Soft brown petrolatum primer containing moisture displacing corrosion inhibiting compounds Application by stiff brush or gloved hand at normal ambient temperature. It does not dry, harden or crack. 2.5kg (5.5lbs) each pail Apply lightly on items being covered by Densyl Tape for ultimate corrosion prevention and protection. Denso Paste is primarily used as a primer prior to the application of Denso petrolatum tapes. Denso Paste will penetrate existing rust, displace moisture, pacify the surface and aid the adhesion of petrolatum tapes and mastics. It is also used as a temporary coating for exposed metal.