TENZI Derast GEL 10L

A ready-to-use acid-based gel for the removal of rust, concrete, limescale deposits, boiler scale. Can be use safely on acid resistant surfaces. Contains hydrochloric acid. Not suitable for use on enamel surfaces. Do not allow solution to dry on surface. Recommended for spot application.

Method of use :

Use undiluted. Apply to the soiled surface, allow 2-5 minutes contact time. Rinse well with strong stream of water.  Reapply if necessary