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Two-component Silicone sealant for Automotive Lamp RJ-M8200AB

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RJ-M8200: Two-component Silicone Sealant is designed for research and development of automobile headlights adhesive sealing silicone sealant, for most materials with good adhesion. 

Properties and Features

1. Two parts, neutral cure form an elastomeric rubber 

2. Stable performance from –55 ℃ to +180 ℃

3. Excellent unprimed adhesion to a wide range of materials such as metal, plastic, porcelain and glass

4. Easy to operate, suitable for flow-line production

5. Mixing ratio of 7~10:1 by weight of part A base to part B curing agent is recommended.

Technical index

Before curing

  Property  A  B
  Appearance  White  Black
  Density g/cm3  1.3±0.1  1.01±0.05
  Viscosity ,mPa·s  100000-150000  10000-30000
  Mixing ratio (weight ratio)10:1
  Tack-free time, min≤60

After curing

  Hardness shore, A≥30
  Tensile Strength, MPa≥1.6
  Elongation at Break%≥180
  Volatiles, %     ≤1.8 

Physical data in the above table is for reference only.


The waterproof adhesive and seal of the lights.

The adhesive and waterproof seal of the electrical and electronic and communications equipment 

The bonding and sealing of high temperature components on household appliances.

The waterproof seal of motor vehicles and vessels windshield 

The waterproof seal of other high-grade lamps.

Operation and safety

Surface Preparation:All surfaces must be clean and dry. All stress, static electricity, dust, grease, etc. should be removed. 

Adhesion: The gel glue gun has been pushed to clean the surface, so that distribution, if the temperature is low, the curing time will be extended.

The workplace should always be well ventilated;

The uncured sealant should not contact the eyes. If contact occurs, please flush with water and contact the doctor.

Please avoid prolonged contact with the skin, which may cause itching;

Keep out of reach of children.


The Part A of  RJ-M8200 is available in 200L drums (net 240kg), Part B in 20L plastic pails (net 18kg), available customer tailored.


Belong to the non-dangerous goods, please stored in a cool and dry place under 27℃.

Shelf life

12 months.