SILICONE BALLS

Silicone rubber balls, they can be used in a wide range of temperatures with high elastic properties. They are resisting to weather and radiation and they can be insulating or conducting according to the manufacturing processing. They do not provide good mechanical and wear features.
Applications
Silicone rubber balls are used in applications where good elastic properties are required both at low and high temperatures. They are used in the foodstuff, automotive, medical fields and are excellent sealing elements.
Technical name
Commercial name
Abbreviation
Polysiloxane / Polydimethylsiloxane
Silicone
MQ / VMQ / PMVQ / PDMS
Physical / mechanical / thermal / electric / magnetic properties
Property
Symbol
U.o.M.
Type
Notes
Values
Density
δ
[g/cm3]
Physical
Room temp.
1.20
Young's modulus
E
[MPa]
Mechanical
-
7
Elongation at break
A
%
Mechanical
Room temp.
max 400
Compression set
-
%
Mechanical
Room temp.
40
Friction coefficient
µ
-
Mechanical
Room temp.
1.00
Coefficient of linear thermal expansion
α
[10^-6/ºC]
Thermal
(ΔT=0-100°C)
230.0
Thermal conductivity
λ
[W/(m·K)]
Thermal
Room temp.
0.17
Electric resistivity
ρ
[Ohm.mm2/m]
Electric
-
10^4 < ρ < 10^15
Relative magnetic permeability
µ
-
Magnetic
Diamagnetic
<~1
Technical data
Property
Type
U.o.M.
Values
U.o.M.
Values
Hardness
Mechanical
[Shore A]
20 - 90
-
-
Ultimate tensile strength
Mechanical
[MPa]
8 - 12
[psix10^3]
1.16 - 1.74
Service temperature
Thermal
[ºC]
-60 / 190
[ºF]
-76 / 374
Range
Diameters (min/max)
U.o.M.
Diameters (min/max)
U.o.M.
Precision Grade
1.000 - 150.000
[mm]
3/64 | 5.3/4
["]
III
Corrosion Resistance
Good corrosion resistance in contct with water (even hot water), oxygen, ozone, hydraulic fluids, animal and vegetal oils and greases, diluted acids. They are not resisting in contact with strong acids and basis, mineral oils and greases, alkalis, aromatic hydrocarbons, ketones, petroleum products, polar solvents.
Revision n.14