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SMC (UP GF25)

Description

General

SMC is an abbreviation for Sheet Molding Compound. This is a material composed of Styrene, Polyester, Glass fibre, a filler and some agents. SMC is delivered as sheet usually 4mm thick and 1500mm wide. It can be stored in a roll or folded prior to application. SMC must be used within weeks or some months depending of the formulation and storage conditions. For first class surface quality the glass content is limited to 30%. Continuous strands and woven rovings are also avoided to optimise surface quality
Glass Fiber Reinforced Thermoset Polyester

Properties

Chemical properties

Minimum value Maximum value Unit Sources
0.05 % Idemat 2003
%

Electrical properties

Minimum value Maximum value Unit Sources
kV/mm
%
V
1.00E+020 1.00E+020 Ohm.mm²/m Idemat 2003

Manufacturing Properties

Minimum value Maximum value Unit Sources

Mechanical properties

Minimum value Maximum value Unit Sources
150 200 MPa Idemat 2003
MPa
MPa
1700 2000 kg/m³ Idemat 2003
1 1.3 % Idemat 2003
MPa
60 90 J/cm Idemat 2003
3400 5000 MPa Idemat 2003
65 80 MPa Idemat 2003
MPa
MPa
8500 12500 MPa Idemat 2003

Optical properties

Minimum value Maximum value Unit Sources

Thermal properties

Minimum value Maximum value Unit Sources
°C
°C
°C
J/kg.K
W/m.K
14 18 e-6/K Idemat 2003

Environment

4.5 mPt
0.25 Pt
549 mELU
7.62 MJ/MJ
MJ
kg
kg
Although up to 15% material can be reused, this is normally no practice.

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