Metalworking Fluid STRUB Stabillo Cut (Future Resistant Technology)

Why STRUB Metalworking Fluids STRUB Stabillo Cut - Future Resistant Technology (FRT) coolants- are based on long lasting research and development as well as considerable experience in this field. The unique STRUB Future Resistant Technology series concept provide long term stability, longer tool life and one of these products is free of biocides, thanks to the unique combination of ingredients. Why you need STRUB water-miscible Metalworking Fluids? Higher cutting speed leads to lower production time = Higher Productivity Enhanced tool life leads to fewer tool changes = Lower tooling costs Better surface quality leads to less post-processing = Higher Performance Cooling Flushing Lubricating Strub & Co. AG

Different Generations of water-miscible MWF 1 2 3 pH: 9.1-9.4 pH: 8.4-9.1 pH: 9.1-9.3 4 Future Resistent Technology Biostatic; anorganic derivate (fungicide) Biobalanced; No Biocide addition Biostable; bactericide, fugicide Bacteria growth Soap Water: Vor dem 2ten Weltkrieg, Fettsäure und Lauge = Seife Biostable: Alte Technologie nach 2. Weltkrieg, bakterizide und fungizide (krebseregend toxisch), Problematik in Keimzahl von 10 hoch 6 darüber wird biozide aufgebraucht, Nachdosierung öfters oder Emulsion hinüber bei Stillstand, Tröpfchengrösse verändert sich und wird gross, Rückstände in Zerspanungszelle and der Scheibe gut ersichtlich, Waschkraft und Penetrationseigenschaft geringer und grösser Austrag und stärkere Nachdosierung. Nicht günstiger, unkontrollierte Partikelgrösse – keine optimale Schmierung kürzere Werkzeugstandzeiten, attraktiv im Preis nicht Gesamtpreis Biostatic: Kontrollierte Partikelgrösse (Sehr schwierig von Bakterien gefressen werden, gemäss chemische Struktur) und keine Bakterizide, kleine Tröpfchengrösse wenig Ausschlepverlust, sicherere gezielte Schmierung, weniger Nachdosierung, viel säubere Zerspanungszelle und gutes anhaltendes Spülvermögen, gute Penetrationseigenschaften. Speziell sehr gut geeignet in Kombination in Guss da Abtropft und nicht aufgesogen wird (Partikel zu klein) – kann trocken filtiriert werden kein Nährboden für Bakterien. Nicht anfällig gegenüber Bio vorallem bei Firmen die nicht hightech clean arbeiten – gute Preis - Leistung Biobalanced: Keine biocide, gute Bakterien bereits im Produkt eigen resistente Bioflora (Natur balaciert), Tröpfchengrösse nicht quagulierend, PH unabhängig gegenüber Bakterienwachstum, daher tieferer PH Wert fahren – Hautfreundlich Version Amin Frei – noch Hautfreundlich welche auf Amin reagieren Strub & Co. AG

Statement New Technology Conventional MWF FR Technology high pH-value pH-buffer capacity good adjustment of a complex formulation with special additives and extremely long alkali reserve Conclusion : Very stable pH-value and high alkali reserve ensures longer life Strub & Co. AG

Industry for the Technology Aircraft Electronics Automotive Medical Technology Strub & Co. AG

FRT Products-Series No free boric acid Free of formaldehyde and formaldehyde derivates one product of the series is free of biocides Strub & Co. AG

Environmental Regulations Human, Safety and Environmental Regulations Environmental Requirements Not hazardous for water Not toxic Not hazardous for transport and storage Work Safety Requirements Long life-time No misting Technical Requirements Sodium nitrate over 40 ppm and 20g Nitrite (can react to nitrosamines which are cancerogen used as weapon in 2nd world war Lubrication Corrosion protection Foam control Easy Maintenance Strub & Co. AG

FRT Product Portfolio Especially for Aluminium, Yellow Metal: STRUB Stabillo Cut FRT- Al STRUB Stabillo Cut FRT Al -ES (extremely stable) For Cast Iron and Steel: STRUB Stabillo Cut FRT- B STRUB Stabillo Cut FRT- BF (without biocide) Strub & Co. AG

Basic Data Unit STRUB Stabillo Cut FRT-Al STRUB Stabillo Cut FRT-Al-ES STRUB Stabillo Cut FRT-B STRUB Stabillo Cut FRT-BF Colour concentrate   visual amber brownish Density 20°C [g/cm3] 0.998 0.974 0.988 0.987 Mineral oil content [%] 34 40 41 Refractometer factor x  1.13 1.09 1.14 Concentration refractometer [°Brix] 4.6 4.9 4.4 Aspect emulsion 5% in tap water opaque - milky milky pH 5% in tap water 9.1 9.3 9.2 Alkalinity [ml] 7.4 7.2 7.3 Strub & Co. AG

Foaming Behavior TEST METHOD A 1500 ml mixing cylinder was filled with 400 ml 6 % emulsion, prepared with tap water (19 °dH = 339 ppm CaCO3). Then pressurised air (0.6 bar) was applied at the bottom of the cylinder. Every 10 s the foam level was determined. After a total of 60 s the pressurised air was turned off and the velocity of the foam break was measured. Strub & Co. AG

Corrosion TEST METHOD Aluminium staining: In an emulsion of 10 %, different aluminium alloys (Al 5083, Al 6082, Al 7075 and Fibral) were tested. Half of the piece was in the emulsion. After 72h the alloys were taken out and evaluated. Cast iron: A 4 % emulsion was put between two circular cast iron GG25 plates (Ø = 50 mm) and evaluated after 72h; 2 g cast iron GG25 chips were put onto a circular cast iron GG25 plate (Ø = 50 mm), 2 ml emulsion (4 %) was applied and evaluated after 72h; 2 g cast iron GG25 chips were put onto a filter paper, 2 ml emulsion (4 %) was applied and evaluated after 72h (DIN 51360 / T2) Copper: A sanded and smoothed copper strip was put in a test tube with a 10 % emulsion and put in a heating cabinet for 3 h at 40 °C. Strub & Co. AG

Tests STRUB Stabillo Cut FRT-Al STRUB Stabillo Cut FRT-Al-ES STRUB Stabillo Cut FRT-B STRUB Stabillo Cut FRT-BF Corrosion test DIN 51 360T2 - 4%   no corrosion Corrosion test rondel / chips GG25 - 4% Corrosion test sandwich 2 rondel GG 25 - 4% slight corrosion Staining test Alu 6062 - 10% no staining slight staining --- Staining test Alu 7075 - 10% Staining test Alu 5083 - 10% Staining test Fibral – EN AW-5083 special - 10% E- Cooper - 3h 40°C - 10% 1b Strub & Co. AG

STRUB Stabillo Cut FRT- Al STRUB Stabillo Cut FRT Al- ES Cooling lubricant stress test Strub- Method STRUB Stabillo Cut FRT- Al Unit Start date 20.04.2017 initial value 1 measure 25.04.2017 before inoculation 2 measure 02.05.2017 before inoculation 3 measure 08.05.2017 before inoculation 4 measure 15.05.2017 before inoculation Concentration refractometer °Brix 5.2 6.1 6.4 6.8 6.2 pH electrometic   9.11 8.99 9.01 9.02 9.03 Conductivity [mS/cm] 2.12 2.55 2.69 2.74 Alkalinity [ml] 8.71 9.7 10.22 10.39 10.05 Contamination 2ml 25.04.2017 B: 10^6 F+Y : < 10 01.05.2017 B: 10^6 F+Y : < 10 08.05.2017 B: 10^6 F+Y : < 10 15.05.2017 B: 10^6 F+Y : < 10 Bacteria [KBE / ml] < 10 Funghi / Yeast Note Coagulation STRUB Stabillo Cut FRT Al- ES Start date 20.04.2017 initial value 5.6 7.1 8.0 7.4 6.6 9.41 9.14 9.13 9.15 1.91 2.56 2.85 2.77 2.48 8.35 9.9 11.29 10.75 9.29 Inoculation Bacterias TEST METHOD 800 ml of an emulsion (6%) was filled in a 1000 ml beaker and oxygenated by releasing air at the bottom of the beaker through a pipette connected to a pump. Once a week 2 ml contaminated emulsion was added to test the system. Four days after contamination, microbial parameters were determined and seven days after contamination concentration, pH, conductivity and alkalinity were measured. Also, the concentration was adjusted to 6 % before the next inoculation. Strub & Co. AG

STRUB Stabillo Cut FRT- B STRUB Stabillo Cut FRT- BF Cooling lubricant stress test Strub- Method STRUB Stabillo Cut FRT- B Unit Start date 20.04.2017 initial value 1 measure 25.04.2017 before inoculation 2 measure 02.05.2017 before inoculation 3 measure 08.05.2017 before inoculation 4 measure 15.05.2017 before inoculation Concentration refract. °Brix 5.4 6.8 7.2 6.0 pH electrometic   9.23 9.06 9.08 9.09 9.07 Conductivity [mS/cm] 2.13 2.69 2.82 3 2.51 Alkalinity [ml] 9.19 10.49 10.88 12 9.86 Innoculation 2ml 25.04.2017 B: 10^6 F+Y : < 10 01.05.2017 B: 10^6 F+Y : < 10 08.05.2017 B: 10^6 F+Y : < 10 15.05.2017 B: 10^6 F+Y : < 10 Bacteria [KBE / ml] < 10 Funghi / Yeast Note Precipitation STRUB Stabillo Cut FRT- BF Start date 20.04.2017 initial value 6.6 7.0 7.6 6.2 9.27 9.1 2.04 2.63 2.9 3.12 2.55 8.77 10.15 11.28 12.4 10.22 10^1 10^2 TEST METHOD 800 ml of an emulsion (6%) was filled in a 1000 ml beaker and oxygenated by releasing air at the bottom of the beaker through a pipette connected to a pump. Once a week 2 ml contaminated emulsion was added to test the system. Four days after contamination, microbial parameters were determined and seven days after contamination concentration, pH, conductivity and alkalinity were measured. Also, the concentration was adjusted to 6 % before the next innoculation. Strub & Co. AG

Demulsification properties TEST METHOD 90 ml emulsion (6%) and 10 ml slide way oil STRUB Vulcoway 68+ were strongly mixed by inverting in a graduated cylinder for 1 min. After certain time intervals, the oil release was determi-ned. Strub & Co. AG

Demulsification properties TEST METHOD 90 ml emulsion (6%) and 10 ml slide way oil STRUB Vulcoway 68+ were strongly mixed by inverting in a graduated cylinder for 1 min. After certain time intervals, the oil release was determi-ned. Strub & Co. AG

Hard water test TEST METHOD 6% emulsion made up with demineralised water (1°dH), hardened up to 20, 30, 40, 50, 60, 70°dH with STRUB Additive CA 25. Kept for 1 week and observed for instability, creaming, separation, etc.. Strub & Co. AG

Thank you Headquarters: STRUB + Co. AG Swiss Tribology Mühlemattstrasse 5 CH-6260 Reiden Phone +41 62 785 22 22 Fax +41 62 785 22 33 strub@strub-lube.ch www.strub-lube.ch Strub & Co. AG