Besil 9333 Semi-flowable one-component, non-corrosive RTV silicone sealant

Type

Micro-flowable, one-part, moisture-cure RTV silicones

Physical Form

cure to flexible elastomers

Special Properties

  • Room-temperature;
  • Resist humidity and other harsh environments;
  • Good dielectric properties; self-priming adhesion;
  • Low stress

FEATURES

  • BESIL 9333 is a one-component, non-corrosive silicone adhesive sealant that cures on exposure bymoisture to form an elastic silicone rubber.
  • BESIL 9333 is Semi-flowableand has excellent corrosion-free adhesion to metals, including copper, plastics, ceramics, glass, etc, without the use of primers.
  • Excellent high and low temperature resistance: from –60℃ to 250℃.
  • Excellent weather ability, water and chemical resistance
  • Excellent electrical insulation properties.
  • Simple and easy-to-use one-component system.
TYPICAL UNCURED PROPERTIES
 Besil 9333
Appearance White
Viscosity(cp), GB/T 10247-2008 Micro-flowable
Specific Gravity(g/cm3), GB/T 15223-1994 1.48±0.05
25℃Tack-free Time(min), GB/T13477-2002 5-10
TYPICAL CURED PROPERTIES (7 DAYS @ 25℃/55%RH)
Hardness, shore A,GB/T 531-2008 40±5
Tensile strength (Mpa), GB/T 528-2009 1.5±0.2
Elongation(%), GB/T 528-2009 >120
Thermal conductive rate, GB/T10297-1998 0.58
Shear strength, GB/T 7124-2008 >1.0
ELECTRICAL PROPERTIES (CURED)
Dielectric strength (kv/mm), GB/T 1695-2005 >20
Dielectric constant (@1MHz), GB/T 1693-2007 2.9
Dielectric loss (@1MHz), GB/T 1693-2007 0.09
Volume resistivity (Ω·cm), GB/T 1692-92 2×1014
  • Electricity
  • Solar
  • Equipment
  • House-hold
  • LED lighting
  • Power supplies
  • Mould
  • Semi-conductor
  • Clean the surface thoroughly, keep dry and loose debris.
  • Clean with a solvent.
  • Cut the tip off cartridge and attach nozzle to cartridge. Full the joint completely.
  • Sealant skins in 20 minutes, is touched dry in 15 minutes and cures in 1-2 days depending on application.
  • Full bond strength is achieved in 7 days.

How to apply

  • Apply a bead of Besil 9339 Adhesive/Sealant (see Handling Precautions) to one of the prepared surfaces, then quickly cover with the other substrate to be bonded.
  • On exposure to moisture, the freshly applied material will “skin-over” in about 15 minutes at room temperature and 50% relative humidity. Any tooling should be completed before this skin forms. The surface is easily tooled with a spatula. The adhesive/sealant will be tack-free in approximately 20 minutes.

Cure time

After skin formation cure continues inward from the surface. In 24 hours (at room temperature and 50% relative humidity) Besil 9333 Adhesive/Sealant will cure to a depthof about 3mm. Very deep sections, especially when access to atmospheric moisture is restricted, will take longer to cure completely. Cure time is extended at lower humidity levels. Before handling and packaging bonded components, users are advised to wait a sufficiently long time to ensure that the integrity of the adhesive seal is not affected. This will depend on many factors and should be determined by the user for each specific application.

[auth-download url=”https://beginor-chemical.com/wp-content/uploads/2019/03/TDS-of-BESIL-9333-Flame-retardant-silicone-adhesive.pdf” title=”TDS Download BeSil 9333″]

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