Product Main

Specifications

Outstanding anti-ageing LSR
High elongation at break and low tension set
High tear strength
Excellent proof tracking
Medium voltage resistance LSR
1)  Basic model:LSR1510-45A/B.LSR1510-35A/B. 
2)  Product Description
     2-part liquid silicone rubber,which is particularly suitable for injection molding with tracking resistance 1A 3.5
     grade, mixing ration of parts A:B=1:1,catalyzed by platinum.The appearance of A is transparent and B is grey.     
3) Key Features
          Outstanding anti-ageing
           High elongation and low tensile set
           High tear strength
           Excellent tracking resistance  
           Rapid vulcanization
           Injection molding
4) Applications
    Indoor and outdoor cold shrink terminals
    Medium voltage cable accessories
    Cable connectors
5) Storage
    Correctly stored in its original closed container at room temperature (max 30). SQUARE® LSR1510-35A/B LSR1510-45A/Bhas a shelf life of  12 months. The ready to use LSR1510-35A/B LSR1510-45A/B should be kept tightly closed, if doesnt , it will affect the shelf life.
6) How to use
    Ready-to-use mixturescomponent A and Bare fed directly to injection molding machine from the original containers by means of a metering end mixing unit called static mixer. The mixtureat the mixing ratio 11 is injected into the heated mould. The shelf life is 7 days (23°C) after mixing. The pipline should be cleared if the machine wont work for long time.
7) Packaging
     SQUARE®SR1510-35A/B,LSR1510-45A/B are available in 20kgs pails or 200kgs drums.
8) Typical Properties
Uncured
Properties
Test method
Properties
Unit
Value LSR 1510-35A/B
Value LSR 1510-45A/B
 
AppearanceA transparent,B grey
 
Solid content
%
100
100
 
 
ViscosityY=10.0S-1
Pa.s
750
550
 
Cured
Properties
DIN 53479
Specific Gravity
 
1.13
1.13
 
DIN 53505
Shore A hardness
°A
35
35
 
DIN 53504
Tensile strength
Mpa
9.0
8.5
 
DIN 53504
Elongation at break
%
800
750
 
ASTM D 624B
Tear resistance
KN/m
30
30
 
D412
Tension set :Keeping 200% extension for 48 hrs at 50
%
3.0
3.0
 
D412
Tension set :Keeping 300% extension for 15 hrs at 120
%
8.0
8.0
 
GB/T1692-1992
Volume Resistivity
Ω.cm
1.9x1014
1015
 
GB/T1691-198
Dielectric constant (50Hz)
 
2.8
2.8
 
GB/T1691-198
Dissipation factor(50z)
 
0.0016
0.0016
 
GB/T6553-2003
Tracking Resistance
class
1A3.5
1A4.5
 
GB/T1695-2005
Dielectric Strength
KV/mm
26
26
 
9) Remarks           
    The viscosity is tested by NDJ-79#Rotary viscosimeter           
    Condition of productioncuring 10 minutes at140°C,curing 4hrs at 200°C
    GB is Chinese national standard
    These figures are for reference only, Please contact us for detail.