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grotan® WS plus

Our Plus

  • Liquid preparation based on reaction products of paraformaldehyde with 2-hydroxypropylamine (ratio 1:1) [HPT] and Pyridine-2-thiol-1-oxide, sodium salt (NaPy)
  • Broad, balanced spectrum of effect against bacteria (incl. sulphate-reducing bacteria), yeasts and moulds
  • Good anticorrosion properties
  • Free of nitrate, nitrosing agents or organically bound chlorine
  • BPR-application*: PT 6 + PT 13


Metalworking fluids
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Active Substance
IUPAC name CAS-No. EC-No.
Pyridine-2-thiol-1-oxide, sodium salt 3811-73-2 223-296-5
alpha,alpha′,alpha″-Trimethyl-1,3,5-triazine-1,3,5(2H,4H,6H)-triethanol 25254-50-6 246-764-0
Fields of Application
Metalworking fluid concentrates [1.5 g/kg (0.15 %) in the end dilutions] 20 - 40 g/kg 2.0 - 4.0 %
Technical emulsions 1.5 g/kg 0.15 %
Water miscible metalworking fluids 1.5 g/kg 0.15 %

The optimum use level should be evaluated by means of a repeated challenge test (e.g. at schülke Technical and Microbiological department).

Use biocides safely. Always read the label and product information before use.