Regular Flux PasteAll weather super detergent action cleans as it solders. Non-acid, non-toxic, lead free. Contains no zinc chloride. Use with all common soft solders including: tin-silver, 96/4, 94/6, 95/5, 50/50, 40/60 and 60/40; 61 for use with potable water. Water soluble for faster flushing from pipe lines. Applicable Materials: Copper, Brass, Galvanized Iron, Lead, Zinc, Tin, Silver, Nickel, Steel, Mild Steel, Terne Plate, Malleable Iron; Capacity Weight: 2 oz; Color: Amber; Flash Point: 400.00 °F; Packing Type: Jar; Physical Form: Paste or Gel; Quantity: 48 per case; Specific Gravity: 1.1; Usage: Soldering; Weight: 0.21 lb.