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Chart 1: Graph showing decrease in gloss v greater additions of water.

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 Storage: The much more watered down the paint, the an ext the pigment particles will begin to separate out and gravitate in the direction of the bottom. To avoid this if working, friend will need to stir regularly to store them in suspension. The is also best to just mix increase as lot as you need in the really short hatchet as an extremely thinned the end paints can build mold since the as whole pH start to move towards neutral and the biocides that were originally added have become too diluted to it is in effective. If you need to make up larger quantities, always use distilled water and store in clean uncontaminated containers. Also, adding a very tiny amount the unscented household ammonia (about a capful every gallon that water) will maintain an alkaline pH that discourages spoilage.

Our Recommendations

Given every one of the results, where perform we finish up in regards to recommendations? While over there is naught wrong with our larger advice that a 1:1 ratio, i m sorry is both easy to remember and also eyeball in mixtures, that remains an extremely conservative limit and also we want people to feel much more confident and also comfortable trying out mixtures well over that. We hope the guidelines listed below will help:

First, simply a reminder that the complying with guidelines space for using golden Heavy Body, Fluids, and High flow Acrylics on optimal of gold Gesso, Mediums, or Grounds, and also other class of those same repaint lines. We have the right to not speak come the power of other brands the acrylics.

And, even an ext importantly: constantly Test for your applications to make certain it meets your needs and also expectations. 

Adhesion

In every our testing adhesion was never ever an issue, also at 1 component paint come 100 components water.

Up come 1:20 repaint to Water

Water SensitivityWhile for many colors this have to remain a non-issue, also at greater levels that dilution, we did see an increase in water sensitivity because that things like Raw Umber, with its naturally high clay content, or the an ext dye-like Anthraquinone Blue. Other instances will most likely vary with repaint lines and also the nature of your application. If you just want to take it the guesswork out of it, girlfriend can constantly blend a minimum of 1 part golden Acrylic Medium, choose our fluid Matte Medium, Gloss Medium, GAC 100, or High circulation Medium, and also 10 components water. Then thin to her heart’s content. And if ever before in doubt, water sensitivity is super easy to test with a cotton swab or item of cotton fabric and also some water. Just let the applications dry totally and know that water sensitivity will regularly improve through time.Sensitivity to other ProductsWhile we only tested heavy Body and also OPEN Titanium Whites, we execute not anticipate any kind of problems applying additional layers of golden Acrylic Colors.Applying Polymer Varnish or golden Mediums, consisting of our brush-on Isolation Coat recipe of Soft gel Gloss and water, straight to extremely thinned and also water sensitive colors, can reason some color lift. And also for part colors, favor Raw Umber, dark halos might develop approximately the outer edges of the application. If needed, a injected on Isolation Coat might be required, or usage of our Archival Varnish together a way to to decrease sensitivity before using further layers. Alternatively, monitor instructions listed below to rise film durability.

Above a 1:20 ratio of repaint to water, or at any time needing decreased water sensitivity

We introduce using a minimum of 1 part gold Medium to 10 components water to thin acrylics over a 1:20 ratio, or whenever an ext durability is needed. Doing for this reason will rise film strength and also lower sensitivity come both water and also other gold Mediums and also Varnishes.

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Note on open up Acrylics and also Mediums

With open Acrylics, adding big amounts of water it s okay a tiny more complex as the will significantly reduce the functioning time that the paint, i m sorry is generally the key reason human being use the in the an initial place. And of course, together we shared, water sensitivity is generally higher in this line. That said, just in terms of adhesion, we witnessed no problems in ours tests i beg your pardon went together high together a 1:20 ratio of open to water. If wanting to host onto much more of the functioning time of the OPEN, and also still develop a wash, discover using either our open Thinner or a blend of water and also OPEN Medium.

Some thinned down golden Acrylic Colors showed increased sensitivity to open up Thinner, which has a high level the glycols. This sensitivity might extend come other open up Products, so constantly test if using on optimal of extremely thinned under washes. Use of one Isolation Coat, as soon as possible, would certainly be recommended, or slim the initial class of acrylics making use of our encourage minimum mix of 1 part medium to 10 parts water