Grumbacher - Sun-Thickened Linseed Oil

Sun-Thickened Linseed Oil

Blend custom mediums with balanced viscosity between raw and stand oil

Sun-thickened linseed oil occupies the sweet spot between raw linseed oil's fluidity and stand oil's heavy viscosity. This medium modifies paint consistency for smoother brushwork while intensifying color depth and building luminous surface gloss. The polymerized structure creates flexible, durable paint films that resist cracking as they age, essential for paintings built up in multiple layers or worked with impasto techniques.

Traditional painters blend sun-thickened linseed oil into custom mediums, controlling flow and drying time to match specific techniques. Mix with turpentine or odorless mineral spirits to create glazing mediums with adjustable viscosity, or add directly to paint for improved leveling without excessive thinning. The moderate thickness integrates easily into color without the lengthy drying time that stand oil requires.

Grumbacher packages this medium in a 2.5-ounce bottle, enough for extended studio use while remaining manageable for artists who prefer mixing small batches of medium as needed. The controlled consistency ensures predictable results whether you're building up glazes, improving paint flow for alla prima work, or formulating mediums that balance handling properties with archival stability.

Painting

Painting Purchase Guide

Paint Types

Acrylic Paints - Fast-drying, water-based paints perfect for beginners and professionals. Versatile medium suitable for canvas, paper, wood, and other surfaces.

Oil Paints - Traditional slow-drying paints offering rich colors and extended working time. Ideal for detailed work and blending techniques.

Watercolors - Transparent water-soluble paints for creating luminous, flowing artwork. Perfect for landscapes, illustrations, and expressive painting.

Decorative Paints - Specialty paints for furniture, walls, and decorative projects. Includes chalk paint, milk paint, and metallic formulations.

Painting Tools - Essential painting accessories including palettes, mediums, varnishes, and cleaning supplies for professional painting work.

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