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Help CenterPolyurethane Casting Resin Yc7315ab Ordorless Transparent
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YC7315
FAST CAST POLYURETHANE RESIN
Fast-cast polyurethane system
100:100 mixing ratio by weight. transparent
DESCRIPTION
YC7315 is two component polyurethane system .Performance is similar to thermoplastic, poured in silicone rubber mold, making sample or prototype, transparent material.
PROPERTIES
-- Very rapid demould times
-- Ultra low viscosity
-- Good thermal resistance
-- Simulates Polypropylene
PHYSICAL PROPERTIES
A |
B |
MIXTURE |
|
Material |
Polyol |
Isocyanate |
|
Appearance |
transparency liquid |
transparency liquid |
Transparent |
Density @ 25°C |
1.03 g/ml |
1.17g/ml |
1.08 g/ml |
Viscosity @ 25°C |
65mPa.s |
97 mPa.s |
|
Pot life (200 g) @ |
2minutes |
||
20°C |
|||
Demould time |
20-25 minutes |
||
20 g, 3mm @ 25°C |
MECHANICAL PROPERTIES AT 23°C (1)
Flexural modulus of elasticity |
ISO 178 : 2001 |
MPa |
700 |
Flexural strength |
MPa |
24 |
|
Tensile strength |
ISO 527-2 : 1993 |
MPa |
31 |
Elongation at break |
% |
30 |
|
Hardness |
ISO 868 : 2003 |
Shore D |
75 |
Note: 1. When the ambient temperature is high, the reaction time of AB mixing will be shortened, component A can be put in the refrigerator for use, and component B can be stored at room temperature (component B freezing time will affect the transparency.）
MANUAL PROCESSING CONDITIONS
-- Ensure that the mould is clean and dry. For flexible moulds, use silicone rubber.
-- Shake the Part A container thoroughly in order to homogenise the resin. For best results, make sure the two components are at least 20°C before mixing.
-- Weight both parts 1:1
-- When using unfilled, add the correct amount of Part B to the Part A and stir for 15 seconds. Pour carefully in one place into the mould in order to avoid air inclusion.
-- Vacuum casting into silicone moulds. （vacuum 30seconds）
-- Put the silicone moulds into pressure tank（maintain pressure 10minutes）
-- The casting can generally be demoulded in 20-25minutes at room temperature.
HANDLING PRECAUTIONS
Normal health and safety precautions should be observed when handling these products:
l ensure good ventilation,
l wear gloves and safety glasses.
For further information, please consult the product safety data sheet.
STORAGE CONDITIONS
Shelf life of both parts is 9 months in a dry place and in original unopened containers at a temperature between 15 and 25° C. Any open must be tightly closed under dry nitrogen blanket.
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