SikaBlock® ML25 YW

Polyurethane design board

SikaBlock® ML25 YW is a polyurethane design board for manufacture of styling and design models and mock-ups.  

  • Easily workable by hand or CNC with very low dust formation
  • Very fine dense and non-powdery surface
  • Not friable and good edges resistance
  • Good adhesion of putties
 
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PRODUCT BENEFITS

  • Easily workable by hand or CNC with very low dust formation
  • Very fine dense and non-powdery surface
  • Not friable and good edges resistance
  • Good adhesion of putties
 

Areas of Application

SikaBlock® ML25 YW is perfectly suited for manufacture of styling and design models and mock-ups.
It is also recommended for manufacture of substructure for cubing and data control models.
The product is also designed for simple laminating molds. This product is suitable for experienced professional users only. Tests under actual processing conditions and with additional materials such as coatings and release agents must be performed to proof material compatibility.  

Packaging

Dimensions [mm] Pcs./pallet

2000 x 1000 x 50

2000 x 1000 x 100

2000 x 1000 x 150

2000 x 1000 x 200

24
12
8
6

Product Details

Typical Product Data
Chemical base

Polyurethane

Color

Yellow peach

Density

0.25 kg/l

Shore D hardness (CQP023-1 / ISO 868)

25

Compressive strength (ISO 844)

3.8 MPa

Flexural strength (CQP027-2 / ISO 178)

5.4 MPa

Thermal conductivity (ASTM C-518)

0.039 W/(m·K)

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

60 x 10-6 1/K

Service temperature

-30 ─ 70 °C

CQP = Corporate Quality Procedure

Application

Application Information

Application

SikaBlock® ML25 YW 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.