Joint wrap tape tape series is designed for corrosion protection of straight pipes, fittings, flanges valves, bends, elbows, carbon steel pipes and
other irregular configurations.
Joint wrap tape be made of a stabilized Polyethylene/PVC carrier film, coated on one sides with a permanently plastic synthetic compound on
Butyl rubber compound bitumen base.
Structure
The specification of the tape consists of three layers,
Adhesive: Butyl rubber Compound Bituminous Adhesion Promoting Resins
Film backing: Special blend of stabilized Polyethylene/Pvc
Interleaf: Anti-adhesive Film Treated with Silicone (release paper)
Features:
Heavy duty butyl bitumen compound adhesive
Excellent adhesion to pipe and self
Flexibility provides extra protection at vulnerable areas
Excellent conformability and consistent uniform thickness
Easily applied with no special equipment
Compatible with common pipe coatings
Excellent resistance to cathodic disbonding
Resistant to UV and water proof.
Can be applied over a wide temperature range
Good conformability and consistent uniform thickness
Physical Properties
Type
|
T 340
|
T 365
|
T 350
|
T 310
|
Thickness
|
40mil 1.0 mm
|
65mil 1.65mm
|
50mil 1.2 mm
|
0.8mm
|
When used for ductile iron pipes T340 is recommended.
|
Elongation
|
³400%
|
³400%
|
Tensile Strength
|
55 N/cm
|
70 N/cm
|
Color
|
Black
|
Yellow
|
Peel Adhesion to Primed Pipe
|
33 N/cm
|
Dielectric Strength
|
30 KV
|
Dielectric Breakdown
|
26 KV/mm
|
Cathodic Disbandment
|
0.24 in radius 6.4 mm
|
Water Vapor Transmission Rate
|
< 0.1%
|
Volume Resistivity
|
2.5 x 1015 ohm.cm
|
Impact resistance
|
5.5Nm
|
Penetration Resistance
|
<15%
|
Performance
|
AWWA C-209,ASTM D 1000,EN 12068
|