SikaBiresin® F512 CN

Highly filled PU casting system for potting balancing boxes in wind turbine blades

SikaBiresin® F512 CN is the base part of a two components polyurethane potting compound used with SikaBiresin® KD100 CN hardener.  

  • Good flowability
  • Low shrinkage
  • Low exothermic reaction
  • High density to maximize load capacity of balancing boxes
 
Contact

Product Details

Typical Product Data
Properties

Component A

SikaBiresin® F512 CN

Component B

SikaBiresin® KD100 CN

Chemical base

Polyol

Isocyanate

Density

 

mixed

2.48 kg/l

1.23 kg/l

2.35 kg/l A

Mixing ratio

A : B by weight

A : B by volume

100 : 7.8

100 : 15.5

Viscosity (CQP029-4)

 

mixed

21 000 mPa·s

200 mPa·s

11 000 mPa·s

Pot life (CQP021-3 / Gel Timer TECAM)

20 minutes B

Shore D hardness (CQP023-1 / ISO 868)

55

Tensile strength (CQP036-2 / ISO 527)

5 MPa

Elongation at break (CQP036-2 / ISO 527)

30 %

Glass transition temperature TMA (CQP053-1 / ISO 11359)

-30 °C

Shelf life

9 months C

CQP = Corporate Quality Procedure

A) cured product at 23 °C

B) at 23 °C, 100 g

C) stored (unopened) in a dry place at 15 – 25 °C

Application

Application Information

STORAGE CONDITIONS

Both components must be stored at temperature between 15 °C and 25 °C in original unopened containers.

SikaBiresin® F512 CN minimum shelf life is 9 months under room conditions (15 – 25 °C), when stored in original unopened containners.

 

 
After prolonged storage at low temperature, crystallisation of components may occur.
This is easily removed by warming up for a sufficient time to a maximum of 60 °C.
Allow to cool to room temperature before use.
Containers must be closed tightly immediately after use to prevent moisture ingress.
The residual material needs to be used up as soon as possible.