Mayline FS

Antifreeze agent

Inhibited NON-TOXIC propylene glycol based antifreeze for solar- and geothermal systems

Mayline FS is a high performing, non-toxic antifreeze liquid based on propylene glycol, free from nitrites, amines and phosphates, silicates and borates, combined with a protective package of inhibitors. This specifi c formulation avoids the formation of rust and corrosion on all materials present in solar- or geothermal systems such as iron, steel, copper (and its alloys), aluminium (and its alloys), synthetic materials (eg PEX pipe) and mixed materials (eg multilayer pipe) and protects too gaskets and seals.


Code | Package: 10/MYFS | 10 kg canister
20/MYFS | 20 kg canister
25/MYFS | 25 kg canister
200/MYFS | 200 kg drum
1000/MYFS | 1000 kg IBC
Important note: Restore the system with a cleaner such as Mayline SOLAR, and then thoroughly rinse the system with the clean water before inserting Mayline FS with the clean water. Mayline FS can be mixed with the protective agent Mayline K32 in mixing proportion less than 30%, as well with the self sealing liquid Mayline F, but NOT with other chemicals or substances. Dilute the product in volumetric ratio as indicat-ed in the table and mix it very well. Antifreeze mix of glycol/water with a pH value lower than 7.5, must be replaced.
Instructions for use: To restore solar- or geothermal systems, empty the circuit and load with clean water, then use a cleaner as Mayline SOLAR for removing the degraded antifreeze mix of glycol/water. For further details, see the technical data sheet of Mayline SOLAR. Calculate the content of the system for the correct amount of Mayline FS in the needed mixing proportion. Half fi ll the system with water, then add the antifreeze agent Mayline FS, and fi ll the circuit completely with water, vent it well and turn on the pumps to put the water/glycol mix into circulation. After about an hour (after 2-3 hours on large systems) check the concentration with an optical refractrometer for propylene glycols to determine the freeze protection. If the freeze protection is too low, add further antifreeze agent Mayline FS. It is recommended, to check the needed antifreeze protection and that the pH value is not lower than 7.5, to be carried out at least every 12 months to ensure a proper functioning.
Safety informations: In the event of eye contact, rinse eyes thoroughly with much water and consult a doctor. In the event of skin contact, rinse well with water. Wear gloves and protective eyewear. Use water to immediately remove the product from objects such as tiles, flooring, wash basins, etc. Keep out of reach of children!
Mixing proportions: Refer to the material safety data sheet (MSDS)
Mixing proportions: amount of antifreeze (% vol.) | antifreeze protection at
12% = -3°C
18% = -6°C
25% = -10°C
32% = -15°C
40% = -20°C
47% = -25°C
Transport: The product is not hazardous for transport. The indications are provided based on actual experience. Technical changes are possible.
Disposal: For information concerning waste disposal/effluent, please consult the corresponding safety data sheet.
Shelf life: Shelf life 5 years (from date of manufacture)

Technical Datasheet