DeoxIT SHIELD SN5S-6N, 5% solution, Spray CAIG, NON-FLAMABLE. Recommended after DeoxIT D-Series contact cleaner for best protection and new metal surfaces, usually in the manufacturing process. It is also great where high degrees of pollution (sulfur, salts, acids, etc.) are present. DeoxIT Shield S-Series should be applied to a clean surface - after using DeoxIT D-Series or other cleaning method. For reference, DeoxIT Shield has 0% cleaning action. (Pre-clean with DeoxIT D-Series Contact Cleaner).