JosS Product Catalogue

JosS d.o.o. is a industrial supplier specializing in advanced metalworking solutions since 1991, offering a wide range of metalworking fluids, lubricants, welding sprays, corrosion inhibitors and accessories for machine shops and heavy industry. Our key products include water-miscible and high-performance cutting oils, silicone-free anti‑spatter welding sprays, and long‑lasting corrosion protection oils, all designed to improve machining efficiency, equipment lifespan and operator safety .


Fosia Air Pump

Old product name: Aeration Pump

Aeration pump for cooling lubricants – prevents anaerobic conditions, reduces bacterial contamination, and significantly extends coolant service life.

Fosia Test H20

Old product name: Hand refractometer Standard 20

Manual hand refractometer for quick and accurate determination of coolant concentration in water-soluble lubricants – measuring range 0–20%, accuracy ±0.2%.

Fosia Skim B.M

Old product name: Belt skimmer

Compact belt skimmer with magnetic mount and timer function for efficient removal of floating tramp oils in coolant systems, with a throughput of up to 4 liters per hour.

Nitrate – Test sticks

Fast colorimetric test strips for measuring nitrate levels (10–500 mg/l NO₃⁻) in water or cooling lubricants—ideal for industrial and environmental use.

Total – Hardness – Test sticks

Quick colorimetric test strips for measuring total water hardness (5–25+ °dH), perfect for coolant and water quality control.

Nitrite – Test sticks

Quick and easy nitrite test strips for checking cooling lubricants with a colorimetric method.

PH – Test Sticks

Non-bleeding pH indicator strips (pH 6.5–10.0) for accurate, contamination-free testing, calibrated with certified buffer solutions.

Easy Cult Combi – Dip-Slide

Dip-slide test stick for reliable detection of bacteria, fungi, and yeasts in industrial liquids—easy to use and delivers dependable results.

Grotanol FF 1 N

Formaldehyde-free system cleaner for circulation systems and production equipment, effective at 1–3% dosage with a 6–24 hour contact time, suitable for steel, non-ferrous, and aluminum alloys.