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PERMABOND UV670

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Permabond UV670 — UV/light-activated adhesive, Shore D 50-60.

Flexible, impact-resistant UV adhesive — for dynamically stressed glass-to-metal bonding.

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  • Color
  • Country of origin
  • Chemical group
  • Viscosity (adhesives)
  • Viscosity 20rpm
  • Specific gravity
  • Curing wavelength
  • Storage temperature (°C)
  • Tensile strength (ISO37)
  • Refractive index
  • Elongation at break (elasticity) (ISO37)
  • Hardness (Shore D)
  • Dielectric strength
  • Dielectric constant 1MHz at 25°C
  • Water absorption (ISO62) 2 hours in boiling water
  • Tensile strength (ASTM D-2095-69) glass/steel

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UV-curing metal, plastic, glass

 
General Terms and Conditions.

Shipping usually within 1 to 3 business days
(availability will be confirmed after ordering)

. Express logistics. Fast and reliable within Switzerland & Europe.

Shipping from Swiss warehouse within 24 hours. Batch certificate. Invoice within 30 days (B2B). Technical support.
Shipping & Delivery

Usually 1 to 3 working days

Availability will be confirmed after order receipt.

Express logistics within Switzerland & Europe.

General Terms and Conditions →

Product data

Internal reference: 49-670.FL

HS code: 3506.9190000

Internal reference: 49-670.FL
HS code: 3506.9190000

PERMABOND UV670
PERMABOND UV670
Permabond · Permabond Engineering Adhesives Ltd · SKU 49-670.FL

Permabond UV670 is a flexible, impact-resistant, UV-curing adhesive — designed for dynamically stressed glass-to-metal bonding and metallized plastics, with low hardness and high impact resistance.

With a Shore D hardness of 50–60, UV670 is more flexible than standard UV adhesives in the 600 series (60–75 Shore D). This flexibility buffers thermal expansion and contraction between glass and metal—important for components subject to temperature fluctuations.

The high impact strength (>80% elongation at break) and the medium viscosity of 2,000–3,000 mPa·s make UV670 a robust choice for industrial applications — even metallized plastic components can be reliably bonded.

APPLICATION PROFILE

Flexible, impact-resistant UV adhesive — its lower hardness (50–60 Shore D) makes UV670 the first choice for dynamically or thermally stressed glass-to-metal bonding. Also suitable for metallized plastics.

Permabond UV670 in figures
50–60
Shore D softer
>80 %
Elongation at break
Impact resistant
High impact resistance
1 s
@ 30 W/cm²

What makes Permabond UV670 stand out

Flexible
50–60 Shore D — buffers thermal stresses.
>80% elongation at break
High impact resistance.
Glass-to-metal bonding
Excellent adhesion.
Metallized plastics
Even coated components can be bonded.
Fast UV curing
1 second at 30 W/cm² optical fiber.
Medium viscosity
2,000–3,000 mPa·s — standard geometry.

What is Permabond UV670 used for?

Dynamically stressed glass-metal bonds
Impact and vibration resistant.
Metallized plastics
Coated components.
Components with temperature changes
Flexibility buffers thermal expansion.
Glass furniture with everyday wear and tear
Increased firing reserve.
Industrial glass bonding with robustness requirements
If UV620 were too brittle.

processing

1
Clean surfaces
Prepare bonding surfaces to be clean, dry, and free of grease — degrease with isopropanol or acetone. For aluminum/copper, lightly sand to remove the oxide layer. Test compatibility on plastics.
2
Apply adhesive thinly
Apply Permabond UV670 thinly and evenly – directly from the bottle or using a dispensing device. Keep the adhesive protected from light. Avoid air bubbles.
3
Adding and aligning components
Quickly and precisely assemble. When bonding glass, spread the adhesive into a thin film by applying pressure. Do not move components during UV curing.
4
Cure with UV light
Point the UV lamp at the adhesive gap. Curing time depends on the lamp power, wavelength, and light transmittance of the components — typically 1–5 seconds for a 30 W/cm² fiber optic system or 5–15 seconds for a 4 mW/cm² low-power lamp.
5
Full strength after UV irradiation
After complete UV curing, the components are immediately ready for handling. Final strength is achieved immediately after irradiation. For dual-cure products (UV + anaerobic), an additional 24 hours are required for complete anaerobic curing of the shaded areas.
Data sheets & safety data sheet
Full TDS and SDS in DE, EN, FR — view or download directly.
To the documents →

Recommended accessories

Permabond Cleaner A Aerosol
Spray cleaner for the rapid degreasing of bonding surfaces before applying UV adhesive — reliably removes oil, grease and release agents.
View product →
Permabond UV620 — glass standard
Optically clear glass-metal UV adhesive for high-quality glass furniture — the all-rounder of the UV range.
View product →
Permabond UV630 — Biocompatible plastic
UV adhesive for plastics (polycarbonate, acrylic) — biocompatible according to ISO 10993-5, long-wave curing 365–420 nm.
View product →
Permabond UV7141 — Dual-Cure UV+Anaerobic
UV + anaerobic dual curing for shaded areas — ceramic-coated glass, backlit mirrors, overlapping adhesive surfaces.
View product →

Important instructions

Not suitable for / Important notes
Store away from light. Test compatibility with thermoplastic substrates.
storage
Store at 5 to 25 °C and protect from direct sunlight. Curing begins under UV light — keep the bottle in the dark and open only under UV-blocked light.

Which Permabond UV adhesive is suitable for which application?

Permabond UV670 in direct comparison with related products of the UV series.

Permabond UV670
Current product		Permabond UV620 →Permabond UV675 →Permabond UV625 →
ApplicationFlexible, impact-resistant UV adhesive for glass-metalHarder, visually clearerLow viscosity clearVertical application
viscosity2,000–3,000 mPa·s @ 20 rpm2,200–2,900 mPa·s500–800 mPa·sgel
Substrate strength6–10 N/mm²9–10 N/mm²8–12 N/mm²6–10 N/mm²
Elongation at break>80 %>80 %>50 %>60 %
Topics & Application Areas
Key terms related to this product. Also useful for our search and filters.
UV-curing metal, plastic, glass

Technical data for PERMABOND UV670

All 19 product information 4 Performance at final strength 7 Physical properties 5 Curing values ​​1 Mechanical properties 1 Thermal properties 1
Product information
Manufacturer Permabond Engineering Adhesives Ltd
brand Permabond
Container 50 ml, 1 l
Country of origin Italy
Performance at final strength
Tensile strength (ISO37) 12 N/mm²
Refractive index >1,490
Elongation at break (elasticity) (ISO37) >80%
Dielectric strength 12 kV/mm
Dielectric constant 1MHz at 25°C 4
Water absorption (ISO62) 2 hours in boiling water <2.5%
Tensile strength (ASTM D-2095-69) glass/steel 6-10 N/mm²
Physical properties
Color colorless
Chemical group Methacrylic acid esters
Viscosity (adhesives) Medium viscosity 500 - 5000 mPas
Viscosity 20rpm 2000-3000
Specific gravity 1.1
Curing values
Curing wavelength 365 - 420 nm
Mechanical properties
Hardness (Shore D) 50-60
Thermal properties
Storage temperature (°C) 5-25

For binding values, please refer to the technical data sheet (TDS) in the "Documents" tab.

Documents and datasheets

Click on a document for a preview or the download icon for a direct download.

Technical Data Sheets (TDS) 3
Permabond UV670 - Technical Data Sheet DE.pdf
309 KB
Permabond UV670 - Technical Data Sheet EN.pdf
318 KB
Permabond UV670 - Technical Data Sheet FR.pdf
282 KB
Safety Data Sheets (SDS) 3
Permabond UV670 - Safety Data Sheet DE.pdf
502 KB
Permabond UV670 - Safety Data Sheet EN.pdf
480 KB
Permabond UV670 - Fiche de Sécurité FR.pdf
501 KB

Frequently asked questions about Permabond UV670

Practical application and design questions — answered by SILITECH.

Permabond UV670 is a methacrylic acid ester (UV-curing) adhesive with a viscosity of 2,000–3,000 mPa·s @ 20 rpm. It is a flexible, impact-resistant UV adhesive for glass-to-metal bonding—including metallized plastics. The adhesive cures upon irradiation with UV light in the spectral range of 365–400 nm—curing in seconds "on demand".

Permabond UV670 cures in the spectral range of 365–400 nm. Standard mercury vapor UV lamps, LED UV lamps with a suitable wavelength, or UV light guide systems are all suitable. For LED lamps, the maximum wavelength of the LED must be matched to the curing spectrum of the adhesive—we are happy to advise you on selecting the right lamp.

Permabond UV670 typically cures in: 7 s with a 4 mW/cm² low-power lamp; 2 s with a 100 mW/cm² LED lamp; 1 s with a 30 W/cm² UV light guide system. The exact curing time depends on the layer thickness and the light transmittance of the components.

Permabond UV670 bonds reliably to glass/steel: 6–10 N/mm². For thermoplastic substrates, we recommend testing compatibility before series production — release agents on injection-molded parts can impair adhesion.

Permabond UV670 is a flexible, impact-resistant UV adhesive for glass-to-metal bonding (2,000–3,000 mPa·s @ 20 rpm viscosity, >80% elongation at break). Permabond UV620 is an optically clear (2,200–2,900 mPa·s, >80% elongation at break) hardener.

When stored at 5 to 25 °C and protected from light, Permabond UV670 is stable until the printed expiration date. IMPORTANT: UV adhesives cure upon contact with light — always store the bottle in the dark and only open it briefly under UV-blocked light. Daylight-stable variants (e.g., UV675) can be used briefly under ambient light.

From the Permabond UV range, select according to substrate, viscosity, and special properties: Permabond UV670 (flexible, impact-resistant UV adhesive for glass-to-metal); Permabond UV620 (optically clear); Permabond UV675 (crystal clear); Permabond UV625 (thixotropic gel). For shadowed areas (where UV light does not fully reach the adhesive gap), a dual-cure variant such as Permabond UV7141 (UV + anaerobic) should be used.

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Product specifications

Product information
Container 50 ml or 1 l
Manufacturer Permabond Engineering Adhesives Ltd
brand Permabond
Country of origin Italy
Performance at final strength
Tensile strength (ISO37) 12 N/mm²
Refractive index >1,490
Elongation at break (elasticity) (ISO37) >80%
Dielectric strength 12 kV/mm
Dielectric constant 1MHz at 25°C 4
Water absorption (ISO62) 2 hours in boiling water <2.5%
Tensile strength (ASTM D-2095-69) glass/steel 6-10 N/mm²
Physical properties
Color colorless
Chemical group Methacrylic acid esters
Viscosity (adhesives) Medium viscosity 500 - 5000 mPas
Viscosity 20rpm 2000-3000
Specific gravity 1.1
Curing values
Curing wavelength 365 - 420 nm
Mechanical properties
Hardness (Shore D) 50-60
Thermal properties
Storage temperature (°C) 5-25
Keywords
Keywords
UV-curing metal, plastic, glass

Documents and datasheets

Safety Data Sheets (SDS) and Technical Data Sheets (TDS) are available for download: