Semi-conductive Water Blocking Tape


  • Payment Terms T/T, L/C, D/P, etc.
  • Delivery Time 20 days
  • Place of Origin China
  • Port of Loading Shanghai, China
  • Shipping By sea
  • HS Code 5603131000
  • Packaging Carton or wooden box, 50kg/pack or according to client's requirement
  • Product Detail

    FAQ

    Product Introduction

    Semi-conductive water blocking tape is a modern high-tech water-blocking material with semi-conductive water-absorbing and expansion function, which is composed of semi-conductive polyester fiber non-woven fabric and high-speed expansion water-absorbing resin.

    Among them, the semi-conductive base layer is manufactured by evenly distributing the semi-conductive compound on the base cloth that is relatively flat, has strong temperature resistance and high strength; the semi-conductive water-blocking material uses powdery polymer water-absorbing material and conductive carbon black. The water-absorbing material is attached to the base fabric by padding or coating.

    The semi-conductive water blocking tape has the function of water-absorbing and expansion and improving the electric field distribution in the cable, and is widely used in power cables of various voltage levels.

    We can provide single-sided/double-sided semi-conductive water blocking tape. The single-sided semi-conductive water blocking tape is composed of a single layer of semi-conductive polyester fiber non-woven fabric and high-speed expansion water-absorbing resin; the double-sided semi-conductive water blocking tape is composed of semi-conductive polyester fiber non-woven fabric, high-speed expansion water-absorbing resin and semi-conductive polyester fiber non-woven fabric in turn. The single-sided semi-conductive water blocking tape has better water blocking performance because it has no base cloth to block.

    The semi-conductive water blocking tape we provided has the following characteristics:
    1) The surface is flat, without wrinkles.
    2) The fiber is evenly distributed, the water blocking powder and the base tape are firmly bonded, without delamination and powder removal.
    3) High mechanical strength, easy for wrapping and longitudinal wrapping processing.
    4) Strong hygroscopicity, high expansion height, fast expansion rate, and good gel stability.
    5) Small surface resistance and volume resistivity, which can effectively weaken the electric field strength
    6) Good heat resistance, high instantaneous temperature resistance, cable can maintain stable performance under instantaneous high temperature.
    7) High chemical stability, no corrosive components, resistant to bacterial and fungal erosion.

    Application

    Mainly used in power cables of various voltage levels to block water and improve electric field distribution.

    Technical Parameters

    Item

    Technical Parameters

    Single-sided semi-conductive water blocking tape

    Double-sided semi-conductive water blocking tape

    Nominal Thickness

     (mm)

    0.30

    0.40

    0.50

    0.30

    0.40

    0.50

    Tensile strength

    (N/cm)

    ≥30

    ≥30

    ≥40

    ≥30

    ≥30

    ≥40

    Breaking elongation

    (%)

    ≥10

    ≥10

    ≥10

    ≥10

    ≥10

    ≥10

    Surface resistance

    (Ω)

    ≤1500

    ≤1500

    ≤1500

    ≤1500

    ≤1500

    ≤1500

    Volume resistance

    (Ω·cm)

    ≤1×105

    ≤1×105

    ≤1×105

    ≤1×105

    ≤1×105

    ≤1×105

    Expansion speed

    (mm/min)

    ≥6

    ≥8

    ≥10

    ≥8

    ≥8

    ≥10

    Expansion height

    (mm/5min)

    ≥8

    ≥10

    ≥14

    ≥10

    ≥10

    ≥14

    Water ratio

    (%)

    ≤9

    ≤9

    ≤9

    ≤9

    ≤9

    ≤9

    Thermal stabilitya)Long-term temperature resistance(90℃,24h)Expansion height(mm)

    b)Instantaneous high temperature(230℃,20s)

    Expansion height(mm)

    ≥Initial value

    ≥Initial value

    Note: More specifications, please contact our sales staff.

    Packaging

    Semi-conductive water blocking tape is packaged in pad or spool.

    Storage

    1) The product shall be kept in a clean, dry and ventilated warehouse.
    2) The product should not be stacked together with flammable products or strong oxidizing agents and should not be close to fire sources.
    3) The product should avoid direct sunlight and rain.
    4) The product should be packed completely to avoid moisture and pollution.
    5) The product shall be protected from heavy pressure and other mechanical damage during storage.
    6) The storage period of the product at ordinary temperature is 6 months from the date of production. More than 6 months storage period, the product should be re-examined and only used after passing the inspection.


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  • Q1: Can we visit your company?
    A: we are looking forward to your arrival and we will lead you to visit our factory.

    Q2: How fast can I get the quotation?
    A:We usually quote within 24 hours for normal cable materials after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.

    Q3: What is your terms of packing?
    A: Wooden drum, plywood pallet, wooden box, carton are for option, depends on different material or client’s requirements.

    Q4: What is your terms of payment?
    A: T/T, L/C, D/P, etc. We’ll show you the photos of the products and packages before you pay the balance.

    Q5: What is your terms of delivery?
    A: EXW, FOB, CFR, CIF. You can choose the one which is the most convenient or cost effective for you.

    Q6: How about your delivery time?
    A: Generally, it will take 7 to 15 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

    Q7: What is your sample policy?
    A: Sample for your tests are available, Please contact our sales to apply the free sample.

    Q8: How do you make our business long-term and good relationship?
    A: 1. We keep good quality and competitive price to ensure our customers benefit.
    2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

    Q9: Do you supply all the cable materials according to the cables we produce?
    A: Yes, we can. We have technician on production technology which is engaged in analyzing cable structure so as to list all the materials you need.

    Q10: What are your business principles?
    A: Integrating resources. Helping customers choose the MOST suitable materials, saving costs and improving quality.
    Small profits but quick turnover: Helping customers’ cables become more competitive in the market and develop rapidly.

    Q1: Can we visit your company?
    A: we are looking forward to your arrival and we will lead you to visit our factory.

    Q2: How fast can I get the quotation?
    A:We usually quote within 24 hours for normal cable materials after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.

    Q3: What is your terms of packing?
    A: Wooden drum, plywood pallet, wooden box, carton are for option, depends on different material or client’s requirements.

    Q4: What is your terms of payment?
    A: T/T, L/C, D/P, etc. We’ll show you the photos of the products and packages before you pay the balance.

    Q5: What is your terms of delivery?
    A: EXW, FOB, CFR, CIF. You can choose the one which is the most convenient or cost effective for you.

    Q6: How about your delivery time?
    A: Generally, it will take 7 to 15 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

    Q7: What is your sample policy?
    A: Sample for your tests are available, Please contact our sales to apply the free sample.

    Q8: How do you make our business long-term and good relationship?
    A: 1. We keep good quality and competitive price to ensure our customers benefit.
    2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

    Q9: Do you supply all the cable materials according to the cables we produce?
    A: Yes, we can. We have technician on production technology which is engaged in analyzing cable structure so as to list all the materials you need.

    Q10: What are your business principles?
    A: Integrating resources. Helping customers choose the MOST suitable materials, saving costs and improving quality.
    Small profits but quick turnover: Helping customers’ cables become more competitive in the market and develop rapidly.