No Special skills, equipments, patch closure nor primer are needed. Its superior flexibility provides easy and reliable application for irregular configurations of fittings, bends and elbows and small diameter of straight pipes.
Wrap spirally the tape over foreign matters-free and preheated surface, beginning at least 25~50mm (1~2") onto pipe coating. Wrap the tape with enough tension to obtain conformability and with minimum 50% of overlapping, while removing the release liner. Warm the end part of the tape and press down firmly. Using a torch, start at the edge of the tape and heat circumferentially around the coated pipe.
Finish off by heating over the entire tape vertically to ensure a uniform adhesion and by using a roller or gloved hands to remove wrinkle and air.
|Inner Layer||Softening Point||99°C(210°F)||ASTM E28|
|Lap Shear||20N/cm2(29psi)||DIN 30672 (ASTM D1002)|
|Outer Layer||Tensile Strength||53N/cm(76psi)||ASTM D638|
|Dielectric Breakdown||23kV||ASTM D149|
|Tape||Water Absorption||0.05%↓||ASTM D570|
|Cathodic Disbondment||15mm||ASTM G8|
|To P.E Lining||20N/cm||ASTM D1000|
|To Steel Pipe||30N/cm|
|Pipe Size||Tape Width||Tape Length||
Length of tape required is for 3D(90°) With and overlap of 50%, a line coating cutback of 150mm and a 50mm overlapon pipe coating.
For other sizes, the following formula can be used:
Length of tape=Pipe Ø x 3.14 x L/WL=length of area to be covered. W=1/2 of tape width(50% overlap)