Cemfair PF
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Cempatch S
 

Cemfair
FD

POLYMER MODIFIED CEMENTITIOUS FAIRING COAT
 
Advantages:

  • Easy to apply, single component which requires only addition of water

  • Excellent adhesion to concrete, no independent primer or curing is required

  • Reduces any potential cracking

  • Suitable for internal and external applications

  • Compatible with other types of protective coatings

Description:

Cemfair FD is a one component acrylic polymer modified powder. When mixed with water Cemfair FD produces a highly consistent, smooth, fine, trowellable mortar.


Usage

Cemfair FD is a shrinkage controlled polymer modified cementitious repair mortar which reduces any potential cracking.

For fair face concrete repair.

As a thin layer render.

As a skim coat for pin holes and minor honeycombed concrete repair.

As pore sealer and leveling mortar.

To produce a uniform surface for subsequent paint finish.


Materials Supplied

20kg polythene-lined paper sacks 

Coverage

Approximately 14 liters/ 20 kg bag.

Cemfair FD can be applied by single application from feather edge to 3 mm thickness. Higher thicknesses can be achieved by applying multiple layers.

Storage/ Shelf Life

Cemfair FD  has a shelf life of 12 months from date of manufacture if stored at temperatures between 2°C and 35°C.

Standard

  • EN 1504-3

Technical Information

Compressive strength of repair mortar
EN 12190:2001
≥ 15 N/mm2, 28 days
Bond strength by pull-off
EN 1542:2002
≥ 0.8 N/mm2,
28 days
Bond strength by pull-off
EN 1542:2002
≥ 0.8 N/mm2 ,
after 56 days shrinkage
Bond strength by pull-off
EN 1542:2002
≥ 0.8 N/mm2 ,
after 56 days expansion
Modulus of elasticity in compression
EN 13412:2006
> 10 000 N/mm2
Fresh wet density1.85 ± 0.05 g/cm3
Working life60 min
Setting time2 – 3 hr
Coefficient of thermal expansion6.5 to 12 × 10 ⁻⁶ m/1˚C
ColorGrey
VOC
< 10 g/ l
The technical data are specified at 22 ° C.

Application Information


SUBSTRATE PREPARATION
All surfaces should be clean, sound and uncontaminated prior to the application of Cemfair FD. The prepared area should be cleaned thoroughly by brush and/or compressed air. The prepared area should be soaked with water immediately prior to the application of Cemfair FD.

MIXING
To ensure proper mixing, a mechanically powered mixer or drill fitted with suitable paddle should be used. However for small quantities, Cemfair FD can be hand mixed using proper tools and bucket. For one full bag, 6.0 - 6.8 litre of fresh water should be added to a clean container.  
The powder is then added slowly to the water while mixing continuously with low speed mixer/drill (400 - 600 rpm). Mixing time should be continued for 3 minutes until uniform consistency is obtained.
To enhance the scratch resistance of Cemfair FD, an addition of Cempatch SBR or Cempatch SBR100 is advisable. 50% of the total mixing water shall be replaced by Cempatch SBR range

APPLICATION
Cemfair FD can be applied by steel trowel. The mixed mortar can be applied to the prepared substrates at up to 3 mm thicknesses. The applied mortar should be allowed to stiffen before trowelling to a smoother finish.

CURING
Curing is not required for  Cemfair FD in normal ambient conditions. In the case of harsh weather conditions, such as high wind and temperatures, it is recommended to cure with Setseal A or wet hessian with polyethelene.




Download file

Technical Data Sheet
TDS Cemfair FD
Safety Data Sheet
Cemfair FD


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