C -100A/B Platinum cross-linking agent

 

C-100A and C-100B belongs to platinum addition type cross linking agent and can be approved by FDA after cured, also characterized by non-toxic, odourless, high transparent and well anti-yellowing.The materials can be cured again if low-molecular -weight is strict by request.

 

This agent are mainly applied to Food Grade and Medical Grade products, such as nipples, cake mold, silicone cookwares, medical silicone tube and so on, also can be used for extrusion products and mobile phone keypad.

 

Component:

A: Platinum catalyst                 B: Organosilicon polymer

C: Silicone cross-linking agent       D: Vulcanization retarders

 

Physical Properties: (Tested by KE-951U Gel)

Appearance:                       Milk white or semitransparent light yellow Specific Gravity(23°C)                                         0.9~1.0 Hardness(ShoreA)                                                 49~51 Tensile Strength (Mpa)                                             10~13 Elongation at Break(%)                                           500~530 Cracking Resistance(KN/m)                                         24~27 Compression Set %(100°C/22h)                                       ≤5

 

Notes:

1. Avoid to contact with nitrogen, phosphorus, sulfur and heavy metal materials,they will cause dead materials.

2. The cross linking agent is added by weight to Part B and should be thoroughly mixed into Part A after adding Part B,the order is important. A and B can not be mixed together.

3. The temperature of mixing machine which used for mixing silicone with this agent can not be higher than 45°C.Please add this agent after being cold.

4. Thoroughly vulcanized materials by this agent must be used up within two days.

5. Pleas choose the suitable raw materials for hot air vulcanization, bad raw materials will cause bubbles.

 

Method of Application:

 

Type one: Extrusion or Injection Process

1. For High Tensile Silicone Materials(filled with gaseous phase white carbon black)

Application ratio:

C-100B                         2.0~2.5%

C-100A                         0.5~0.6%

 

Curing condition: IR(6meters),constant temperature ±5°C.

First curing: IR curing at 190~200°C for 40~60.

Finished curing: After first curing, it should be cured again as below conditions.

 

Curing temperature	155~165°C	165~175°C	Over 175°C
Curing time	3~5minutes	3minutes	2minutes

 

 

2. For Normal Silicone Material

 

Application ratio:

C-100B                             1.5~2.0%

C-100A                             0.5~0.6%

Curing condition:IR(6meters),constant temperature ±5°C.

First curing: IR curing at 190~200°C for 40~60.

Finished curing:After first curing, it should be cured again as below conditions.

 

Curing temperature	80~90°C	95~110°C	115~135°C
Curing time	7 minutes	5 minutes	4 minutes

 

 

Type two: Molding Process

Application ratio:

C-100B                               1.0~1.5%

C-100A                               0.5%

Curing temperature: 115~135°C(200~300seconds)

Curing time:Can be adjusted with the thickness and type of the silicone products

 

Packing:

1KG/Bottle

 

Shelf Life:

     4months at room temperature without open.

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