RTV Silicone Sealant Material SFTT


  • The sealant may experience slight yellowing during storage, which does not affect its product properties.

Technical Parameters:

  • Type: One-Component Room Temperature Vulcanizing Silicone Sealant
  • Color: White/Black Paste
  • Curing: Exposure to atmospheric moisture forms a silicone elastomer
  • Product Features:
    • Moisture Curing
    • Non-corrosive to most substrates
    • Excellent adhesion to various substrates
    • Outstanding dielectric properties and weather resistance
    • Stable and flexible from -40°C to +180°C
    • Complies with RoHS

Typical Applications:

  • PCB board component fixing
  • Bonding and fixing
  • Moisture-proof seal

Operating Instructions:

  1. Clean Surface: Ensure the surface of the bonding substrate is free from dust, rust, and oil.
  2. Gluing: Squeeze the sealant onto the cleaned surface.
  3. Curing: Place the glued part in the air. After skin formation, curing continues inward from the surface. Under 25°C and 55% relative humidity conditions, it cures to a depth of 2 to 4mm in 24 hours. The curing depth gradually increases over time.
  4. Storage: The unused sealant should be tightly sealed. Before reusing, remove any crust at the nozzle without affecting normal use. During storage, a small amount of solidification at the nozzle may occur, but it can be used normally after removal without affecting product properties.

Storage Conditions:

  • Store in a cool and dry place below 35°C.
  • Shelf Life: 6 months


  1. Keep away from children.
  2. It is recommended to use the sealant in a well-ventilated area to reduce odor.
  3. If it accidentally comes into contact with the skin or eyes, wipe them clean immediately, rinse with water, and seek medical advice.
  4. For safety information, please refer to the Material Safety Data Sheet (MSDS).

Packaging Specifications:

  • 100ml / piece, 100 pieces / Carton
  • 300ml / piece, 24 pieces / Carton
  • 2600ml / piece, 4 pieces / Carton

Special Note:

The data provided in this manual were obtained under laboratory conditions. Due to variations in usage environments, users should use these data and conditions for analysis and testing. Vinisili does not guarantee the performance of the product and its use under specific operating conditions, and does not assume liability for direct, indirect, or accidental losses. If users encounter issues during use, they can contact the Vinisili technical service department for assistance.

(General Properties at 25±2℃, 60±5%RH)
Unit Value
Appearance / White/Black Paste
Density g/cm3 1.40±0.1
Tack-free Time min ≤20
Extrusion Rate g/15s 80-120
Hardness (Shore A) Shore A 40±5
Tensile Strength MPa ≥1.5
Elongation at break % ≥150
Tear Strength KN/m ≥4.5
Dielectric Strength kV/mm ≥20
Dielectric Constant / ≥2.8
Volume Resistivity Ω·cm ≥1×1014
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