Permabond UV639 thicker gap filling soft flexibile UV glue excellent for most plastics including acrylic, PET, polycarbonate PC

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SKU: PBND_UV639_050ML_BTL
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Regular price $ 39.99 USD
($ 0.79 USD per Milliliter)
7 units available
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PERMABOND UV639 UV-curing adhesive is a UV-curing adhesive developed for use on plastics. It has superb adhesion to acrylic, polycarbonate and PETG. This adhesive can also be used to bond glass, metals and other materials. UV639 cures to give a colourless bond so is ideal for applications where aesthetic appearance is vitally important.

While it performs particularly well on plastics, this adhesive can also be used to bond glass, metals, and other materials.

UV639 cures to form colourless bonds, so it is ideal for applications where aesthetic appearance is vitally important, including shop fittings, acrylic screens in supermarkets, offices, banks and retail, point of sale items, furniture and architectural design applications.

Features:

  • Rapid cure in seconds under UV light
  • Excellent for acrylic, polycarbonate, PET and PETG
  • Thicker slower flowing gel for vertical and gap filling
  • Crystal clear, invisible finish - non yellowing
  • Excellent thermal & moisture resistance
  • High strength
  • High elongation
  • No need to drill for fixtures and fittings means no risk of stress cracking
  • Fixtures & screws can be eliminated in some applications meaning easier cleaning and disinfection

Physical Properties of Uncured Adhesive

Chemical Composition Urethane methacrylate
Viscosity @ 25°C

20 rpm: 1200 to 1800 mPa.s (cP)

Specific Gravity 1.1

Performance Characteristics

UV Curing Wavelength

365 - 420 nm

UV Curing Time (by strength of light)

Low power 4mW/cm² battery lamp: 10 secs
LED 100mW/cm² lamp: 4 secs
UV light guide 30W/cm²: 2 sec

Tensile Strength

2900psi (20 N/mm^2)

Shear Strength

Polycarbonate >8 N/mm² (>1160 psi)*
Acrylic >6 N/mm² (>870 psi)*
PET-G >7 N/mm² (>1015 psi)*
PET >5 N/mm² (>725 psi)*

Glass to Steel: 900psi to 1000psi 6 to 7 N/mm²)

Temperature Resistance

212f (100C) 60% strength

302f (150C) 18% strength

Appearance

High Clarity, Colorless, Optically Clear, Transparent

Elongation (ISO37)

>220%

Hardness (ISO868)

35-45 Shore D


*The cure time depends on the power of the UV lamp, its spectral output, the distance between the lamp and the components, and the transmission characteristics of the substrates.
**LED UV lamps have a narrow range of spectral output. It is important to check suitability with Permabond in order to match the LED lamp’s peak wavelength with that of the adhesive’s photoinitiator to ensure optimal adhesive cure.