Jo Sonja : Artists' Mediums : All Purpose Sealer

Jo Sonja All Purpose Sealer is a pure acrylic medium with strong adhesive properties, designed to seal a wide range of surfaces before painting. It can be used on wood, tin and other metals, glass, unglazed bisque, terracotta, card, paper, and fibreboard, and can also be mixed with colour for one-step basecoating.

All Purpose Sealer helps improve paint adhesion on both standard and unusual surfaces, including soaps and candles, and can be applied full strength or diluted depending on the surface and technique. For metal, surfaces should be clean, rust-free, and well sanded before applying two undiluted coats; maximum adhesion develops over time, reaching around 80% cure in 24 hours and full cure in two weeks under normal conditions.