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SikaBiresin® F230

Filled fastcast resin with smooth surface easy to sand

SikaBiresin® F230 is a filled fast curing 2-component polyurethane system with smooth surface easy to sand.  

  • Very good and smooth surface aspect
  • Low shrinkage
  • Easily workable
  • Restoring gloss with polishing
 
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PRODUCT BENEFITS

  • Very good and smooth surface aspect
  • Low shrinkage
  • Easily workable
  • Restoring gloss with polishing
 

Areas of Application

SikaBiresin® F230 is designed for manufacturing of tools for small to medium series, thermoforming tools, checking and positioning fixtures.
The Product is also well suited for decorative applications when plaster aspect is needed (e.g. furniture ornaments, statues, bas reliefs).
SikaBiresin® F230 is also recommended for parts and tools with a glossy aspect.
This product is suitable for experienced professional users only.  

Packaging

     

SikaBiresin® F230 (A)

Box with tins

6 x 1 kg

Pail5 kg

SikaBiresin® F230 (B)

Box with bottles

6 x 0.2 kg

1 kg

 

Product Details

Typical Product Data
Properties

SikaBiresin® F230 (A)

SikaBiresin® F230 (B)

Chemical base

Polyol, filled

MDI-based isocyanate, unfilled

Color

 

mixed

White

Translucent-yellow

White

Density

  

cured

1.64 kg/l

1.21 kg/l

1.58 kg/l A

Mixing ratio

by weight

100 : 20

Viscosity (CQP029-4)

 

mixed

2900 mPa·s

40 mPa·s

900 mPa·s

Pot life (CQP021-4)

240 g

5 minutes

Demolding time

10 mm thickness

30 minutes

Maximum casting thickness

50 mm

Shore D hardness (CQP023-1 / ISO 868)

80 A

Tensile strength (CQP036-2 / ISO 527)

30 MPa A

Compressive strength (CQP028-5 / ISO 604)

63 MPa A

Flexural strength (CQP027-2 / ISO 178)

47 MPa A

Flexural modulus (CQP027-2 / ISO 178)

3200 MPa A

Linear shrinkage (CQP014-5)

1000 x 50 x 10 mm

2 mm/m A

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

60 °C A

107 °C B

Shelf life

9 months

6 months

CQP = Corporate Quality Procedure

A) curing condition: 23 °C for 7 days

B) post curing: 3 hours at 80 °C

Application

Application Information

Surface preparation

The material, processing and mold or master-model temperature shall be between 18 °C and 25 °C.
Make sure the mold or master model is clean, dry, dust and grease free.
If mold or master-model surface is porous, it must be sealed prior applying the release agent.
It is recommended to use wax-based release agents. For further information regarding Sika release agent consult the corresponding Product Data Sheet.

Application

Immediately after mixing pour the Product into the mold starting at the deepest point.
Demolding time may vary depending on casted thickness and room temperature.
Further post curing of the demolded part can improve the final mechanical properties.
Depending on the geometry and weight of the part, it is recommended to use a conformer while post curing.

STORAGE CONDITIONS

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

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