ALCHEMIX VC 3362
VC 3362
ALCHEMIX VC 3362 is a high temperature, polyurethane vacuum casting resin
designed to simulate thermoplastics such ABS. The system is specifically
designed for use in gravity vacuum casting machines.
Special Features
– High heat resistance
– Extremely rigid
– Very strong on demould
Properties
Property | Units | VC 3362A | VC 3362B | Mix | Material | – | Polyol blend | Isocyanate | Polyurethane |
---|---|---|---|---|
Appearance | – | Straw
coloured liquid | Brown Liquid | Brown liquid |
Viscosity
(25oC) | mPa.s | 1000 – 1500 | 50 – 90 | 280 – 380 |
Density
(25°C)
| g/cm3 | 1.05 – 1.10 | 1.20 – 1.25 | 1.12 – 1.17 |
Pot life
(200g, 25°C) | Minutes &
Seconds | – | – | 3 min 30 –
4 min 30 |
Pot life
(200g, 40°C) | Minutes &
Seconds | – | – | 2 – 3 min |
Demould
Time (70°C) | Minutes | – | – | 45 – 60
(depending on
thickness) |
Maximum
Casting
Thickness | mm | – | – | 10 |
Properties | Standard | Units | Result (Full Post Cure) | Hardness
25°C
120°C
125°C
130°C | BS 2782: Part 3:
Method 365B | Shore D | 90
65
57
50 |
---|---|---|---|
Linear Shrinkage | 500 x 50 x10 mm | % | 0.20 – 0.40 |
Tensile Strength | BS 2782: Part 3:
Method 320B | MPa | 70 – 75 |
Elongation at break | BS 2782: Part 3:
Method 320B | % | 10 – 12 |
Flexural Modulus | BS 2782: Part 3:
Method 335A | MPa | 2500 – 2800 |
Heat Distortion
Temperature
(HDT)
| TMA | °C | 95 – 100 |