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Humbrol Satin Clear finish


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I've been advised that all "varnish" will yellow over time. It will, also depend on the underneath colour as to how evident yellowing will be.I have one LNWR carriage built many years ago that now looks like something the GWR (spit!) painted.

 

Johnson's Klear has been suggested as a better alternative. There are also some specialist clear coatings available such as MicroScale products http://www.microscale.com/Merchant2/merchant.mvc?Screen=CTGY&Category_Code=FINPROD

 

I've used these recently but it's too soon to tell if they are "yellow" proof.

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I've been advised that all "varnish" will yellow over time.

 

Yes that is true. But acrylic varnishes tend to be less marked than polyurethanes. The other thing to remember is that thinner is better. Essentially the acrylic varnish acts like a filter so at first it will be clear and then yellow over time, if you have a thin layer the depth of colour will be lessened and in any case a thin layer tends to be tougher than a thick one.

 

I use the Windsor and Newton brush on acrylic varnish which (from trying just about every varnish on the market - at the time - including aerosols) I have found to be superb. It takes the briefest of shakes to thoroughly mix (no incessant stirring of the blob of gloop at the bottom of the bottle) it goes on very easily it is "hazy" and quite liquid and dries to a superb finish (gloss, semi or matt) and leaves no visible brush marks that I've ever been able to find. I've been using it now for about five years in which time it keeps changing it's bottle labeling but, seemingly, not its formulation.

 

Recommended.

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