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SikaBlock® M980

Polyurethane tooling board

SikaBlock® M980 is a slightly filled blue polyurethane tooling board with very high abrasion resistance for foundry patterns, match plates and core boxes.  

  • Very low coefficient of thermal expansion
  • Easy to machine
  • Very high abrasion resistance
  • Very high compressive and flexural strength as well as edge stability
  • Good swelling resistance
 
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PRODUCT BENEFITS

  • Very low coefficient of thermal expansion
  • Easy to machine
  • Very high abrasion resistance
  • Very high compressive and flexural strength as well as edge stability
  • Good swelling resistance
 

Areas of Application

SikaBlock® M980 is well suited for foundry patterns, match plates and core boxes for cold box process.
It is also designed for wide range of molds, tools and gauges where high dimensional stability and good mechanical properties are required.
This product is suitable for experienced professional users only. The boards must be tested for the specific application in each case, e.g. type of sand molding process, binder, amine catalyst, etc.  

Packaging

Dimensions [mm]

Pcs./ pallet

1000 x 495 x 30

1000 x 495 x 50

1000 x 495 x 75

1000 x 495 x 100

30

36

24

18

Product Details

Typical Product Data
Chemical base

Polyurethane

Color

Blue

Density

1.35 kg/l

Shore D hardness (CQP023-1 / ISO 868)

86

Compressive strength (CQP028-5 / ISO 604)

120 MPa

Flexural strength (CQP027-2 / ISO 178)

145 MPa

Flexural modulus (CQP027-2 / ISO 178)

4000 MPa

Impact resistance (CQP038-2 / ISO 179)

35 kJ/m2

Heat deflection temperature (CQP030-1 / ISO 75B)

85 °C

Linear coefficient of thermal expansion (CQP053-1 / ISO 11359)

60 x 10-6 1/K

CQP = Corporate Quality Procedure

Application

Application Information

Application

SikaBlock® M980 can be easily machined by milling, drilling, sawing or modified manually. It is recommended to use high performance tools to machine these boards.
For milling parameters check information from cutting tool manufacturers or get the General Guideline “Milling parameters for SikaBlock®” for more general information.
 

STORAGE CONDITIONS

The board needs to be stored flat over the entire surface in dry conditions.
Many models and tools are made of bonded boards, either with identical or other materials. Storage at low and elevated temperature can lead to high stresses due to the different expansion coefficients. To prevent this, it is necessary to store the models and tools at a temperature range between 15 °C and 30 °C.