Biopol TK1 Biopol TK1 BIOPOL TK 1 is a broad spectrum biocide based on water based combination of CMIT/MIT and formaldehyde. It is suitable for the preservation of a broad range of waterborne products. The balance of its active ingredients reduces the risk of contact allergic. BIOPOL TK 1 is an excellent in-can preservative for dispersion paints, dispersion plasters, polymer dispersions, glues, adhesives and sealants. The optimum dose of BIOPOL TK 1 as preservative should be determined by the means of challenge tests in our laboratories, but we can recommend a dose between 0,05 an 0,30 % depending on the application. 200 Kg Drums