TD7000 Sealing material, compounded with Silicone Rubber
Glass transition temperature - tg(1)
Elastic Modulus (MPa)
TD7000
TD7000 sealing material is compounded with Silicone (VMQ) rubber.
This product is suitable for most transformer oils with an outstanding resistance
to extreme temperatures
1008
Tg= -60º C
Material description & properties
1007
-80
-60
-40
-20
0
20
40
60
Temperature (ºC)
• Temperature range -60°C to 175°C (-76°F to 347°F)
• Stress range 2.6 to 12 MPa (377 to 1740 psi
• Compressive strength exceeds exceeds exceeds 70 MPa (IOOOOpsi)
( 1) ASTM E1640
TD 7000 conforms to all present regulations for hazardous substances.
• Asbestos Free
• Heavy Metals (Pb, Cd,Hg and Cr (VI)) Free
• Polycyclic Aromatic Hydrocarbons (PAH) Free
Volume change @ 125ºC (2)
% Change
30%
27%
mineral oil
24%
21%
18%
• Density (kg /m3)1
• Hardness (shore A)2
• Tensile strength (MPa)3
• Elongation (%)3
15%
70H
1
) ASTM D297
) ASTM D2240
3
) ASTM D412, DieC
336 H
168 H
2
Time (hours)
( 2) ASTM F146
1100
70
3,0
100
Heat ageing data, air @ 150ºC 3,4)
TD 1150 is suited for Mineral oil according to:
• ASTM D3455-Test Methods for Compatibility of Construction Materials
with Electrical lnsulating Oil of Petroleum origin.
10
Value
8
6
Fluid contact
4
• Mineral oil acceptable
• Natural ester oil acceptable
• Silicone oil unsuitable
• Sf6 gas unsuitable
2
0
70H
( 3) ASTM D2240
( 4) ASTM F147
e-Mail: info@seaco.eu
168 H
336 H
Time (hours)
Hardness Change (Shore A)
Flexibility
Tel.: +31 (0)10 522 65 36
Fax:
+31 (0)10 - 522 06 36
TDE
01A
TD7000 Sealing material, compounded with Silicone Rubber
.
FLANGE
FASTENER
Gasket Design Guidelines
MEDIUM
A gasket material suitability is defined by variety of application factors shown in the adjacent diagram.
The common perception that temperature and chemical resistance must be assured are only part
of the equation. Amorim Cork Composites systems approach ensures joint integrity by considering
the multiple variables that are involved. Sealing Stress and System Distortion are key characteristics that
influence each other. Sealing Stress is defined by the total fastener loading for a given gasket contact area.
System Distortion is a function of the hardware manufacturing process and assembly procedure or loading. The
selection of the gasket thicknessdepends on these two factors
GASKET
SEALING AREA
TEMPERATURE
Stress (MPa)
1,00 mm 1,50 mm
2,40 mm
3,20 mm
4,00 mm
6,00 mm
9,00 mm
12
11
10
9
8
7
6
5
4
3
2
1
A Load Deflection (LD) curve is a Stress (MPa) vs. Strain (mm) curve. lt is the load required to compress a
material at a detined thickness a determined deflection.
lt is very useful when making material selections to meet engineering requirements such as
flange load or controlled compression applications.
lf you require LD data ata different thickness, just ask us.
0
0,5
1,0
1,5
2,0 2,5 3,0
Strain (mm)
3,5
4,0
4,5
5,0
5,5
10
11
12
Application Stress (MPa)
2
3
4
5
6
7
8
9
System Distortion
0
Application Distortion (mm)
Sealing Stress
0,4
0,8
1,2
Conformability is the ability of a gasket material to conform to flange surface roughness and out-of-flatness.
At a given sealing stress a corresponding maximum allowable flange distortion assures that a “positive seal” is
guaranteed for a defined material thickness.
lntersecting the hardware distortion and the respective sealing stress. a suggested material thickness is selected.
However it is always recommended to validate the material thickness in your system dueto unexpected flange
distortion behavior.
1,6
2,0
2,4
2,8
1,00 mm 1,50 mm 2,40 mm 3,20 mm 4,00 mm 6,00 mm 9,00 mm
e-Mail: info@seaco.eu
Tel.: +31 (0)10 522 65 36
Fax:
+31 (0)10 - 522 06 36
TDE
02A