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About Opti-tec 5007 Clear Epoxy Adhesive for Optics

Opti-tec 5007 is a two component, low viscosity clear epoxy adhesive with a two hour pot life, capable of curing within 20 minutes at 75°C. Opti-tec 5007 has excellent sealing and bonding characteristics due to its viscosity and wetting properties. Cured material has high shock and impact resistance with outstanding chemical, moisture and thermal resistance.

The adhesive is designed for fibre optic terminating (pot and polish of fibre optic connectors), where its ability to cure at ambient or minimal raised temperatures gives process enhancements. It can be used for bonding and potting optical components such as prisms, lenses, LED displays and fibres, and for general precision bonding.

Features & Benefits

  • Clear adhesive with a viscosity of 1000 cps
  • Also available in a blue version (Opti-tec 5007B) for ease of inspection in fibre terminating
  • Two hour pot life after mixing and cures within 16-24 hours at room temperature. Cure can be achieved in 20 minutes at 75°C or 5 minutes at 100°C.
  • High surface energy and low viscosity allows it to readily wet and wick between optical fibres. It develops strong adhesion to most materials used in fibre optics and optics, including metals, ceramics, glass and many plastics.
  • Good impact and thermal shock resistance
  • Low exotherm, low shrinkage, low stress cure
  • Excellent chemical and moisture resistance with a very low exotherm, making it suitable for small potting and encapsulation applications
  • Used for Telcordia GR-326-CORE compliant assemblies (General Requirements for Singlemode Optical Connectors and Jumper Assemblies – formerly Bellcore), where its high Tg and environmental robustness allow the termination to meet the specification. Note: optimal cure schedule required.
  • Opti-tec 5007B, when cured, is considered non-cytotoxic and meets the requirements of the Elution Test, ISO 10993-5.


  • Fibre optic terminating, multimode fibres
  • Endoscope manufacture and repair
  • Optical potting & bonding
  • Medical device assembly – ISO 10993-5
  • Glass bonding


Colour Opti-tec 5007 – clear
Opti-tec 5007B – blue
Mix ratio 100:25 resin to hardener
Mix viscosity 500-1500 cps
Shelf life 12 months from date of manufacture
Cure schedule Bondline temperature
16-24 hours
20 mins
5 mins
Pot life 2 hours @ 23°C (4g mix)
Shrinkage on cure 2-3%
Cured properties
(5 minutes @ 100°C)
Glass transition temperature (Tg) 105°C
Specific gravity 1.1
Hardness Shore D 85
Temperature resistance -60 to 200°C
CTE 55 ppm/°C
Refractive index 1.55
Surface tension 42-44 mN/m
Lap shear adhesion
Stainless steel 12.7 MPa
Aluminium 6082 T 5.4 MPa
Polycarbonate 4.8 MPa
PMMA 2.0 MPa
Nylon 6/6 2.7 MPa
ABS 1.7 MPa
Glass 2.3 MPa

Lap shear graph OPT 5007

All Downloads

Filename Size Download
Twinpack Mixing Instructions 0.17MB
How Much Adhesive Will I Need? 0.15MB

Ordering Information

Optic-tec 5007 is available in twinpacks or bulk kits.

Twinpack packaging Twinpack packaging instructions

The twinpack sachet is a clear film sachet, with the resin and hardener separated by a removable clip and rail divider. Click here for twinpack mixing instructions.

Standard twinpack size is 4g total weight. Optic-tec 5007 twinpack sachets are packaged in quantities of 5, sealed into a protective aluminium foil pouch. After opening pouch, use adhesive twinpacks within a few days, or tightly reseal the pouch with the enclosed desiccant to preserve shelf-life.

Part number Description
OPT5007-4G Opti-tec 5007 epoxy – 5 x 4g twinpack sachets
OPT5007-500G Opti-tec 5007 epoxy – 500g kit
(approx 1.1lbs)
OPT5007B-4G Opti-tec 5007 blue epoxy – 5 x 4g twinpack sachets
OPT5007B-500G Opti-tec 5007 blue epoxy – 500g kit
(approx 1.1lbs)

For the best results, store away from Strong alkalis, oxidising materials, acids, amines, oxidising agents, chlorides and acid anhydrides. Static electricity and formation of sparks must be prevented. Keep only in the original container. Keep container tightly closed and upright, in a cool, well-ventilated place. Protect containers from damage. Bund storage facilities to prevent soil and water pollution in the event of spillage. The storage area floor should be leak-tight, jointless and not absorbent.


Next Steps

Our technical sales team are on hand to discuss your application requirements. Click here to get in touch.

Find out more information on how to purchase.

  • Last updated: October 2020
  • Version: 3.5

Statements, technical information and recommendations contained herein are based on tests we believe to be reliable but they are not to be construed in any manner as warrantees expressed or implied. The user shall determine the suitability of the product for his intended use and the user assumes all risk and liability whatsoever in connection therewith.