|
POLLYCOTE HTD
|
Pollycote - HTD is for use when very high temperatures prevail such as with offshore pipeline joint protection and is based on a tough special high temperature resistant PVC backing coated with a bitumen rubber adhesive.
TYPICAL PROPERTIES
|
PROPERTY
|
TEST METHOD
|
UNIT
|
DATA
|
|
MECHANICAL
|
|
Backing Colours
|
-
|
-
|
Black
|
|
Backing Type
|
-
|
-
|
PVC
|
|
Backing Thickness
|
DIN 30672
|
Microns
|
750
|
|
Total Thickness
|
DIN 30672
|
mm
|
1.65
|
|
Elongation
|
BS 2782
|
%
|
250
|
|
Tape Strength
|
BS 2782
|
N/cm
|
170
|
|
Modulus (50% ext.)
|
BS 2782
|
N/cm
|
70
|
|
Adhesion (1800 Peel) To primed steel
|
ASTM D1000
|
N/cm
|
45
|
|
Adhesion (1800 Peel) To self
|
ASTM D1000
|
N/cm
|
40
|
|
Adhesion (Shear)
|
-
|
N/cm2
|
180
|
|
Impact Resistance
|
DIN 30672
|
Nm
|
18
|
|
Penetration
|
DIN 30672
|
N/cm2
|
10
|
|
ELECTRICAL
|
|
Dielectric Strength
|
BS 2782
|
kV
|
38
|
|
Insulation Resistance
|
BS 2782
|
MΩ
|
106
|
|
Cathodic disbondment
|
|
|
|
|
Resistance (max)
|
ASTM G8
|
mm2
|
50
|
|
WATER
|
|
Water Vapour Permeability
|
BS 2782
|
g/m2/24h
|
0.4
|
|
Water Absorption
|
ASTM D570
|
%
|
0.1
|
|
GENERAL
|
|
Resistance to Bacterial Attack
|
BGAM
|
|
Nil
|
|
|
9.2.6.13
|
=
|
Growth
|
|
Drum skin test
|
|
Resists 220 0C for 10 mins
|
|
APPLICATION
|
|
* Temperature range wrapping
|
-
|
0C
|
+5 to + 220 |
| Temperature range in services |
- |
0C
|
-30 to+220 |
| Temperature range storage |
- |
0C
|
+20 to + 50 |
|
* Maximum temperatures refer to short transient temperatures only.
All figures were indicative when data sheet went to press
|
|
|
| |
-
3builders
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