I remember reading a post on this forum some time ago regarding recipes for mixing two lacquer sheens together to achieve a desired sheen, but can’t remember the formula. I have a hazy recollection that it might be, add the 2 sheens together and divide by 2. For example 1 part 90 deg. and 1 part 20 deg would give 110/2 = 55deg. But that just doesn’t seem righ.
Does any one know how this can be done?
Replies
I can't confirm your formula, but it would seem like a decent starting place for a few experiments. The manufacturer's tech support people would be the best place to really get a formula.
By the way sheen isn't measured in degrees. The numbers are really dimensionless "gloss units" based amount of light reflected from a surface compared to the same amount of light reflected a given reference surface The measurement must be made at a specific angle. For paints these angles are typically either 20 degrees,60 degrees, or 85 degrees, depending the the range of glosses being measured. For a consistent comparison, all tests of different sheen lacquers would need to be measured using the same reference angle. The test details are specified in various ISO, DIN or ASTM test standards.
Interesting info Steve, thanks. I'll just experiment till I get it.
Sheen
I buy gloss lacquer and a can of flatner. They say 5 % of flatner will make a gloss finish satin.
I find that accurate when using their recommendations. Anyway a starting point - hope it helps
SA
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