Grumbacher - Acrylic Gloss Medium & Varnish

Acrylic Gloss Medium & Varnish

Protect finished acrylics with crystal-clear shine or boost flow mid-painting

Mix it into paint for smoother application and enhanced transparency, or brush it over finished work as a protective varnish. This formula maintains the fluid handling properties that make acrylic painting efficient while intensifying color saturation and creating reflective surface shine.

Crystal-clear formulation dries without yellowing or clouding, preserving color accuracy beneath its protective layer. The medium increases paint flow without compromising opacity control, you get easier brushwork and extended open time for blending while maintaining the ability to build from transparent glazes to solid coverage. Applied as varnish, it seals completed paintings against dust and minor surface damage while unifying sheen across mixed-media layers.

Grumbacher formulates this medium to remain flexible after curing, moving with canvas expansion and contraction rather than developing stress cracks. Brush it on in thin, even coats for varnishing, or add progressively to paint until you achieve desired flow characteristics. Works particularly well for creating luminous glazes over dry underlayers and for artists who prefer high-gloss finish to matte or satin alternatives.

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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