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MF889A Silicone Stone Weatherproofing Sealant

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MF889A Silicone Stone Weatherproofing Sealant, a one-part, RTV, neutral-cure, architectural grade sealant, is designed specifically for the assembly of stone and the weatherproofing of stone, glass and most other construction substrates without primer. It easily extrudes in any weather and cure at ambient temperature by reaction with moisture in the air to form a durable, flexible silicone rubber seal.
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Introduction:

  One component, neutral cured, high elasticity and medium modulus.

  Excellent resistance to weather aging, water, low and high temperature.

  Special for the assembly of stone and the weatherproofing of stone curtain wall.

  Directly extruded in the temperature range of 10~50℃. Movement capability: ±25%.

  Excellent adhesion to most building materials without primer even in the range of -60~180℃.

  No corrosion to porous building materials such as granite and marble; no pollution to the environment.

  Purposes:

  Mainly applied in the common assembly and weatherproofing sealing. It is suitable for filling the seam and joints, which can produce good adhesion.

  Properties:

  Consistent with standards: GB/T14683, JC/T883 & ASTM C920

  Methods of Application:

  1. The surface must be clean, dry and free of any traces of grease or dust.

  2. It can be used directly in the temperature 10~50℃.

  3. Masking tape should be used in case of contamination and be removed after using.

  Storage:

  The shelf life will be 12 months stored in cool, dry and ventilated places below 27℃.

  Package:

  Cartridge Package: 300ml/piece, 25pcs/carton

  Sausage Package: 592ml/piece, 20pcs/carton.

  Transportation:

  MF889A is non-dangerous, can be transported by train, automobile, ship and plane.

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