LOCTITE® SI 5248

Known as LOCTITE 5248

Features and Benefits

This versatile 1-part light-curing silicone material is used for the assembly, potting and coating of medical devices, especially those comprised of silicone or requiring high flexibility. Combined with a secondary moisture cure mechanism it allows for shadow curing.
LOCTITE® SI 5248 is a translucent, straw-colored, thixotropic light-curing acetoxy silicone sealant. It has deep light cure capability – both ultraviolet and visible – combined with a secondary moisture cure mechanism for shadow curing. It combines high strength with high flexibility on a variety of substrates: it is suited to plastics and highly suited to glass, ceramics and metals. It fluoresces under UV light – great for quality control – and has a tack-free time >30 secs and a fixturing time also >30 secs. ISO 10993 quality tested.
  • Highly flexible sealant/adhesive
  • Secondary moisture cure for shadow curing
  • Extremely versatile: well suited to glass, ceramics and metals
  • 1-part: no mixing required
  • ISO-10993 biocompatible
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Technical Information

Chemical basis / base Alkoxy silicone
Color Straw, Translucent
Key characteristics Secondary cure system: atmosphere, Wavelength for cure: UV
Specific gravity, @ 25.0 °C 1.05
Viscosity, Brookfield, @ 25.0 °C Spindle 6, speed 2.5 rpm 50000.0 - 80000.0 mPa·s (cP)