Sealrite Elastomers
Rubber
& Other Elastomers
Rubber
and other rubber like elastomers possesses mechanical properties
that make them excellent for use in a wide range of general industrial
applications including fluid sealing. Many synthethic elastomers
in particular are engineered to resist a range of chemicals
and reduce the ageing effect common to natural rubber. This makes
these materials suitable for use as gaskets, seals, covers, linings
and mats.Sealrite offers a wide range or rubber materials in sheet
or roll form. They may be used for a wide range of applications
as well as sealing material.
Natural
Rubber
Made from
the latex of rubber tress, natural rubber is an economical material
for general sealing and insulation applications. It has relatively
high tensile strength, excellent electrical resistvity, good low
temperature flexibility and relativiely low permanent set. Not suitable
for use with hydrocarbons, oils or solvents and will deteoriate
over time if exposed to oxygen or ozone. Natural rubber is available
with or without rubber insertion.
Colour/Finish
(no insertion)
|
Black/smooth
|
Colour/
Finish (with insertion)
|
Black/smooth
or cloth finish
|
Operating
Temperature
|
-10oC
min to 70oC max
|
Specific
Gravity
|
1.75
|
Hardness
|
70
+/- 5 duro
|
Minimum
Tensile Strength
|
2.4
N/mm2
|
Elongation
at break
|
150%
+/- 50%
|
Sizes
|
1.5mm
x 1m x 20m, 50kg +/- 5%
3.0mm x 1m x 10m, 50kg +/- 5%
5.0mm x 1m x 6m, 50kg +/- 5%
6.0mm x 1m x 5m, 50kg +/- 5%
|
|
Neoprene
Neoprene
(polychloroprene) is a synthethic elastomer that is resistant to
ozone, hydrocarbons and shows good resistiviity to electirc current.
A versatile material with better weather resistance than natural
rubber, it is widely used in industry as a general gasket material
for low pressure and low temperature applications. Available with
or without one ply fabric insertion.
Colour/Finish
(no insertion)
|
Black/smooth
|
Colour/
Finish (with insertion)
|
Black/smooth
|
Operating
Temperature
|
-10oC
min to 80oC max
|
Specific
Gravity
|
1.65
|
Hardness
|
65
+/- 5 duro
|
Minimum
Tensile Strength
|
4
N/mm2
|
Elongation
at break
|
200%
+/- 50%
|
Sizes
|
1.5mm
x 1.2m x 20m, 50kg +/- 5%
3.0mm x 1.2m x 10m, 50kg +/- 5%
5.0mm x 1.2m x 6m, 50kg +/- 5%
6.0mm x 1.2m x 5m, 50kg +/- 5%
|
|
Nitrile
Butadiene Rubber (NBR)
NBR is
a synthethic elastomer that is resistant to many chemicals, oils
and solvents. Often use as a general purpose oil resistant material,
it is widely use as a gasket material, in oil lining for machinery,
for oil well parts and in hydraulic equipment. Not recommended for
use as electircal insulation.
Colour/
Finish
|
Black/smooth
|
Operating
Temperature
|
-10oC
min to 100oC max
|
Specific
Gravity
|
1.2
|
Hardness
|
70
+/- 5 duro
|
Minimum
Tensile Strength
|
16
N/mm2
|
Elongation
At Break
|
300%
+/- 50%
|
Available
Thickness
|
1.5mm,
3mm, 5mm, 6mm
|
|
Ethylene
Propylene Diene Monomer(EPDM)
EPDM is a synthethic elastomer that displays
excellent resistance to ozone and relatively good resistance to
acids and alkalines.It also has good heat resistance and high electrical
resistivity. However it may be susceptable to attack by oils. Recomended
for use with phosphate ester based hydraulic fluid but not with
petroleum based fluids. It is commonly used as gaskets, in automotive
parts and as cover strips.
Colour/
Finish
|
Black/smooth
|
Operating
Temperature
|
-40oC
min to 140oC max
|
Specific
Gravity
|
1.2
|
Hardness
|
60
+/- 5 duro
|
Minimum
Tensile Strength
|
7
N/mm2
|
Elongation
At Break
|
300%
+/- 50%
|
Available
Thickness
|
1.5mm,
3mm, 5mm, 6mm
|
|
Silicone (Si)
Silicone is a synthethic siloxane polymer that
displays excellent dielectric properties, high resistance to oxidation
and very good heat resistance. It is odourless and tasteless and
is commonly used in consumer products. Silicone sheets may be used
for gaskets, weatherproofing and electrical insulation. Not recommended
for use with steam, oils or hydrocarbons.
Colour/
Finish
|
White/smooth
|
Operating
Temperature
|
-10oC
min to 250oC max
|
Specific
Gravity
|
1.2
|
Hardness
|
60
+/- 5 duro
|
Minimum
Tensile Strength
|
8
N/mm2
|
Elongation
At Break
|
300%
+/- 50%
|
Available
Thickness
|
1.5mm,
3mm, 5mm, 6mm
|
|
|