Norland Electronic Adhesive NEA 123SHGA

SKU #NEA-123SHGA
Low outgassing, medium viscosity adhesive for wire coating, wire tacking and coil terminating.
  • $60 material handling charge applied to Norland adhesives ordered in Australia.
  • Please note the Minimum Order Quantity (MOQ) requirements, particularly for small volume Norland items.
As low as AU$27.83 AU$30.61
Typically Ships in 10 to 15 Business Days
Part Number
NEA-123SHGA

Introduction

NEA 123S HGA is a low outgassing, one part, thixotropic adhesive similar to NEA 123. When exposed to UV light, it cures in seconds to a tack free, tough resilient polymer. After curing, subsequent outgassing is less than that from standard NEA 123.

NEA 123S HGA is recommended as an extremely fast and efficient way to tack, fill, seal or bond precision components or wires in place. Applications include wire tacking, chip capacitor bonding, coil termination, tamper-proofing adjustable components, and bonding of head gimbal assemblies.

A drop of the adhesive is used to form a bridge between the component or wires and the substrate. Exposure to UV light quickly cures the adhesive and holds the components in place. Generally, about 6 joules/cm2 of UV cure energy are required for a full cure. The exact time depends on thickness, lamp intensity and individual requirements.

The adhesive was formulated to respond to the UV-A range of 320 to 390 nm. UV light sources with peak intensity near 365 nm (such as medium pressure mercury, halide or xenon lamps) are very effective.

In addition to the UV cure, the NEA 123S HGA contains a latent heat catalyst that can quickly cure areas where UV light cannot reach. The catalyst allows the adhesive to cure in 10 minutes at 125°C or 3 hours at 80°C. Thermal curing is not necessary if all the adhesive receives proper UV light. Heating a previously UV-cured material may be redundant but will not be harmful and it generally lowers the outgassing.

Oxygen inhibition of thermal curing is not a problem at 125°C but at lower temperatures, near 80°C, the surface layer of adhesive directly exposed to air may still be tacky. An inert atmosphere (nitrogen) will allow tack-free low temperature curing. Below 70°C, curing is not practical. The cure process is exothermic whether accomplished by light or heat. Test samples should be allowed to return to room temperature before evaluating.

Adhesion of NEA 123S HGA is excellent for glass, silica, stainless steel, aluminum, copper and metals in general. Adhesion to plastics is fair to good for polypropylene, polycarbonate, acrylics, vinyl and polyacetal (DuPont's Delrin®).

Typical Physical Properties


 
Property of Cured Material Value
Mechanical
Viscosity of uncured liquid, range (cps)
at 25°C, 2 sec-1 or 1 rpm.
        55,000-70,000
Shore D hardness           80
Tg   30 degrees C 

NASA Outgassing Test, ASTM E-595-90

Type of Cure % Total
Mass Loss
% Collectable Volatile Condesable Material
UV-Cure (only) 1.74 0.03
UV-Cure plus 125°C/12 minutes 1.55 0.03

Handling and Storage Precautions

NEA 123S HGA may cause skin sensitization in some susceptible individuals. Avoid prolonged skin contact. We recommend wearing gloves made of latex or other impervious material. If contact occurs, wash with soap and water. Alcohol or other solvents should not be used for washing because they may remove the protective oils from skin. While the vapor pressure of NEA 123S HGA is low and the fumes not especially toxic, good manufacturing procedures dictate adequate ventilation. Read the accompanying MSDS for more details.

Although Norland Products' adhesives cure in seconds on exposure to UV light, they are very stable when not exposed to UV or excessive heat. Store in a cool, dark place. Refrigeration, while not generally necessary, is an ideal way to store NEA 123S HGA. If refrigerated, allow the material to come to room temperature before using. Exposure to direct sunlight or heat can cause an exothermic reaction and must be avoided.

More Information
Manufacturer Norland
Product Series Norland UV Curing Optical Adhesives
Industry Aerospace and Defence, Medical, Optical Equipment Manufacturing (OEM), Photonics, Research
Applications OEM (Optical Equipment Manufacturing), Assembling and disassembling multi-element systems
Standard Package Contains
Warranty Notes AusOptic Genuine Product Guarantee
Authorised distributor, benefit from manufacturer-backed, local warranty coverage, genuine parts, and our experienced local support team
Write Your Own Review
You're reviewing:Norland Electronic Adhesive NEA 123SHGA
Your Rating
Customer Questions
No Questions
Did you find what you were looking for?
In This Series
  1. Norland Optical Adhesive NOA 1315
    Norland Optical Adhesive NOA 1315
    As low as AU$46.39 AU$51.03
  2. Norland Optical Adhesive NOA 81
    Norland Optical Adhesive NOA 81
    As low as AU$26.29 AU$28.92
  3. Norland UV Sealant UVS 91
    Norland UV Sealant UVS 91
    As low as AU$26.29 AU$28.92
  4. Norland Optical Adhesive NOA 74
    Norland Optical Adhesive NOA 74
    As low as AU$26.29 AU$28.92
  5. Norland Optical Adhesive NOA 162
    Norland Optical Adhesive NOA 162
    As low as AU$23.19 AU$25.51
Related Products
  1. Norland Electronic Adhesive NEA 123W
    Norland Electronic Adhesive NEA 123W
    As low as AU$27.83 AU$30.61
  2. NOA 1369 - 1 oz bottle
    NOA 1369 - 1 oz bottle
    AU$224.20 AU$246.62
  3. Norland Electronic Adhesive NEA 123L
    Norland Electronic Adhesive NEA 123L
    As low as AU$26.29 AU$28.92
  4. Norland Optical Adhesive NOA 148
    Norland Optical Adhesive NOA 148
    As low as AU$26.29 AU$28.92
  5. Norland Optical Adhesive NOA 86
    Norland Optical Adhesive NOA 86
    As low as AU$26.29 AU$28.92
Also Available
  1. NTT-AT CLETOP S Replacement Cassette - Blue - Suits both Type A and B
    NTT-AT CLETOP S Replacement Cassette - Blue - Suits both Type A and B
    AU$34.14 AU$37.55
  2. Norland Optical Adhesive NOA 13775
    Norland Optical Adhesive NOA 13775
    As low as AU$47.93 AU$52.72
  3. Kingfisher KI6102AA-APC In-line PON Power Meter AA Battery, SC/APC
    Kingfisher KI6102AA-APC In-line PON Power Meter AA Battery, SC/APC
    AU$738.81 AU$812.69
  4. Norland Optical Adhesive NOA 84
    Norland Optical Adhesive NOA 84
    As low as AU$26.29 AU$28.92
  5. Norland Optical Adhesive NOA 133
    Norland Optical Adhesive NOA 133
    As low as AU$46.39 AU$51.03