Changchun Heat Shrinkable Materials Co.,Ltd.
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Single Wall
C-2
C-2(L)
C-2(T)
C-2(HF)
C-2(R)
C-2(F)
C-2(D)
C-8
Dual Wall
C-11
C-11(R)
C-11(S)
Special Purpose Tubing
C-13
C-14
PVC Tubing
Cross Reference
Selection Guide
Heat Shrinkable Tubing
 
 
 
     Selection Guide
type
name material
feature standard colors
Single Wall   c-2   polyolefin   Flexible   back, Red, Blue, Yellow, Green, White, Gray, Dual colors
c-2(L)   polyolefin
Flexible   Black
C-2(T)   polyolefin
Flexible   Black
C-2(HF)   polyolefin
Flexible   back, Red, Blue, Yellow, Green, White, Gray, Dual colors
C-2R(2X)   polyolefin
Semi-Rigid   Black
  C-2R(3X)   polyolefin   Semi-Rigid   Black
C-2(F)   polyolefin
Flexible   Black
C-2(D)   polyolefin
Semi-Rigid   Black, Red, Blue, Yellow, Green
C-8   polyolefin
flexible   Black,Transparent
Dual Wall
C-11(3X)   polyolefin
flexible   Black
C-11(4X)   polyolefin
flexilbe   Black
C-11(R)   polyolefin
Semi-Rigid   Black
C-11(S)   polyolefin
Semi-Rigid   Black
Special Purpose
C-13   PVDF
Semi-Rigid   transparent
C-14   fluoroelastomer
Semi-Rigid   black
PVC   PVC
Semi-Rigid   transparent,Black
 
type
name
size range
Shrink ratio
operationg temperature
min.Shrink temperature
Single Wall   c-2  
0.8~30mm
3/63~1 1/4"
 
2:1
  
-40~125¡æ
-40~257¨H
 
80¡æ
176¨H
c-2(L)  
0.8~30mm
3/63~1 1/4"
2:1
  
-30~105¡æ
-22~221¨H
 
70¡æ
158¨H
C-2(T)  
1.0~11mm
1/16~29/64"
2:1
  
-30~125¡æ
-22~257¨H
 
70¡æ
158¨H
C-2(HF)  
0.8~30mm
3/63~1 1/4"
2:1
  
-30~125¡æ
-22~257¨H
 
70¡æ
158¨H
C-2R(2X)  
0.8~30mm
3/63~1 1/4"
2:1
  
-55~135¡æ
-67~275¨H
 
110¡æ
230¨H
  C-2R(3X)  
0.8~30mm
3/63~1 1/4"
  
3:1
  
-55~135¡æ
-67~275¨H
 
110¡æ
230¨H
C-2(F)  
1.5~39mm
3/32~1/ 2"
2:1
  
-55~135¡æ
-67~275¨H
 
110¡æ
230¨H
C-2(D)  
35~200mm
1 1/2~8"
2:1
  
-55~125¡æ
-67~257¨H
 
90¡æ
194¨H
C-8  
0.8~30mm
3/63~1 1/4"
2:1
  
-40~105¡æ
-40~221¨H
 
90¡æ
194¨H
Dual Wall
C-11(3X)  
3.0~50mm
9/64~2"
3:1
  
-55~125¡æ
-67~257¨H
 
80¡æ
176¨H
C-11(4X)  
4.0~40mm
3/16~1 1/2"
4:1
  
-55~125¡æ
-67~257¨H
 
80¡æ
176¨H
C-11(R)  
5.72~17.78mm 0.225~0.700"
4:1
  
-40~135¡æ
-40~275¨H
 
110¡æ
230¨H
C-11(S)  
10.0~180mm
13/32~7"
3:1
  
-55~110¡æ
-67~230¨H
 
90¡æ
194¨H
Special Purpose
C-13  
1.2~38mm
3/64~1 1/2"
2:!
  
-55~175¡æ
-67~347¨H
 
155¡æ
311¨H
C-14  
1.2~38mm
3/64~1 1/2"
2:1
  
-55~200¡æ
-67~392¨H
 
110¡æ
230¨H
PVC  
0.55~19mm
1/64~3/4"
non shrink
 
-20~105¡æ
-4~221¨H
   
 
type
name
Full recovery temperature
flame retardant
applicables standards
Single Wall   c-2  
120¡æ
248¨H
 
yes
   UL224, CSA22.2
c-2(L)  
90¡æ
194¨H
 
yes
   UL224, CSA22.2
C-2(T)  
110¡æ
230¨H
 
yes
   UL224, CSA22.2
C-2(HF)  
110¡æ
230¨H
 
yes
   UL224, CSA22.2
C-2R(2X)  
135¡æ
275¨H
 
yes
   UL224, CSA22.2
  C-2R(3X)  
135¡æ
275¨H
 
yes
   UL224, CSA22.2
C-2(F)  
135¡æ
275¨H
 
yes
    
C-2(D)  
125¡æ
257¨H
 
yes
    
C-8  
105¡æ
221¨H
 
no
    
Dual Wall
C-11(3X)  
110¡æ
230¨H
 
yes
   UL224
C-11(4X)  
110¡æ
230¨H
 
yes
   UL224
C-11(R)  
135¡æ
275¨H
 
yes
   UL224
C-11(S)  
121¡æ
248¨H
 
yes
   UL224
Special Purpose
C-13  
175¡æ
337¨H
 
yes
    
C-14  
200¡æ
392¨H
 
yes
    
PVC  
 
no
   UL224
 
 
 
     Tubing Selection
 
 
1.1 General
Heat shrinkable tubing is capable of being significantly reduced in diameter upon exposure to heat. Non-heat shrinkable tubing does not change in size when heated. Heat shrinkable tubing is supplied in a temporarily expanded size that allows the user to easily place it around the object to be covered before it is shrunk to a smaller size, thereby providing a tighter fit. Application of sufficient heat causes the tubing to contract in diameter until it comes into contact with the object being covered.

The nominal size of heat shrinkable tubing is the minimum inside diameter that the tubing will have when it is supplied to the customer, in the expanded state. The recovered size of the tubing is the maximum inside diameter that the tubing will have if it is allowed to recover fully through the application of heat. The nominal recovered wall thickness is the wall thickness that would result if the tubing were allowed to recover fully.

Heat shrink tubing most commonly has a nominal maximum shrink ratio of 2:1, but tubing having a nominal shrink ratio of 3:1 or 4:1 is also available.

Adhesive lined or dual wall heat shrinkable tubing contains an inner adhesive lining that melts upon application of heat, thus serving to encapsulate the object while the tubing shrinks. This type of tubing is recommended for applications in which environmental conditions require sealing against moisture or other

 
 
1.2 How To Select The Correct Size Of Tubing
1.2.1 Measure Outside diameter of the object you wish to cover.
1.2.2 Determine the diameter size of the heat shrinkable tubing you need:

    D: The size of the tubing's Inside Diameter
    Odo: Outside diameter of the object to be covered.
    Expanded ID(IDe): The minimum expanded ID
    Recovered ID(IDr): The maximum recovered ID
  1. For Tubing Shrink Ratio 2:1,
    120% ¡Ü IDe/ODo ¡Ü 160%
    60% ¡Ü IDr/ODo ¡Ü 80%
  2. For Tubing Shrink Ratio 3:1,
    120% ¡Ü IDe/ODo ¡Ü 240%
    40% ¡Ü IDr/ODo ¡Ü 80%
  3. For Tubing Shrink Ratio 4:1,
    120% ¡Ü IDe/ODo ¡Ü 320%
    30% ¡Ü IDr/ODo ¡Ü 80%
 
 
1.3 Notice
When heat shrinkable tubing is recovered, it primarily shrinks in diameter. However, there is a small longitudinal shrinkage that takes place as well. This longitudinal shrinkage can vary, depending upon the amount of recovery that is allowed to take place in your application. Most PVC products have maximum longitudinal shrinkage of approximately 10%, and most polyolefin products have maximum longitudinal shrinkage of approximately 5%. When specifying the cut length of heat shrinkable tubing, be sure to allow for such longitudinal shrinkage.
 
 
 
     Tubing Processing
 
 
  • Cut the shrink tubing. Be sure to have a smooth cut edge.
  • Slide the tubing over object to be sealed.
  • Shrink the tubing onto the object. Use a heating appliance for this process, e.g. a heat gun or a shrink tunnel.
  • Optimal shrink temperature of the material is vital to assure a short shrink period.
  • You can find the shrink temperature in the corresponding tables. Ensure even heat distribution to prevent overheating. Overheating the material during the shrink process may cause bubbles, discolouration, or damage to the tubing
 
 
diagram

Single Wall tubing   Dual wall tubing