SANMODUR TW-E is tooling material (chemical board) for models & molds in various processes. It has lower rates of moisture expansion this is less than one-quarter that of a conventional product. Improving deflection temperature to 95°C maintaining other performance of conventional product.

Functions: Core Material

Core Type: Polyurethane Foam

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Composite Materials Functions

Features & Benefits

Features and Major Physical Properties of Product
  • *1 - The board was cut using an NC machine. The surface roughness of the cut section was measured through the use of a non-contact three-dimensional surface roughness tester. The surface roughness is the average absolute value of irregularities; and the lower the value, the smoother the surface.
  • *2 - The milling resistance during cutting through the use of an NC machine driven with 4-component dynamometer under the following conditions was measured: Edge: through-away tip of carbide tool with a diameter of 16 mm, Revolution rate: 5,000 rpm, Feed speed: 2,000 mm/min, Cut depth: 3 mm
  • *3 - The board was cut continuously for 10 m using an NC machine under the following conditions: Edge: normal cutting edge of high-speed steel with a diameter of 10 mm, Revolution rate: 10,000 rpm, Feed speed: 100 mm/min, Pick: 1 mm, Cut depth: 3 mm The degree of abrasion of the cutter edge after cutting was visually evaluated with a stereomicroscope (magnification: 50).
  • *4 - A test piece of 50 (w) × 50 (d) × 120 (h) mm measured height after kept for 12 hours at 25 ℃ in air, and soaked for a few days in water at 50 ℃.Then kept for 12 hours in water at 25 ℃, and mesured height. Rate of water expansion was calculated using its two heights.

SANAM Corporation SANMODUR TW-E Features and Major Physical Properties of Product 

                                    Rate of Water Expansion at 50℃(%)

Features
  • Lower rates of moisture expansion, This is less than one-quarter that of a conventional product.
  • Improving deflection temperature to 95°C
  • Maintaining other performance of conventional product

Applications & Uses

Plastics & Elastomers End Uses

Properties

Physical Form
Physical Properties
ValueUnitsTest Method / Conditions
Abrasion of Cutter Edge1mm
Hardness64Shore D
Coefficient of Linear Thermal Expansion4710^-6/°CTMA
Deflection Temperature Under Load95°C
Density (at 25°C)750Kg/m3ASTM D792
Flexural Strength25MPaJIS K 6911
Impact Strength5.7kJ/m2
Milling Resistance80N
Rate of Water Expansion (50℃) %0.06%
Surface Roughness(Ra)4μm