Brand: CAIG. MPN: RSF-R39-8G. Manufacturer Part Number: RSF-R39-8G CAIG s no clean rosin flux prepares printed circuit boards for repair and rework. The rosin will not harm the circuit board even if it s left on after soldering. Key Features: Smooth and tacky amber paste stays in place Syringe dispenser enables you to reach small areas with just the right amount of flux Won t hurt circuit boards if not cleaned off after soldering No refrigeration necessary Made in USA CAIG RSF-R39-8G No Clean Formula Soldering Flux Syringe 8g CAIG s no clean flux syringe is perfect for preparing circuit board surfaces for part replacement. The Syringe dispenser with 8 grams of no clean flux prepares hard to reach areas for soldering. Once you re done replacing the part you don t have to go back and clean off the residue left behind by normal rosin flux. Product Details BrandCAIG LaboratoriesModelRSF-R39-8GPart Number341-218UPC697429014109Unit of MeasureEachWeight0.1.