Opti-tec 4220 Semi-opaque, Translucent Polyurethane Encapsulant for Electronics and LED Potting
From £15.00(£18.00 inc. VAT)
Opti-tec™ 4220 is a two-part, flexible, room temperature curing polyurethane resin, designed for potting, encapsulation and protection of LED arrays and other lighting products. Opti-tec 4220 cures to form a semi-opaque, milky, translucent material (opalescent) which still allows a high transmission of light. It provides aesthetically pleasing encapsulation, hiding underlying electronics and providing a diffuse light. The material is suitable for outdoor use, with excellent weathering properties; it is formulated with UV resistant materials and includes UV stabilisers.
An evaluation kit is available which includes one 50g cartridge, supplied with a dispensing gun and mixing nozzles.
Cures to form milky, opalescent plastic
Conceals electronics whilst giving high light transmission
Can be used outdoors – excellent long term UV stability and weather resistance
Scratch and mark resistant
Low viscosity – easy to mix and process
High mechanical strength
Non-toxic
About Opti-tec 4220 Semi-opaque, Translucent Polyurethane Encapsulant for Electronics and LED Potting
Opti-tec™ 4220 is a two-part, flexible, room temperature curing polyurethane resin, designed for potting, encapsulation and protection of LED arrays and other lighting products. Opti-tec 4220 cures to form a semi-opaque, milky, translucent material (opalescent) which still allows a high transmission of light. It provides aesthetically pleasing encapsulation, hiding underlying electronics and providing a diffuse light. The material is suitable for outdoor use, with excellent weathering properties; it is formulated with UV resistant materials and includes UV stabilisers.
The opalescent properties of Opti-tec 4220 compared to Opti-tec 4200 in cured samples
Specifications
Specification
Mixed
Resin
Hardener
Colour
Translucent milky-white (when cured)
Clear
Clear
Specific gravity (g/ml)
1.10
1.04
1.16
Viscosity m.Pa.s @ 25°C
600
600
600
Mix ratio by weight
0.90:1
Mix ratio by volume
1.00:1
Curing (typical values – will vary according to mass and application. Higher cure temperatures will result in greater cure shrinkage and exotherm)
As of 24 August 2023, adequate training is required before industrial or professional use of this product.
Not sure if this is what you need?
Our technical sales team is on-hand to discuss your application and provide advice and recommendations. Call us at 01865 842842, Monday to Friday 9am - 5pm, or email us at info@intertronics.co.uk. Check out intertronics.co.uk for more information.
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.
