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Optical
Epoxy Adhesive
- High optical clarity, water white
- Excellent transmission down to 300 nm
- Low viscosity
- Long pot life
- Room or low temperature cure
Description
Opti-tec 5012 is a two component, low viscosity epoxy with very high optical
clarity. It has a long pot life and can be cured at room temperature or at
80°C
for 90 minutes. Opti-tec 5012 is designed for potting, encapsulation and
adhesion of components where high optical clarity, good wetting and low viscosity
are important.
Opti-tec 5012 can be used for bonding glass, quartz, metal and many plastics. It finds uses in assembly and repair of glass items where a clear adhesive is required.
Applications
- Optical assembly, optical filters, lenses, prisms
- Glass bonding
- Plastic & glass fibre optics
- Opto-electronics, photonics, LED
- Optical encapsulation & glob topping, casting, potting
- Repair of glass, wood, ceramic
- Potting or encapsulation where high optical clarity is required: geology samples, relics and artefacts, tissue samples
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| Opti-tec OPT 5012 is used for bonding glass in art applications. Pier Box with Blue Gold Insert is by Tessa Clegg. |
Features
- OPT 5012 is a water white, clear adhesive with a viscosity of 500 cps.
- OPT 5012 has a long pot life after mixing and cures within 48 hours at room temperature. Cure can be achieved in 90 minutes at 80°C.
- OPT 5012 has high surface energy. This and its low viscosity allows it to readily wet and wick between surfaces. It develops strong adhesion to most materials used in optics, including metals, ceramics, glass and most plastics.
- OPT 5012 has good impact and thermal shock resistance, with low internal stresses due to low shrinkage on cure.
- OPT 5012 is a hard, glass-like material after cure and can be polished.
- OPT 5012 has good chemical and moisture resistance with a very low exotherm, suitable for sensitive potting and encapsulation applications.
- OPT 5012 has excellent resistance to yellowing.
- OPT 5012 features low fluorescence.
| Typical Properties | |||||||||
| Mix ratio | 100:35 resin to hardener | ||||||||
| Mixed viscosity | 0.5-1.0 Pa.s (500-1000 cps) @ 25°C | ||||||||
| Colour | Water white | ||||||||
| Specific gravity | 1.05 | ||||||||
| Pot life | 4 hours @ 23°C (< 25 g mix) 8 hours @ 23°C (< 4 g mix) Max suggested mix 100g |
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| Cure schedule |
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| Cured properties (90 minutes @ 80°C) | |||||||||
| Glass transition temperature (Tg) | 70°C | ||||||||
| Hardness, Shore D | 82 | ||||||||
| Temperature range | -60 to 200°C | ||||||||
| CTE | 50-60 ppm/°C | ||||||||
| Lap shear strength (Al/Al) | 3000 N | ||||||||
| Optical transmission | >97% @ 300-900 nm; excellent to 2500 nm | ||||||||
| Refractive index | 1.56 est. | ||||||||
| Dielectric strength | 20kV/mm est. | ||||||||
| Dielectric constant | 3.1 est. | ||||||||
| Volume resistivity | >1014 est. | ||||||||
| Shelf life | 12 months in original sealed containers | ||||||||
Packaging
Opti-tec 5012 is available in twinpacks or in bulk.
The twinpack is a clear film sachet, with the resin and hardener separated by a removable clip and rail divider. To mix the adhesive, remove the divider and mix the two parts together within the sachet. The two parts are mixed until they appear uniform, which usually takes about 1 to 2 minutes. Cut off one corner of the sachet, and dispense to required area, or to syringe for more precise application.
Standard twinpack size is 4g total weight. Opti-tec 5012 twinpack sachets are packaged in quantities of 5, sealed into a protective aluminium foil pouch.
| Part number | Description |
| OPT5012-4G | 5 x 4g twinpack sachets |
| OPT5012-500G | 500g kit (approx 1.1lbs) |
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March 2006
Version 3.1
17 Station Field Industrial Estate, Banbury Road
KIDLINGTON, Oxfordshire, OX5 1JD, ENGLAND
Tel: +44 1865 842842 Fax: +44 1865 842172 info@intertronics.co.uk