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Optical adhesives provide low-stress, low-movement, and gap filling to 1/4 inch for lens bonding, laminating, and positioning, VCSEL potting, optical mounting, and fiber optic assembly applications. One-part optical epoxies cure in seconds to UV/Visible light and bond well to glass, metal, ceramic, quartz, and plastic substrates. High-tensile-strength, optically clear bonds of 3,000 psi, and shrinkage as low as 0.1% are possible.

  • Rapid UV/Visible light cure
  • Excellent light transmission properties
  • Low stress, shrinkage, and outgassing properties result in low movement
  • One component and no mixing
  • Optically clear formulations
Optical Adhesives
Unit of Measure
Items Optical Adhesives
OP-29
2,500 Centipoises (CP) Nominal Viscosity Optical Adhesive 		Optical Adhesives
OP-29-GEL
20,000 Centipoises (CP) Nominal Viscosity Optical Adhesive 		Optical Adhesives
OP-60
15,000 Centipoises (CP) Nominal Viscosity Optical Adhesive 		60,000 Centipoises (cP) Nominal Viscosity Optical Adhesive
OP-81-LS
60,000 Centipoises (CP) Nominal Viscosity Optical Adhesive
Description N/A Optical adhesives provide low-stress, low-movement, and gap filling to 1/4 inch for lens bonding, laminating, and positioning, VCSEL potting, optical mounting, and fiber optic assembly applications. One-part optical epoxies cure in seconds to UV/Visible light and bond well to glass, metal, ceramic, quartz, and plastic substrates. High-tensile-strength, optically clear bonds of 3,000 psi, and shrinkage as low as 0.1% are possible.

  • Rapid UV/Visible light cure
  • Excellent light transmission properties
  • Low stress, shrinkage, and outgassing properties result in low movement
  • One component and no mixing
  • Optically clear formulations
Brands N/A Dymax®
Nominal Viscosity N/A 2,500 cP N/A 20,000 cP N/A 15,000 cP N/A 60,000 cP
Refractive Index (Cured) at 25 Degree Celsius (ºC) Temperature N/A 1.50 N/A 1.50 N/A N/A
Linear Shrinkage N/A 0.79 % N/A 0.79 % N/A 0.8 % N/A
Uncured Appearance N/A N/A N/A N/A Off White Opaque to Charcoal Translucent Gel
Volumetric Shrinkage N/A N/A N/A N/A 1.5 %
Low Temperature N/A N/A N/A N/A 80 to 85 ºC
Recommended Surfaces N/A N/A N/A N/A Liquid Crystal Polymer (LCP) Polyphenylene Sulfide (PPS)
Recommended Substrates N/A N/A N/A N/A Aluminum Cellulose Acetate Propionate (CAP) Flame Retardant (FR-4) Glass Polycarbonate (PC) Polyethylene Terephthalate Glycol (PETG) Polyimide (PA) Polymethyl methacrylate (PMMA) Polystyrene (PS) Stainless Steel Styrene-Acrylonitrile (SAN)
Industry Standards N/A N/A N/A N/A American Society for Testing and Materials (ASTM) E595
Features N/A
  • Cures with UV/Visible light
  • Optically clear adhesive
  • Resilient
  • Resists yellowing
  • Low stress
  • One component, no mixing required
  • no solvents added
  • Flexible
  • Medium viscosity for gap filling
 		N/A
  • Cures with UV/Visible light
  • Optically clear
  • Resists yellowing
  • Gel viscosity for minimum movement after dispense
  • Flexible
  • One component - no mixing
  • Low stress
  • No solvents added
 		N/A
  • Precision positioning adhesive
  • Low outgassing
  • Low shrinkage
  • Low moisture absorption
  • Opaque
  • Heat cycle stable
 N/A
  • Fast cure with LED or UV/Visible light
  • Low temperature heat cure (80-85 ºC)
  • Low shrinkage and CTE
  • Single component
  • Cold ship/Cold storage at 1-5 ºC
  • Passes ASTM E595 Outgassing Testing
Additional Information N/A Optical Adhesive for Bonding Plastics to Glass and Metal

Dymax® OP-29 UV cure optical adhesive forms tough, resilient bonds to glass, metals, and a variety of plastics including polycarbonate and polyimide. OP-29 adhesive cures in seconds upon exposure to UV light. OP-29 adhesive is available in two viscosities: a free-flowing liquid (OP-29) or as a thixotropic gel (OP-29-GEL).

Recommended applications included tacking, bonding, sealing, and potting.

Dymax® materials are no solvents added and cure upon exposure to light. Their ability to cure in seconds results in lower processing costs. When cured with Dymax® UV light curing spot lamps, focused beam lamps, flood lamps, or conveyor systems they deliver optimum speed and performance for maximum efficiency. Dymax® lamps offer the optimum balance of UV and visible light for the fastest, deepest cures. 		N/A Multi-Purpose Light-Curable Optical Adhesive

Dymax® OP-29-GEL UV curable optical adhesive forms tough, resilient bonds to glass, metals, and a variety of plastics including polycarbonate and polyimide. OP-29-GEL adhesive cures in seconds upon exposure to UV light.

Recommended applications include tacking, bonding, potting, and sealing.

Dymax® materials are no solvents added and cure upon exposure to light. Their ability to cure in seconds results in lower processing costs. When cured with Dymax® UV light curing spot lamps, focused beam lamps, flood lamps, or conveyor systems they deliver optimum speed and performance for maximum efficiency. Dymax® lamps offer the optimum balance of UV and visible light for the fastest, deepest cures. 		N/A Precision Positioning Optical Adhesive

OP-60 high-performance optical adhesive cures upon exposure to UV or visible light in seconds. OP-60 is a low-shrinkage, low-outgassing, low-CTE adhesive designed for the precise positioning of lenses, prisms, and other optical components. OP-60 bonds to metal, glass, ceramic, FR-4, and polycarbonate. Applications include optical alignment where minimal or no movement is required.

Dymax® materials are no solvents added and cure upon exposure to light. Their ability to cure in seconds results in lower processing costs. When cured with Dymax® UV light curing spot lamps, focused beam lamps, flood lamps, or conveyor systems they deliver optimum speed and performance for maximum efficiency. Dymax® lamps offer the optimum balance of UV and visible light for the fastest, deepest cures. 		N/A Low Shrinkage Optical Positioning Epoxy with LED and Heat-Cure Capability

Dymax® Low-Shrink™ OP-81-LS is a UV/Visible light-curable optical adhesive epoxy with very low shrinkage during cure and is ideal for rapid positioning of optical components. OP-81-LS cures with UV light and includes a low-temperature heat-curing function in applications where shadow areas exist or where heat cure only is preferred. This one-component optical epoxy is recommended for surfaces and substrates including polycarbonate, glass, acrylic and metallic surfaces.

OP-81-LS requires cold storage/cold shipping and should be kept between 1 ºC (34 ºF) and 5 ºC (41 ºF) in the original, unopened container.

Dymax® materials contain no nonreactive solvents and cure upon exposure to light. Their ability to cure in seconds enables faster processing, greater output, and lower processing costs. When cured with Dymax® UV light curing spot lamps, focused beam lamps, flood lamps, or conveyor systems they deliver optimum speed and performance for maximum efficiency. Dymax® lamps offer the optimum balance of UV and visible light for the fastest, deepest cures.