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PERMABOND UV632
UV-curing adhesive (urethane methacrylate) for plastics, cures colorless; for plastics with very good adhesion to acrylic, also for glass.
Viscosity 200–400 mPa·s; setting time acrylic 10 s at 4 mW/cm² (365–420 nm); Shore D 55–75
Low-viscosity urethane methacrylate UV adhesive — toughened for tight tolerance plastic fits.
Documents
HS Code:
3506.9190000
Permabond UV632 is the low-viscosity urethane methacrylate variant of the UV plastics range — combining wicking ability with toughened strength for tight tolerance fits with dynamic loading.
With a viscosity of 200–400 mPa·s, UV632 is low-viscosity and can flow into tightly toleranced plastic fits via capillary action. The urethane methacrylate chemistry provides higher elongation at break and impact strength than pure methacrylate UV adhesives.
Polycarbonate affinity leads to substrate failure above 7 N/mm². Reliable bonding of PET and acrylic is also possible. Long-wavelength curing (365–420 nm) allows bonding of UV-stabilized substrates.
Low-viscosity urethane methacrylate variant — combines the wicking properties of UV630 with the impact resistance of urethane chemistry. Ideal for tight-tolerance plastic fits under dynamic loads.
What distinguishes Permabond UV632
What is Permabond UV632 used for?
Processing
Recommended accessories
Important Notes
Which Permabond UV adhesive for which application?
Permabond UV632 in direct comparison with related products of the UV series.
Permabond UV632 Current Product | Permabond UV630 → | Permabond UV648 → | Permabond UV639 → | |
|---|---|---|---|---|
| Application | UV adhesive for plastics — low viscosity urethane methacrylate | Methacrylate, biocompatible | High-viscosity variant | Maximum elongation at break |
| Viscosity | 200–400 mPa·s @ 20 rpm | 250 mPa·s | 20,000–40,000 mPa·s | 1,300 mPa·s |
| Substrate Strength | >7 N/mm² (substrate failure) | Polycarbonate | Polycarbonate | Acrylic/PETG |
| Elongation at break | >70 % | 110 % | >70 % | >220 % |
Technical data for PERMABOND UV632
| Product Information | |
|---|---|
| Manufacturer | Permabond Engineering Adhesives Ltd |
| Brand | Permabond |
| Container | 50 ml, 1 l, 2 l |
| Country of origin | Italy |
| UFI (Unique Formula Identifier) | NUF1-701W-900P-W8CD |
| Performance at Full Cure | |
|---|---|
| Tensile strength (ISO37) | 13 N/mm² |
| Refractive index | >1,490 |
| Elongation at break (elasticity) (ISO37) | >70% |
| Dielectric Strength | 25-30 KV/mm |
| Dielectric constant 1MHz at 25°C | 4 |
| Water absorption (ISO62) 2 hrs in boiling water | <3,5% |
| Shear strength polycarbonate | >7 N/mm² |
| Physical Properties | |
|---|---|
| Color | colorless |
| Chemical group | Urethane methacrylate |
| Viscosity (adhesives) | Low viscosity <500 MPas |
| Viscosity at 20 rpm | 200-400 |
| Specific Gravity | 1.1 |
| Curing values | |
|---|---|
| Curing Wavelength | 365 - 420 nm |
| Mechanical properties | |
|---|---|
| Hardness (Shore D) | 55-75 |
| Shear strength ISO 4587 in N/mm² | |
|---|---|
| Acrylic | >3 N/mm² |
| PET | >4 N/mm² |
| Thermal Properties | |
|---|---|
| Operating temperature (°C) | -55 to +120 |
| Storage Temperature (°C) | 5-25 |
Please refer to the technical data sheet (TDS) in the "Documents" tab for binding values.
Documents and data sheets
Click on a document for the preview or the download icon for direct download.
Technical Data Sheets (TDS) 3
Frequently asked questions about Permabond UV632
Practical application and design questions — answered by SILITECH.
Permabond UV632 is a urethane methacrylate (UV-curing, long-wavelength) adhesive with a viscosity of 200–400 mPa·s @ 20 rpm. This low-viscosity urethane methacrylate UV adhesive is toughened and elasticized for tight-tolerance plastic fits. The adhesive cures upon irradiation with UV light in the spectral range of 365–420 nm—curing in seconds, "on demand.".
Permabond UV632 cures in the spectral range of 365–420 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.
The UV curing of Permabond UV632 depends on the lamp power, wavelength, and light transmittance of the components. Typical curing times range from seconds to a few minutes.
Permabond UV632 bonds reliably to: Polycarbonate: >7 N/mm² (substrate failure); Acrylic: >3 N/mm²; PET: >4 N/mm². For thermoplastic substrates, we recommend testing compatibility before series production — release agents on injection-molded parts can impair adhesion.
Permabond UV632 is a UV adhesive for plastics — low-viscosity urethane methacrylate (200–400 mPa·s @ 20 rpm viscosity, >70% elongation at break). Permabond UV630 is a standard low-viscosity (250 mPa·s, 110% elongation at break) — methacrylate, biocompatible.
When stored at 5 to 25 °C and protected from light, Permabond UV632 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 UV632 (UV adhesive for plastics — low-viscosity urethane methacrylate); Permabond UV630 (standard low-viscosity); Permabond UV648 (high-viscosity urethane); Permabond UV639 (highly elastic). 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 or 2 l |
| Manufacturer | Permabond Engineering Adhesives Ltd |
| Brand | Permabond |
| Country of origin | Italy |
| UFI (Unique Formula Identifier) | NUF1-701W-900P-W8CD |
| Performance at Full Cure | |
|---|---|
| Tensile strength (ISO37) | 13 N/mm² |
| Refractive index | >1,490 |
| Elongation at break (elasticity) (ISO37) | >70% |
| Dielectric Strength | 25-30 KV/mm |
| Dielectric constant 1MHz at 25°C | 4 |
| Water absorption (ISO62) 2 hrs in boiling water | <3,5% |
| Shear strength polycarbonate | >7 N/mm² |
| Physical Properties | |
|---|---|
| Color | colorless |
| Chemical group | Urethane methacrylate |
| Viscosity (adhesives) | Low viscosity <500 MPas |
| Viscosity at 20 rpm | 200-400 |
| Specific Gravity | 1.1 |
| Curing values | |
|---|---|
| Curing Wavelength | 365 - 420 nm |
| Mechanical properties | |
|---|---|
| Hardness (Shore D) | 55-75 |
| Shear strength ISO 4587 in N/mm² | |
|---|---|
| Acrylic | >3 N/mm² |
| PET | >4 N/mm² |
| Thermal Properties | |
|---|---|
| Operating temperature (°C) | -55 to +120 |
| Storage Temperature (°C) | 5-25 |
| Keywords | |
|---|---|
| Keywords | |
Documents and data sheets
Safety Data Sheets (SDS) and Technical Data Sheets (TDS) for download:
- Permabond UV632 - Fiche Technique FR.pdf (282 KB)
- Permabond UV632 - Fiche de Sécurité FR.pdf (479 KB)
- Permabond UV632 - Safety Data Sheet EN.pdf (475 KB)
- Permabond UV632 - Safety Data Sheet DE.pdf (480 KB)
- Permabond UV632 - Technical Data Sheet EN.pdf (318 KB)
- Permabond UV632 - Technical Data Sheet DE.pdf (307 KB)