|
1.
Description:
Room
temperature vulcanization silicon rubber series
adhesives are one component, non-solvent RTV silicon
rubber. The product after curing has good elasticity,
good insulation sealing, and high temperature resistance
properties.
2. Chemical
composition
Ortho-hydroxy
poly dimethyl siloxane, silicon series coupling agent
|
 |
3. Major chemical
structure:
CH3
|
HO-[-Si-O-]n
–H
|
CH3
4. Properties & Application
|
Name |
WR-703 |
WR-704 |
WR-705
|
WL-705L |
WR-706 |
WR-708 |
|
Appearance
|
|
Milky viscose liquid |
Colorless transparent viscose liquid |
Colorless transparent flowing liquid
|
Milky viscose liquid |
White
non-flowing liquid |
|
Surface
Drying
Time（25°C） |
30min |
|
|
30min |
30min |
30min |
|
Tensile
Strength
Kg/cm2 |
>12 |
>10 |
>5 |
>5 |
>20 |
>8 |
|
Temperature
Resistance
Range（°C） |
-60~150 |
-60~250 |
-60~250 |
-60~250 |
-60~250 |
-60~200 |
|
Aging
Resistance |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
|
Medium
Resistance |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
|
Voltage
Resistance |
>16kv/mm |
>14kv/mm |
>15kv/mm |
>15kv/mm |
>14kv/mm |
>14kv/mm |
|
Application |
Potting
for wire cables, Water sealing for instruments,
apparatus; Meter box adhesion; Sealing for
electronic elements |
Electric
heating elements ends sealing, Electric plugs
potting;
Adhesion
and sealing for instrument and apparatus |
Transmitter sealing; Potting for electric elements;
Electric
joint moisture proof protection;
Silicon
controlled surface protection |
Transmitter sealing; Potting for electric elements;
Electric
joint moisture proof protection;
Silicon
controlled surface protection |
Machine
tool sealing;
Motorcycle magnetic cylinder adhesion |
Refrigerator sealing;
Advertising Board adhesion;
Ship
sealing;
Electric
elements anti-vibration fixing
|
Besides the above
typical application, these series products also have excellent
adhesion to all kinds of metal, glasses, cement, ceramics,
plastics, nylon, cloths, and bamboo or wood products
5. Chemical
Resistance Property
|
Days after
Weight
Change%
Dipping
liquid |
|
|
30 |
|
City tap
water |
0.3 |
0.9 |
1.6 |
|
5%NaCl
solution |
0.2 |
0.7 |
1.5 |
|
10%NaOH
solution |
0.2 |
0.7 |
1.2 |
|
5%H2SO4 |
0.4 |
1.2 |
2.0 |
|
5%HCl
solution |
0.3 |
0.8 |
1.5 |
|
Kerosene |
0.5 |
0.8 |
1.2 |
6.Application
Method:
Dust and oil on the
surface should be cleaned by using cloth rubbing or organic
solvents, prior to use;
the adhesive needs
to be uniformly coated on the applied surface or sealing ends
and tightly connect together.
Air remained inside
the tube should be squeezed out and the tube cap needs to be
tightly closed to protect from adhesive curing.
Storage
and Transportation
1.The product
belongs to non-dangerous material. It is non-toxic,
non-corrosion, non-inflammable,.
Storage and
transportation follow regular chemicals regulation. The storage
period of time see packaging instruction.
2. Product kept
tight sealing after use.
WR-70 Series RTV
Silicon Rubber Gel is non-toxic, but has slightly irritation to
skin and eyes.
Using gasoline etc.
hydrocarbon solvents can clean non-cured silicon rubber.
8.Storage and
Packaging:
1. One year shelf
life stored at room temperature in sealing condition.
2. 45 or 110 grams
in flexible metal tube.
*Remarks:
The above technical
data are typical product data at 70% humidity and 25 degree C
for customer reference only.
