KASTAR 284 Clear Siliconized Acrylic Sealant

Clear, Siliconized caulk

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Kastar284 Clear Siliconized Acrylic Sealant provides a waterproof and weatherproof seal, adhering tightly to interior and exterior surfaces, even to ceramic and glass substrates. Excellent for siding corner joints and caulking around windows, doors, skylights, vents, air ducts, and chimneys.


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Data sheet

Basic materialAcrylic dispersion
Specific Gravity (g/cm³)1.2
Shrinkage (mm)≤3
Tack free time (h)0.7
Elongation at break (%)150
Modulus adhesiveOK
Volume Change (%)40
Extrudability (ml/min)495
Elastic Recovery Ratio (%)80
Hypothermia Flexibility-20


  • Exterior or Interior use.
  • Waterproof and paintable.
  • Provides along lasting flexible steal.
  • Excellent adhesion to most construction materials, such as wood, masonry, brick and plaster.
  • Translucent Color

Basic used

  • Filling gaps in walls, balustrades, and sills.
  • Connecting joints in pasterboard.
  • Sealing around window and door frames.
  • Sealing of aerated concrete
  • Sealing of low-movement construction joints between brick concrete, and timber.




280ml/300ml Plastic cartridge, 24pcs/ctn.

Storage and shelf life

12 months stored in a shaded, cool, and well-ventilated place under 27℃.


  1. Do not put it within the kid’s reach, non-toxic after solidifies completely, avoid eye contact before solidification, if touches the eye carelessly. use massive water to wash, and if serious go to see a doctor.
  2. When operating, must hold the glue steadily, cannot separate, guards against mixes in the air and forming bubbles, and affects the sealing effect.
  3. After the operation, take off the cap mouth immediately and close the packing cover tightly to prevent moisture enter and cause solidification. Wipe off the glue left at the glue mouth.