Mayline FSR

Antifreeze agent

Inhibited high performing diethylene glycol based antifreeze agent

Mayline FSR is a high performing antifreeze liquid based on diethylene glycol, combined with a protective package of inhibitors. This specifi c formulation avoids the formation of rust and corrosion on all materials present in a system 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. Mayline FSR is suitable for protecting all types of solar thermal systems with vacuum collectors, designed to use with diethylene glycol.


Code | Package: 10/MYFSR | 10 kg canister
20/MYFSR | 20 kg canister
25/MYFSR | 25 kg canister
200/MYFSR | 200 kg drum
1000/MYFSR | 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 FSR with the clean water. Mayline FSR can be mixed with the protective agent Mayline K32 for mixing proportion less than 30%, as well with Mayline self-sealing liquid Mayline F, but NOT with other chemicals or substances. Dilute the product in volumetric ratio as indicated 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: For systems to restore, empty the circuit and load with the 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 FSR in the needed mixing proportion. Half fi ll the system with water, then add the antifreeze agent Mayline FSR, 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 refractometer for diethylene glycols to determine the freeze protection. If the freeze protection is too low, add further antifreeze agent Mayline FSR. 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 well with water andconsult a Physician. In the event of skin contact, rinsewell with water. Wear protective gloves and eyewear.Use water to immediately remove the product fromobjects such as tiles, flooring, wash basins, etc. Keepout of the 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