Post subject: Re: Humbrol metalcote
PostPosted: Mon 09 May 2016 15:46 pm 
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twinpin wrote:
a good NMF finish without airbrush or spray can.
The holy grail of bristle brush painters, good luck in your quest!
Joking aside, I found the Metalcotes always worked best over a grey undercoat, by experiment, a matt surface buffed smooth with some old denim. Metallisers always dry rapidly, I think this is a function of the metal flakes increasing the surface area exposed to air, causing a rapid cure. A well prepared surface is essential if you want any sort of surface finish to look flawless. I've never thinned Metalcotes for brushing, in fact they seem to work better if slightly stodgy, but you need to work rapidly and it's probably best to work on a small area at a time using panel lines as a boundary. I've never had any issue with polishing Metalcotes when they appear to be surface dry/set, but to be honest I've only usually used them for small parts and detail components.

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PostPosted: Tue 10 May 2016 10:25 am 
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Painting Humbrol Metalcotes with a brush is tricky, but you can do it. I found that you must use grey primer, then a single coat of paint, next a coat of Klear then another coat of paint. Finish with at least two coats of Klear.

Here's a thread of a Boeing Stratoliner I did a while back before I bought an airbrush.

viewtopic.php?f=3&t=7649&hilit=stratoliner

BTW,
Use a flat brush.

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PostPosted: Tue 10 May 2016 15:00 pm 
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I have lost faith in Humbrol metallics since the formula changed. I still use them as an undercoat but then I put a coat of clear over them then brush thinned Revell Aquacolor and get a much better finish a la B-58.

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 Post subject: Re: Humbrol metalcote
PostPosted: Fri 10 Feb 2017 01:42 am 
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peebeep wrote:
twinpin wrote:
a good NMF finish without airbrush or spray can.
The holy grail of bristle brush painters, good luck in your quest!
Three words, my Portuguese friend. Vallejo. Metal. Color.

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PostPosted: Fri 14 Jul 2017 23:52 pm 
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Recently bought a tin of 102 enamel, my old tin had dried out, found the new paint has a thick consistency, stirred very well, but coverage very poor, very little sign of pigment. In my job we quite often brush paint building site machinery, we have been having similar problems with the paint, older paint very good, one coat over the undercoat and job done. Newer paint from the same supplier is behaving just like the newer tins of Humbrol.
After weeks of paint problems and complaints, trying different batches, the paint suppliers have got to the bottom of the problem, New eu legislation has banned lead from the paint, as a result the formula has been changed and is causing the problems. Going by the fact that the paint in work was having the same problem as the humbrol paint I bought recently I suspect the problem with the humbrol paint is the lead has been removed


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PostPosted: Sat 15 Jul 2017 17:43 pm 
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Since they banned lead over here people are much more intelligent.

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PostPosted: Mon 24 Jul 2017 04:54 am 
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Lead in paints has been banned for 45 years so I doubt if thats the cause.*
Its more likely to be something to do with the materials used as the colouring agent

* for many years I had a sub-company which made children's toys and furniture; I had to have the papers from the paint companies to show they were all lead-free. I closed that business down in 1996

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PostPosted: Mon 24 Jul 2017 17:52 pm 
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I thought the same thing about lead in paint, that it was banned many years ago so a manufacturer telling me that paints contained lead up until this year was a surprise, I don't know either way wether humbrol used lead but the problem seemed similar to what I'd come across with other paints I use and I was informed that was the problem with the other paints I used so I'm doing a comparison between the paints, And as I said just suspected it could be the problem, But I definitely think the paint formula has changed compared to older tins of humbrol enamel, I'm definitely not an expert on paints or painting and know very little about paint legislation


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PostPosted: Tue 25 Jul 2017 01:20 am 
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I no longer have the spec sheet handy but I can positively say that Humbrol had ceased putting lead in their enamels by 1984
I used to use their 50ml sized paints and had to have the spec sheet for inspection by trading standards

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PostPosted: Tue 25 Jul 2017 17:29 pm 
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Since you have evidence from humbrol that their paint is lead free Then it's not a lack of lead is causing the problems with enamel paint, I'd love to know why the quality suddenly went downhill, Though due to the problems I've had with recent enamel paint I've bought I have now started buying humbrol acrylic paint, Over time the acrylic paint will take over from enamel in my Collection, so far I've had no problem brushing acrylic, with air brushing I think I need to thin the paint slightly more


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PostPosted: Wed 26 Jul 2017 11:27 am 
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@Fergal71 - I can't actually prove this, but I strongly suspect that the loss of product quality coincides with the manufacture being outsourced overseas, and Hornby group are now bringing the manufacture of all their products (well except decals, because there are very few firms have the capability to print decals) back to the UK.

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PostPosted: Wed 26 Jul 2017 22:34 pm 
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Could well be, outsourcing overseas can have problems with quality control, hopefully there'll be an improvement


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PostPosted: Thu 27 Jul 2017 07:51 am 
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The only problem with the 'blame it on the foreigners' theory is that most of the coverage/flow-quality problems - but not the colour consistency issues - seem to have arisen after production was brought back to the UK. Easy enough to check, if the offending tins have the Union Flag printed on them they were made here!*

*That's actually 'there' for me, but you get my drift ...

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