This is the stuff! Lascaux Fixative can fix, seal and protect almost anything, making it the Swiss army knife of fine art fixative. Its a conservator-quality acrylic sealer that is clear, non-yellowing and it will not change the hue of colors upon drying. Lascaux Fixative is perfect for fixing drawings in pastel, pencil, charcoal, wax crayons, ink, gouache and watercolor. It also makes photos, prints, lithographs, proofs, lettering, and gold leaf all scratch-resistant.
 
Wild as it seems, it can fix, seal and protect just about anything, and prepare just about any surface for painting or drawing. 

Can is 300 ml