Resin - Loctite 349 Glass To Glass And Glass To Metal Adhesive

Loctite 349 Glass to Glass and Glass to Metal Adhesive
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349 Impruv Optically Clear UV Adhesive - 1.69oz. Bottle

Loctite 349 Impruv is an acrylic, high viscosity, UV light cure adhesive, which bonds and seals glass to glass or glass to metal components such as precision optical instruments/devices, furniture and industrial devices.

When exposed to ultraviolet (UV) light, these adhesives harden in seconds. These products are VOC compliant in all 50 states.

Typical Usage: The electrical properties of this product also make it suitable for potting and tacking applications.

Other Known Part Numbers:
  • 34931

For discounted case pricing, this item must be purchased in multiples of 10.

Loctite 349 Impruv - 50mL Adhesive TDS (PDF)

If you are looking for a more readily available and more economic solution, we recommend the SPDI Litebond 4123


  • Temperature Range: -65 degrees to 266 degrees F
  • Color: Transparent to pale yellow
  • Size: 50ml
  • Substrates: Glass to Glass and Glass to Metal

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Ask a Question
  • i need a clear glue for glass to metal the metal are part of the wood legs (5) the glass is a dining room 7ft glass top

    The Loctite 349 will work for your application: Glass to Glass and Glass to Metal Adhesive

  • I have a glass table top that needs a glass to metal application, but it must hold stress weight of at least 10 lbs.

    Yes, the Loctite 349 light cure UV adhesive can hold a stress weight of at least 10 lbs. and is ideal for your application.

  • Hi, The jar is not broken apart but with broke line, can this glue help to make it not leak?

    Jenny, it depends on the wall thickness of the jar. Generally, Loctite recommends using adhesives at a viscosity of 100cP or less for wicking and sealing lines in glass. The Loctite 349 adhesive has a viscosity of 10000cP, which is pretty high for what you are trying to do. However, this UV adhesive will work for your specific application. Please just make sure the surfaces are clean before applying the adhesive.

  • Will this adhesive change color over time?

    No, the appearance of this liquid ranges from transparent colorless to pale yellow.

  • Does this product expire? Mine isn't working as well as it did when I first bought it 5 years ago.

    Yes there is a 12-18 month shelf life on most Loctite products.

  • what Uv light will work with this? I am looking at a 120 volt, 60Hz, 0.20 amps, long wave 365nm.

    For a full tack-free cure you need 100 mW/cm², measured @ 365 nm for 5 to 10 seconds,
    For more specifics on curing times and power needed please refer to the product data sheet: