Skip to main content

Norland 61 Optical Adhesive 1oz (28gm) Bottle *MIL-A-3920

Norland 61 Optical Adhesive 1oz (28gm) Bottle *MIL-A-3920
Norland Optical Adhesive 61 (""""""""NOA 61"""""""") is a clear, colourless, liquid photopolymer that will cure when exposed to ultraviolet light. Since it is a one part system and 100% solids, it offers many advantages in bonding where the adhesive can be exposed to UV light. read more
£39.83 excl VAT
(£47.80 Inc VAT)
No stock - lead time 24 days
Bulk discounts
£39.83 + VAT
£37.84 + VAT
£36.84 + VAT
£35.85 + VAT

Product Information


  • The use of NOA 61 eliminates premixing, drying or heat curing operations common to other adhesive systems.
  • Curing time is remarkably fast, and is dependent upon the thickness applied and the amount of ultraviolet light energy available.
  • NOA 61 meets Federal Specification MIL-A-3920 for optical adhesives and is approved for use on all government contracts specifying such adhesives.
  • The adhesive is designed to give the best possible optical bond to glass surfaces, metals, fiberglass and glass filled plastics.
  • NOA61 is recommended for bonding lenses, prisms and mirrors for military, aerospace and commercial optics as well as for terminating and splicing optical fibers.
  • NOA 61 also has excellent clarity, low shrinkage and as light flexibility that make it superior to other materials for optical bonding.
  • These characteristics are important in order for the user to produce high quality optics and achieve long term performance under changing environments.
  • NOA 61 is cured by ultraviolet light with maximum absorption within the range of 320-380 nanometers with peak sensitivity around 365nm. 

Specifications and Information

Technical Information

£39.83 excl VAT
(£47.80 Inc VAT)
No stock - lead time 24 days
Product Code
Commodity Code
Country Of Origin
United States

Document Downloads

Sil-Mid Limited DO NOT GUARANTEE that the information in these documents is the most up to date information available from the manufacturer, there are times when updated information is released and we are not made aware immediately.

Delivery information

Orders over £100 placed online will now qualify for FREE UK Mainland delivery*

Orders under £100 placed online for UK Mainland delivery is £8.95*

**Orders requiring Pre 10.00am Next Day delivery has also been lowered from £35.00 to £21.00, orders placed through the office will incur additional charges.** 

International delivery (door to door delivery) is available for selected countries worldwide. Shipping will be automatically calculated based on the weight, location and hazardous nature of the goods. Customers can also choose ex works to arrange their own collection.

Please refer to our delivery page for more information.