How do you treat Norland 61?
David Richardson NOA 61 is cured by ultraviolet light with maximum absorption within the range of 320-380 nanometers with peak sensitivity around 365nm. The recommended energy required for full cure is 3 Joules/sq. cm in these wavelengths.
How do I remove Norland Optical Adhesive?
To remove uncured adhesive from the substrate use an acetone or alcohol moistened cloth. The cured adhesive can be separated by soaking in a chlorinated solvent such as methylene chloride. Normally, the bonded area will separate overnight if only precured.
How do you remove optical cement?
Remove the elements while hot, and wipe off any excess cement. Place the elements in a clean, dry container until they return to room temperature. Remove the elements, wash with acetone and dry with cheesecloth….
| Specifications: | |
|---|---|
| Flash Point | 167°F |
| Size | 16 oz and 1 gallon |
How long does UV glue take to dry?
The UV wavelength is a catalyst for a photochemical reaction which causes the polymer to harden, almost instantly. In most cases, the polymer will harden when exposed to UV light for only three seconds, although some applications may recommend exposure for ten to fifteen seconds providing optimum bonding adhesion.
What dissolves polyurethane glue?
Acetone
Because of its properties, polyurethane glue is one of the most difficult adhesives to remove by traditional methods. Using the proper cleaning materials is key to successful removal. Acetone is a chemical solvent commonly found in nail polish removers that can help dissolve the glue and ease removal.
What is optical epoxy?
Optical Epoxies by EPO-TEK® Our products encapsulate, coat, bond and seal plastics, crystals and glass together for optical components, such as prism, filters, and mirrors.
What are nornorland optic adhesives?
Norland Optic Adhesives are clear, one part adhesives that contain no solvents. When exposed to UV light, they gel in seconds and cure fully in minutes to give a tough resilient bond. Each of the six formulas listed below has been optimized to provide excellent bonding for specific applications.
What are the properties of Noa 61?
Typical Properties of NOA 61 Solids Viscosity at 250 C Refractive Index of Cured Polymer Elongation at Failure Modulus of Elasticity (psi) Tensile Strength (psi) Hardness – Shore D 100% 300 cps 1.56 38% 150,000 3,000
What is the refractive index of noa65 when cured?
The refractive index of the cured polymer typically has a value of 1.56. NOA65 when cured is a very flexible adhesive and minimizes strain. It is suitable where the adhesive cross section would be relatively thick. It has enough elasticity to minimize strain even when materials with different coefficients of expansion are bonded.
