Red Waterproof Sealing Mastic
- CCMT
- CHANGCHUN,CHINA
- Based on the order quantity
- 500,000 meters per month
1. Mastic tape used for cable termination can be operated from -40℃ to 90℃ with a high-performance thermoplastic material that remains flexible at low temperatures and not sticky at high temperatures.
2. The red waterproof sealing tape has a self-fluxing solvent-free composition and offers high insulation resistance and good waterproof sealing after the process of curing.
3. The red waterproof sealing tape is non-toxic and has anti-creeping characteristics a volume resistivity as 1.0×10¹⁵ Ω·cm can be achieved and by this the tracking is greatly prevented.
Cable splices and ends are always surrounded by outdoor moisture, industrial oil, and temperature variations. The common seal materials have tendency loss flexibility due to the shrinkage of curing or material aging which results in micro-cracks at an interface. After that moisture may penetrate through the conductor gaps that results in lowering the insulation resistance or even short circuits.
We use mastic tape for terminating cables, our mastic tape being a self-fusing and solvent-free one that can keep its stretchiness and not get brittle over a variety of temperatures, -40℃ to 90℃ is the range. Applying it, the material will spread on wrinkles on the cable or spaces among terminals, and after it hardens, it will result in one piece and flexible sealing. This kind of coating has an anti-tracking characteristic that can be used to stop water and corroding substances from getting in. So the insulation of the joint remains trustworthy over the years.
Product Performance Indicators:
| Property | Testing Method | Typical Data |
| Density | ASTM D 792 | 1.3g/cm² |
| Tensile Strength | ASTM D 638 | 0.1MPa |
| Elongation at Break | ASTM D 638 | 1000% |
| Dielectric Strength | IEC 243 | 15kV/mm |
| Dielectric Constant | IEC 250 | 3 |
| Volume Resistance | ASTM D 257 | 1.0×10¹⁵Ω·cm |
| Adhesive to Steel | DIN 30672 | 1.2N/mm |
Product Advantages:
1. With an elongation up to break of red cable sealing tape at an impressive 1000% one can imagine how easily it adapts to both mechanical displacement caused by cable joints and thermal expansion and contraction of cables during load change so as to keep the sealing layer intact without any sign of cracks or peeling even after being deformed.
2. Red waterproof cable sealing tape is of excellent insulation quality that the electric field remains even and the leakage of electrons is minimized after the filling of the cable and accessories. This leads to a higher level of stability during years of operation in the power line.
3. A red silicon silicone self sealing tape has a volume resistivity of 1.0×10¹⁵Ω·cm. This tape creates a high-impedance insulation barrier once cured that significantly hinders tracking and prevents surface creepage faults, especially in areas with high humidity.
4. Red water-proof sealing tape, by getting hot to bond after one wraps it around, not only merges with the insulation layer of the cable but also does away with possible air pockets, and thus water cannot penetrate through the interlayer interface. With a peel strength of 1.2N/mm specified in DIN 30672 it maintains the sealing layer as non-detachable during normal vibration and thermal stresses.
5. Red silicone self sealing tape, with a density of 1.3 g/cm³, has moderate fluidity during compaction, allowing it to naturally embed into irregular surfaces such as corrugated pipe grooves and terminal crimp marks, forming a full-fill seal without additional compaction.
Application Scenarios:
Red cable sealing water proof tape can be used to sealing cable splices and cable heads of medium and low voltage cables, Waterproof filling of inlet ports in outdoor distribution boxes, Sealing cable connectors gaps in the underground pipe corridors, Insulation protection of cable joints in the wind turbine towers, Sealing DC combiner box outlet ports in solar power plants, and moisture-proofing of terminal blocks indoors and industrial control rooms.
About CCMT:
We were founded in 1986 and are now almost forty years' deep in the cable accessories business. Our factory occupies an area of nearly 10,000 meters squared and has a workforce of over 200 plus the staff working on various equipment, i.e. over 40 pieces. Major production areas include compounds mixing, injection and extrusion molding and radiation crosslinking. The radiation crosslinking technology is used in our heatshrink products to enhance material performance, while silicone vulcanization is employed in the coldshrink products to keep elastic and seal properties. Thus, it results in a complete production line from the raw material input to the finished product output.
Certification Standards:
Our company is committed to the requirements of the ISO 9001:2015 quality management system. We have established, through the entire lifecycle of our products, a close-looped quality system beginning from the supplier level inspection of raw materials, production process control and product acceptance testing as well as delivering of final products. Our certificate No. is 00123Q36311R5M/2200. In addition, our heat shrank cable terminations, jointing kits are tested by the independent certification bodies which are worldwide well respected. Test reports confirm that characteristics of the terminals comply with the applicable technical standards.
Export Cooperation:
Having a 40-year history of exports, our company has launched marketing campaigns for our comprehensive cable accessories across several continents: the Middle East, SouthEast Asia, and America South, among others. We are able to handle exporting independently, or, on the other hand, combining supply with cold shrink tubing and heat shrink terminals to satisfy overseas projects one-stop purchase requirements. Through prior supply to international energy and electrical multinationals such as ABB and Shell, the company has amassed a wealth of knowledge in aspects of quality control and delivery.
Exhibition Activities:
We joined the major exhibitions of the world including the Hannover Messe 2023-2025 in Germany , Dubai Power & Energy Exhibition in the Middle East and Shanghai International Power Equipment & Technology Exhibition. Overseas clients complimented our quality standards and product certifications that were the main topics of their feedback. They also shared the initial ideas of doing testing and bulk supply of their products. These events helped in building our brand presence abroad and reinforcing what kind of brand the international market has come to associate with us.
FAQ:
1. How long after applying the sealant can the power be turned on?
Our product is a self-fluxing and solvent-free chemical. After you apply it, there is no need to wait. Electric power can be immediately restored after wrapping or filling, which reduces the application time greatly.
2. Will the sealant shrink or crack after long-term use?
The product keeps its elasticity between the temperature limits of -40℃ to 90℃, besides not exhibiting signs of hardening or cracking after exposure to extreme conditions for a very long time. Its formulation free of solvents prevents the common issue associated with the reduction of volume in regular sealants due to the evaporation of solvents. This results in the product's ability to continuously maintain a tight seal over the years.
