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, Matt, High Flow, Iridescent/Interference and Fluorescent Acrylics for spray applications. Golden Mediums and Gessoes can also be blended with Airbrush Medium for spraying.
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 for more complete recommendations).
Blending Suggestions:
Gently stir or shake Airbrush Medium to ensure 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 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 cheesecloth, 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 colours 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 Airbrush Colours, a barundum (a barrel-shaped, ceramic piece used in pigment dispersion) is added to facilitate faster and more homogenous mixing. Reuse barundums from old Airbrush Colour bottles, or use a smooth stone, marble, or stainless steel nut 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 Airbrush Colours because this creates a very slow-drying, potentially weaker paint film, with poor frisket performance (colour sticking to frisket or masking films) until the film sufficiently dries. When frisketing is of critical importance, use Golden Airbrush Transparent Extender to dilute the Airbrush Colours or other acrylics. Transparent Extender 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:
Paint on any non-oily surface. Remove oils, grease, or other contaminants before application. Non-absorbent surfaces should be abraded for increased adhesion. Keep tools wet during use. Do not allow the product to dry in the airbrush. Clean tools with soap and water. Clean airbrush with water, ammonia/water, alcohol or miscellaneous household cleaners (however, consider effect of cleaner on airbrush parts, such as rings and seals).
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 Colours and Fluorescent Colours can be used as well.
Golden Airbrush Colours are not recommended for fabric use. However, if using these colours 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
(1 Part Paint addition in all mixtures) | Water
( Add in small increments to the paint before additions of Airbrush Medium) | Airbrush Medium
(Add after the addition of water, if applicable) |
| 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
(Heavy Body) | 1 Part | 2 parts |
| Fluorescent Acrylics | 1 Part | 2 parts |
| Mediums (GACs, Polymer, Matte) | 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 Colour Choices for Fluid Acrylics
While every Golden Fluid Acrylic Paint may be used for spray application when blended with the Airbrush Medium, some colours 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 a 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 colours 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 |
