GOLDEN Mediums & Additives provide infinite control with acrylic colors. Mediums control transparency, viscosity and surface sheen, while additives control paint’s working properties.
Airbrush Medium modifies GOLDEN Fluid Acrylics for spray application by reducing clogging and tip buildup during spraying. Recommended for spraying on garments, Airbrush Medium may also be used to thin other products for spraying such as Iridescent/Interference Acrylics and Gesso.
NOTE: Airbrush Medium is NOT designed to mix with High Flow Acrylics (Use High Flow Medium).
GOLDEN Airbrush Medium is a 100% acrylic binder system designed for modifying the GOLDEN Fluid Acrylics and other GOLDEN Acrylic products for airbrush/spray application. While designed with the Fluid Acrylics in mind, GOLDEN Airbrush Medium will also reduce the Heavy Body, Matte, High Load, Iridescent/Interference and Fluorescent Acrylics for spray applications. GOLDEN Mediums and Gessoes can also be blended with Airbrush Medium for spraying.
This product should not be used alone, and must be mixed with other GOLDEN Acrylic paints, mediums or grounds in the recommended ratios to create a useable material. Very thick or highly textured materials thinned with GOLDEN Airbrush Medium may still be difficult to reduce for conventional spraying and alternative methods of spraying may be required.
PRODUCT APPLICATION
Because it is inherently unhealthy to inhale spray mists of any kind, we recommend, at minimum, the use of a NIOSH approved disposable dust and mist respirator.
Mixing Directions:
Generally, mix equal amounts (by volume) of Airbrush Medium and Fluid Acrylic to result in a useful spraying consistency. More Airbrush Medium or water additions may be used if the mixture does not flow properly (Refer to the Quick Reference Chart below for more complete recommendations).
Blending Suggestions:
Gently stir or shake Airbrush Medium to insure homogeneity before blending with GOLDEN Acrylics.
For thinner paint lines, the Airbrush Medium can be added in equal amounts to the paint, and then stirred until well mixed. If using paints thicker than Fluid Acrylics (such as Matte Fluid Acrylics or High Load Acrylics), continue adding more Airbrush Medium up to a 1 part paint to 2 parts Airbrush Medium. Beyond this 1:2 ratio, it is best to add water for more thinning.
Although water can be used with the Airbrush Medium to help thin the paint, it also begins to forfeit some of the spray-ability that this medium enhances, and also creates a weaker paint film. High water additions will cause the paint to become fairly weak, both in pigment load and film strength. Top coating may be necessary depending on the nature of the artwork.
Thicker paints such as Heavy Body Acrylics should be first thinned with water until they reach a pourable consistency. Once the required paint and water mixture is well stirred, begin adding the Airbrush Medium at a ratio of 1 part paint/water to 1 part Airbrush Medium.
Prior to spraying, it may be necessary to strain the diluted mixture (using cheese cloth, nylon pantyhose, or #8 mesh or finer screening fabrics) to remove any large particulate materials and ensure homogeneity and smoothness. In most cases though, Golden Acrylic products are smooth and pigments ground to a uniform particle size.
Mixing products with GOLDEN Airbrush Medium will generate foam. Pre-mix colors at least 5 minutes before use. This will allow time for the foam generated by vigorous shaking to dissipate before spraying. Micro-foam can result in an irregular film.
Add a Mixing Ball:
Add a mixing ball to aid in blending. In GOLDEN High Flow Acrylics, a barundum (a barrel-shaped, ceramic piece used in pigment dispersion) is added to facilitate faster and more homogenous mixing. Reuse barundums from old High Flow Acrylics bottles, or use a smooth stone, marble, stainless steel nut, etc. to perform this function. This is especially valuable when storing mixtures for future use.
Extend Paints:
Airbrush Medium also functions as an extender for applications requiring greater transparency and longer open time.We generally do not recommend using the Airbrush Medium with the pre-made GOLDEN High Flow Acrylics because this creates a very slow drying, potentially weaker paint film, with poor frisket performance (color sticking to frisket or masking films) until the film sufficiently dries. When frisketing is of critical importance, use GOLDEN High Flow Medium to blend with the High Flow Acrylics or other acrylics. High Flow Medium is recommended whenever a mixture requires Airbrush Medium additions greater than 2 parts medium to 1 part paint. This will yield a paint system that dries quickly, friskets well, and has excellent sprayability.
Additional Tips:
FABRIC APPLICATION
GOLDEN Airbrush Medium can be mixed with GOLDEN Fluid Acrylics to create an excellent fabric paint that does not require heat-setting. A blending ratio of at least 1:1 is recommended. Other GOLDEN Acrylics such as the Heavy Body Acrylics, Iridescent/Interference Colors and Fluorescent Colors can be used as well.
GOLDEN High Flow Acrylics are not recommended for fabric use. However, if using these colors is desired, blend with GAC 900, a thin heat-settable medium expressly designed for fabric applications. This mixture will not perform as well as the Airbrush Medium/Fluid Acrylics mix.
QUICK REFERENCE CHART
Use the table below to determine ratios of Airbrush Medium to paint for GOLDEN"s wide variety of paint systems:
Paint Type | Water | Airbrush Medium |
Fluid Acrylics | N/A | 1 part |
Heavy Body Acrylics | 3 Parts | 4 parts |
Matte Acrylics | 3 Parts | 4 parts |
High Load Acrylics | 1 Part | 2 parts |
Iridescent/Interference Acrylics | 1 Part | 2 parts |
Fluorescent Acrylics | 1 Part | 2 parts |
Mediums (GACs, Gloss Mediums, Matte Mediums) | 0-2 parts, depending on product consistency | 1-3 parts, depending on product consistency |
Gessoes | 1 Part | 2 parts |
The above ratios are intended as starting points for use at air pressures of 40 p.s.i. or greater. A greater or lesser amount of Airbrush Medium may be required for your particular equipment and/or application, especially if lower air pressures are used.
Suggested Color Choices for Fluid Acrylics
While every Golden Fluid Acrylic Paint may be used for spray application when blended with the Airbrush Medium, some colors perform better because of their pigment size and structure. Larger pigments, such as Raw Umber and Ultramarine Blue, do not spray well through smaller detail airbrushes. Dense, coarse pigments also tend to settle quickly when thinned to sprayable consistency, so mix small amounts and avoid long term mixture storage.
Below is a listing of Fluid Acrylics with their rating of sprayability next to them.
Suitable for all tip sizes
Alizarin Crimson Hue | Naphthol Red Medium | Quinacridone Magenta |
Anthraquinone Blue | Naples Yellow Hue | Quinacridone/Nickel Azo Gold |
Cadmium Red Medium Hue | Nickel Azo Yellow | Quinacridone Red |
Cadmium Yellow Medium Hue | Permanent Green Light | Quinacridone Violet |
Carbon Black | Permanent Violet Dark | Sap Green Hue |
Cobalt Teal | Phthalo Blue (Green Shade) | Titan Buff |
Diarylide Yellow | Phthalo Blue (Red Shade) | Titanium White |
Dioxazine Purple | Phthalo Green (Blue Shade) | Transparent Pyrrole Orange |
Green Gold | Phthalo Green (Yellow Shade) | Transparent Red Iron Oxide |
Hansa Yellow Light | Prussian Blue Hue | Transparent Yellow Iron Oxide |
Hansa Yellow Medium | Pyrrole Orange | Turquois (Phthalo) |
Hansa Yellow Opaque | Pyrrole Red | VanDyke Brown Hue |
Indian Yellow Hue | Pyrrole Red Light | Vat Orange |
Jenkins Green | Quinacridone Burnt Orange |
|
Naphthol Red Light | Quinacridone Crimson |
|
Suitable for tip sizes of .30mm or larger
Bone Black | Interference Green | Micaceous Iron Oxide |
Burnt Sienna | Interference Orange | Paynes Gray |
Burnt Umber Light | Interference Red | Primary Cyan |
C.T. Interference Green-Blue | Interference Violet | Primary Magenta |
C.T. Interference Green-Orange | Iridescent Bright Gold | Primary Yellow |
C.T. Interference Violet-Green | Iridescent Bronze | Raw Sienna |
Cerulean Blue Deep | Iridescent Copper | Raw Umber |
Cerulean Blue, Chromium | Iridescent Copper Light | Red Oxide |
Chromium Oxide Green | Iridescent Gold | Ultramarine Blue |
Cobalt Blue | Iridescent Gold Deep | Ultramarine Violet |
Cobalt Turquois | Iridescent Pearl | Violet Oxide |
Interference Blue | Iridescent Silver | Yellow Ochre |
Interference Gold | Iridescent Stainless Steel | Yellow Oxide |
DO NOT SPRAY-APPLY genuine cadmium pigments or any colors containing zinc white as these have trace amounts of cadmium as well. Cadmium is listed as a chemical known to the State of California to cause cancer.
The following Fluid Acrylics contain Zinc White and should never be sprayed:
Manganese Blue Hue | Viridian Green Hue | Zinc White |
Disclaimer
The above information is based on research and testing done by Golden Artist Colors, Inc., and is provided as a basis for understanding the potential uses of the products mentioned. Due to the numerous variables in methods, materials and conditions of producing art, Golden Artist Colors, Inc. cannot be sure the product will be right for you. Therefore, we urge product users to test each application to ensure all individual project requirements are met. While we believe the above information is accurate, WE MAKE NO EXPRESS OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, and we shall in no event be liable for any damages (indirect, consequential, or otherwise) that may occur as a result of a product application.
