Instructions / Assembly

Fernox Leak Sealer F4
Express
Size: 1 Pint
Code: 57883
26 GAL
10x
www.fernox.com
LEAK SEALER F4 EXPRESS
Physical Properties
Product Uses
 Quick and convenient – doses in 30 seconds
 Simple to use with no mess
 Added via a radiator adapter or filling loop supplied
 Non-toxic, environmentally friendly formulation
 100% recyclable can
 Seeks out and seals most weeps and leaks
 Saves time and money on draining down and repairing
 Does not cause blockages of pumps, air vents, etc
 Compatible with all Fernox Protectors
 One 9 fl oz canister treats 26 gallons of water
Fernox Leak Sealer F4 is a Polymer Emulsion.
Colour: White
Form: Viscous liquid
Odour: Faint
PH: 5.0 – 7.0
SG: 1.0 @ 68°F
Fernox Leak Sealer F4 is used throughout domestic heating systems for sealing small inaccessible
leaks. Leak Sealer F4 works best in warm/hot circulating water and once evenly dispersed will usually
be effective within 1 - 24 hours. The sealing efficiency of Leak Sealer F4 has been intentionally
limited to prevent blockage of safety devices, pumps, etc.
For long term protection against corrosion and limescale we recommend system are cleaned using
Fernox Cleaner F3 and inhibited with Fernox Protector F1.
V.001
Application
One aerosol (9 fl oz) will protect an average sized system (26 gallons or up to ten single radiators) and is added via a radiator or filling loop.
Fernox Leak Sealer F4 Express can be dispensed directly into a radiator air vent or system filling loop using the appropriate special adapter
supplied with the product. The whole process takes less than two minutes. In single feed indirect cylinder, e.g. ‘Primatic’ or similar, potable
water chemicals must be used.
Packaging, Handling and Storage
Fernox Leak Sealer F4 Express is supplied in 9 fl oz aerosol cans with a universal applicator set. Fernox Leak Sealer F4 Express is classified
as non-hazardous, but as with all chemicals: Keep out of reach of children. Do not mix with other chemicals. Do not take internally. In case of
contact with eyes or skin, rinse immediately with plenty of water.
Fernox Leak Sealer
F4 Express
Size: 9 fl oz
Code: 59903
26 GAL
10x