Godhand introduces paint brush maintenance glue to restore original performance of brush and help maintain the shape of the brush. How to use: Prepare hot water of 90 degrees celsius (194 fahrenheit) into a container of about 15ml (1/2 US Fluid ounce). Dissolve approximately 0.3g (.1 oz) maintenance glue powder into the water. Soak the entire brush tip into the liquid and shape the brush tip by stroking the brush tip against the wall of the container. Once reach desired shape, let dry. Depending on the state of the brush, you may not be able to restore the tip of the brush.