Chem Star All-Purpose Aluminum Brazing Powder Flux, 8 oz.
 Product Details:
  - Specifically-forumated flux for controlled atmospheric brazing
  - Water-soluble residue
  - Aluminum-based flux with zinc chloride
  - Has a Working Temperature Range of 915-1115°F (490.5-601.6°C)
  - Works on furnace and automatic flame brazing
  - Usable with 4043, 4047 (718), 4145, or 1100 brazing filler alloy
  - Satisfies AMS 3412D specification
  - Sold as 1/2 LB containers