4 Seasons semi-synthetic grease


Multigrade EP Overbased Calcium Sulfonate Grease

The AF-400 super semi-synthetic grease with ANTIFRICTION TREATMENT is the best multi-purpose grease on the market. Its fast-acting, more durable and better overall formula outperforms all other multi-purpose greases.

Characteristics and Benefits

The AF-400 4 seasons all purpose grease unique formulation includes such elements as:

  • Synthetic oil base;
  • Overbased calcium sulfonate complex;

Its exclusive PROLAB formula brings the AF-400 grease to an exceptional level of performance: it reduces friction, protects against rust and corrosion, provides load resistance as well as superior mechanical stability (superior shear stability properties) and excellent moisture resistance.

The AF-400 multi-purpose semi-synthetic grease is both POLYVALENT and ECONOMICAL: it encompasses 3 NLGI grades, thus allowing for reduced grease inventories and less frequent lubricating jobs and, consequently, less energy and grease consumption.

The AF-400 multi-purpose semi-synthetic grease is PRACTICAL and SAFE to use: it has a dielectric constant, contains no contaminants harmful to health or the environment.

Types of Applications

The AF-400 is a must for every type of business, no matter what the size or the nature of the operations as well as for the workshop, car and home.

Directions for Use

Always use AF-400 multi-purpose synthetic grease in reference to the equipment manufacturer's manual.


Whenever performing a grease change, make sure to validate the compatibility of the various greases used (refer to PROLAB's grease compatibility chart).

Dielectric properties: Apply AF-400 on dry and clean parts. Any contamination will void the dielectric properties and safe use of the product.

Availables Sizes

435gr, 17 kg, 55 kg, 180 kg

Product Code

# 264 AF-400-2

# 263 AF-400-0



Characteristics astm test typical values
typical values
Appearance   Blue Blue
N.L.G.I. grade   2 0
Viscosity at 40oC D445 41,4-50,6 cSt 32,1-34,9 cSt
Viscosity at 100oC D445 7 cSt 5,7-5,9 cSt
Viscosity index D2270 93-129 112-119
Dropping point D2265 271oC 310oC
Consistency 60 X D217 285 (1/10mm) 368 (1/10mm)
Shear stability 100,000 X D217 288 (1/10mm) 374 (1/10mm)
Roll stability D1831 4% 1,55%
Oxidation resistance 1000h D942 6 psi 10 psi
4-ball wear (75oC, 40 kg, 1200 t/m, 1h) D2266 0,45 mm 0,45 mm
Load wear index D2596 >100 kgf 76,4 kgf
Weld load D2596 500 kg 500 kg
Rust preventative D1743 Pass Pass
Corrosion - copper strip D4048 n.d. 1b shiny
Salt fog (1 mil d.f.t.) B117 >300 hrs. >300 hrs.
Oil separation (100oC, 30 hrs.) FTM-321 n.d. 8,2%

Low temperature torque

- starting torque

- 1 hrs, running torque



5600 g-cm (-40oC)

230 g-cm (-40oC)


1651 g-cm (-45oC)

436 g-cm (-45oC)


0oC (32oF)

-18oC (0oF)

-25oC (-13oF)

-40oC (-40oF)

-45oC (-49oF)




53 gr/min

45,2 gr/min

28,5 gr/min



1026 gr/min


960 gr/min


3 gr/min