Oil colour tube Cobra Artist by Cobra, water-mixable, Transparent Oxide Red (shade 378)

Cobra Artist water-mixable oil colour in Transparent Oxide Red (shade 378) is a professional-grade oil paint formulated to be thinned and cleaned with water while maintaining traditional oil handling and drying characteristics. The tube delivers a buttery, high-opacity pigment mass that permits glazing, layering and fine detail work without the need for solvents. It is formulated for use on canvas, primed panels and other properly prepared surfaces where oil paints are normally applied.

Advantages

This water-mixable oil colour combines the working properties of conventional oils with the practicality of water thinning and brush cleaning. It offers good pigment load and predictable drying behavior, allowing for extended blending time and reliable layering. The formulation reduces the need for turpentine or mineral spirits, which simplifies studio hygiene and ventilation while preserving the depth and richness typical of oil paints.

Suitable for

• Artists who want oil-paint handling but prefer solvent-free thinning and cleanup
• Glazing, scumbling and layered painting techniques on canvas and primed supports
• Detail work and fine brushwork where controlled viscosity is required
• Studio use where reduced solvent exposure is desired

When it may not be suitable

If your practice depends on the specific effects produced by traditional solvent-based mediums (for example very rapid thinning with solvents or particular varnishing workflows), this water-mixable formulation may behave differently. For artists who need extremely fast drying times or who rely on solvent-specific mixing properties, adjustments to technique or additional compatible mediums may be necessary.

Key specifications

• Colour: Transparent Oxide Red (shade 378)
• Paint type: Water-mixable oil colour
• Consistency: Smooth, buttery paste suitable for brush and palette knife
• Compatibility: Mixable with other water-mixable oil colours and dedicated water-mixable mediums
• Suitable surfaces: Primed canvas, primed panels and other oil-accepting grounds

How to use

Apply directly from the tube to your palette. Thin and blend using water or recommended water-mixable mediums to achieve desired viscosity and translucency. For glazing and layering, work with thin, even layers and allow adequate drying time between layers according to environmental conditions. Clean brushes and tools with water and mild soap; for thorough cleaning, use water several times and reshape bristles before drying. Follow standard oil-paint conservation practices when finishing and varnishing; use varnishes compatible with water-mixable oils.

What to consider before purchase

• Contains oil-based pigments in a water-mixable vehicle — not the same as acrylic or watercolour
• Designed to be mixed with water and water-mixable oil mediums; not recommended to mix with traditional solvent-based oils
• Ensure your supports are properly primed for oil paint to prevent absorption or long-term adhesion issues

Usage recommendations

For best results, start with thin layers and build up opacity through glazing or impasto as needed; allow sufficient drying time between layers and use only compatible water-mixable varnishes and mediums to ensure long-term stability.