Built-in Mastic Cold Shrink Tube – Cures Without Leaking, Waterproof Sealing Master!

Product Description:
  The built-in mastic cold shrink tube is a waterproof sealing product specially designed for outdoor cable and connector protection. This built-in mastic cold shrink tube comes with pre-coated mastic, eliminating the need for additional filling. The mastic cures without leaking, providing highly reliable flow sealing. Both ends of this built-in mastic cold shrink tube seal tightly against the cable wall, effectively preventing rainwater ingress. With excellent aging resistance and weather resistance, this built-in mastic cold shrink tube offers long service life. It is widely used for waterproof sealing of coaxial cables at telecom base stations, CATV connectors, N-type connectors, 1/2 jumpers, DIN heads, wire and cable connections, and other types of insulation sealing.

Application Scenarios:

• Waterproof sealing for coaxial cables at telecom base stations

• N-type connectors

• 1/2 jumpers

• DIN heads and 1/2 jumper connectors

• Waterproof sealing for CATV (cable TV) connectors

• Wire and cable connections

• Other types of connection and insulation sealing

Key Features:

1. Cures without leaking – The built-in mastic solidifies without overflow, providing highly reliable flow sealing

2. Both ends seal tightly – The inner walls at both ends of the cold shrink tube seal firmly against the cable, effectively preventing rainwater ingress

3. Aging resistant & weather resistant – Withstands UV, ozone, and sun exposure for long service life

4. Easy installation – No tools required, simply slide into place

5. High radial pressure – Excellent rebound performance for a tight seal

6. Mechanical damage resistance – Outstanding tear and abrasion resistance

technical parameters

FAQ 

Q1: Does the built-in mastic cure?
Yes. The built-in mastic cures automatically after application without overflowing, ensuring a reliable seal.

Q2: How waterproof is this built-in mastic cold shrink tube?
The waterproof rating is IP68, allowing full submersion. The sealed inner walls at both ends effectively prevent rainwater ingress.

Q3: Are tools required for installation?
No. Simply slide it over the cable connector, and the cold shrink tube will contract and seal automatically.

Q4: How is the aging resistance?
Excellent. It resists UV, ozone, and sun exposure, providing a long service life outdoors.

Q5: Which connectors is it suitable for?
N-type connectors, 1/2 jumpers, DIN heads, CATV connectors, wire and cable, and more.