Product Description

Medium Wall Heat Shrink Tubing

With Black Sealant Mastic

Medium Wall tubing with mastic sealant, Mastic lined heat shrink tubing, MHST-M

Model: MHST-M

Features/Applications

Medium Wall Heat Shrink Tubing With Black Sealant Mastic (MHST-M) is mastic lined heat shrinkable tubing, designed specially for protecting metal pipe’s joint, soil nails and other connectors requiring environmental sealing. The radiation cross- linked jacket provides effective mechanical protection and the mastic layer provides excellent water and moisture proof.

>Resistant to UV-radiation
>High electrical insulation
>Coated with black mastic
>Minimum fully recovery temperature: 120 ℃

Technical Data

Property

Test Method Typical Data
Operating temperature IEC 216 -35℃ to +110℃
Tensile strength ASTM D 2671 ≥14MPa
Elongation at break ASTM D 2671 ≥400%
Longitudinal Shrinkage UL 224 0 to -10%
Eccentricity ASTM D 2671 <30%
Elongation at break after aging (150℃/ 168hrs.) ASTM D 2671 ≥300%
Dielectric strength IEC 243 ≥20kV/mm
Volume resistance IEC 93 ≥1014Ω.cm
Copper stability ASTM D 2671 Pass
Resistance to stress cracking (50℃) ASTM D 1693 No Cracking
Cold bend test (-55℃/ 4hrs.) ASTM D 2671 No Cracking
Property Test Method Typical Data
Water absorption ISO 62 <0.1%
Softening point ASTM D E8 80℃
Peel strength to stainless steel ASTM D 1000 50N/25mm
Copper stability ASTM D 2671 Non-corrosive
Resistance to fungus and decay ISO 846 Pass

Specification

Normal size (mm) As supplied (mm) After recovered (mm) Tube shape Standard length
Inside diameter (Min.) Inside diameter (Max.) Wall thickness (Min.)
30/ 6 30 6 2.5 O 1000-1500mm
33/ 8 33 8 2.5 O 1000-1500mm
40/12 40 12 2.5 O 1000-1500mm
55/ 20 55 20 2.0 O 1000-1500mm
75/ 25 75 25 2.0 O 1000-1500mm
95/ 30 95 30 2.0 O 1000-1500mm
120/ 40 120 40 2.0 O 1000-1500mm
140/ 50 140 50 2.3 O 1000-1500mm
160/ 50 160 50 2.3 O 1000-1500mm
180/ 66 180 66 2.5 O 1000-1500mm
205/ 66 205 66 2.5 O 1000-1500mm
235/ 70 235 70 2.5 O 1000-1500mm
265/ 75 265 75 3.0 O 1000-1500mm
300/ 85 300 85 3.0 O 1000-1500mm
350/ 100 350 100 3.0 O 1000-1220mm
Tube shape:  “O” : Round or Oval,  “—”: Flat