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Self-adhesive Liquid Silicone Rubber

The material is a two-component, semi transparent self-adhesive addition liquid silicone rubber for injection or molding process. Organic plastic parts can be adhered on it, but metal mould will be demoulded from it. It is easy to dye and has good adhesive with PC, PET, TPU based plastics. It has the advantages of fast vulcanizing, excellent mechanical performance, especially suitable for producing high strength silicone rubber and plastic containing compound materials.

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Category: Self-adhesive LSR
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Application Field Use Direction Performance Evaluation Storage Shelf Life Package Handling Precautions Safety Precautions

  • Applications of Self-adhesive Liquid Silicone Rubber

    It is suitable for one step forming products contain liquid silicone rubber, PC which used in cell phone and other electronics.

  • Use Direction of Self-adhesive Liquid Silicone Rubber

    • Mix ratio: component A: component B is 100 parts :1 parts.

    • Component A and B are mixed according to weight ratio of 1:1 by auto mixer, then the mixed rubber material is injected into mold until fully filled. Also can be manually mixed and poured into mold for molding.

    • Suggested curing conditions: 120℃/180-240s (for product thickness of 2mm).

    • The press molding condition can be adjusted according to the dimension of product.

  • Performance Evaluation of Self-adhesive Liquid Silicone Rubber

    Test StandardsPC/PET/PBT
    BQ-7133A/BBQ-7143A/BBQ-7153A/BBQ-7163A/BBQ-7173A/B
    GB/T10247690/10001300/14502210/36801672/27848000/12000
    GB/T123325/5523/4033/6432/7024/69
    GB/T5331.11.121.131.131.14
    GB/T5313140526068
    GB/T52877.5887.5
    GB/T528500450400350310


    Material/ModelUnitTest StandardsPA6/PA66/PPA
    BQ-7730A/BBQ-7740A/BBQ-7750A/BBQ-7760A/BBQ-7770A/B
    Viscosity A/BPa·sGB/T102471500/35002000/61001000/28002500/72002780/10000
    Curing condition T10/T90130℃/sGB/T123322/5525/6933/7026/8023/60
    Gravityg·cm-3GB/T5331.101.111.121.141.15
    HardnessTypeAGB/T5313240486168
    Tensile strengthMpaGB/T5286.57.07.588
    Elongation%GB/T528500450400350300


    Material/ModelUnitTest StandardsPA6/PA66 add 0-20%GF
    BQ-7740A/BBQ-7750A/BBQ-7760A/BBQ-7770A/B
    Viscosity A/BPa·sGB/T102472000/61001000/28002500/72002780/10000
    Curing condition T10/T90130℃/sGB/T123325/6933/7026/8023/60
    Gravityg·cm-3GB/T5331.111.121.141.15
    HardnessTypeAGB/T53140486168
    Tensile strengthMpaGB/T5286.647.37.57.8
    Elongation%GB/T528600450400350
    Before use, please do surface treatment of metal molds (Teflon) to avoid sticking molds.


    Material/ModelUnitTest StandardsMetal/stainless steel
    BQ-7540A/BBQ-7550A/BBQ-7560A/B
    Viscosity A/BPa·sGB/T102472600/51002700/61003500/7000
    Curing condition T10/T90130℃/sGB/T123330/6835/7027/65
    Gravityg·cm-3GB/T5331.111.121.13
    HardnessTypeAGB/T531415061
    Tensile strengthMpaGB/T5286.67.37.5
    Elongation%GB/T528500400300
    Before use, please do surface treatment of metal molds (Teflon) to avoid sticking molds.


    Material/ModelUnitTest StandardsGlass
    BQ-7240A/BBQ-7250A/BBQ-7260A/B
    Viscosity A/BPa·sGB/T102471500/43002000/35004000/8000
    Curing condition T10/T90130℃/sGB/T123330/7535/8030/75
    Gravityg·cm-3GB/T5331.11.121.13
    HardnessTypeAGB/T531385060
    Tensile strengthMpaGB/T5286.757.67.2
    Elongation%GB/T528450400300
    Before use, please do surface treatment of metal molds (Teflon) to avoid sticking molds.


  • Storage of Self-adhesive Liquid Silicone Rubber

    • Stored in cool, dry and ventilated place.

    • Environmental temperature below 37℃.

  • Shelf Life of Self-adhesive Liquid Silicone Rubber

    3 months from production date and overdue one can be used after qualified.

  • Package of Self-adhesive Liquid Silicone Rubber

    20KG/ barrel, 200KG/ barrel.

  • Handling Precautions of Self-adhesive Liquid Silicone Rubber

    • To avoid processing issue caused by partial agglomeration from mixing of A and B. Please do not mix tools for agent A and agent B, or use clean tools.

    • The fully mixed A/B is allowed to stand for 3days with no property change if stored under condition of temperature below 25C.

    • In order to not cause vulcanizing issue, please avoid contacting with N, S, P, Sn containing compounds while handling.

    • The best ratio of A:B is 1:1. Wrong ratio will cause property issues to the final products.

    • To avoid affecting the viscosity strength, you’d better clean the plastic material as PC, ect which need to compound by alcohol before processing.

    • The viscosity of formed products will be better when post cure it at temperature of 100℃ for more than 60 minutes.

  • Safety Precautions of Self-adhesive Liquid Silicone Rubber

    • Wear personal protect equipment to avoid burning while processing. Do not eat.

    • Handle with care, details refer to MSDS. In addition, please follow safety regulation of country or local government.

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