COPOLYMER COATED STEEL TAPE

Copolymer Coated Steel Tape (also called CCST) is mainly used as a shield and moisture-proof layer inside the "jacket" of a communication cable, optical fiber (or fiber-optical) cable or similar. It consists of a steel tape, which is coated on both sides with an adherent ethylene copolymer. The Steel base is made of chrome-electroplated cold-rolled steel tape. The copolymer exhibits excellent adhesion to the steel substrate and has the chemical resistance and general characteristics of lower density polyethylene. It bonds to low, linear low, medium and high density polyethylene.

Technical Characteristics Table:

Property	Unit	Standard				Test Method
Steel Thickness	mm	0.12	0.13	0.14	0.15	YD/T 723.3-2007
EAA Copolymer Thickness	mm	0.05+/-0.01
Total Thickness (Single Side)	mm	0.17	0.18	0.19	0.20
Total Thickness (Double Sides)	mm	0.22	0.23	0.24	0.25
Tensile Strength*	Mpa	310-390				ASTM E8
Elongation	%	≥15				ASTM E8
Peel Strength	N/cm	≥6.13				ASTM B736
Heat Seal Strength	N/cm	≥17.5				ASTM B736
Water Resistance Peel Strength (68±1°C, 168h)	N/cm	≥6.13				ASTM B736
Filler/Floodant	-	No Delamination				REAPE-39, PE-89
Dielectric Strength	-	Single Side(DC 1KV 1min)		Without Breakdown
Dielectric Strength	-	Double Sides(DC 2KV 1min)		Without Breakdown
Corrosion Resistance (0.1mol/L NaOH 480h)		≥7

*Tensile Strength test result calculates according to the aluminum thickness, not total thickness.

Winding Solution:

Type	ID (mm)	Length (m)	Standard Width (mm)	Core
Pad	102(4“),152(6“), 203(8“), 406(16“)	2050-4400	≥12	Metal, Plastic
Jumbo	102(4“),152(6“), 203(8“), 406(16“)	2050-4400	610,810	Metal