About Opti-tec 4210 Optically Clear, Hard Polyurethane Encapsulant and Potting Compound
Opti-tec 4210 is a two-part, high hardness, room temperature curing polyurethane resin designed for the potting and encapsulation of electronic devices requiring very high clarity. Opti-tec 4210 has excellent outdoor weathering properties, due to the incorporation of both UV resistant base materials and the addition of UV stabilisers and antioxidants. Opti-tec 4210 is a harder version of Opti-tec 4200.
Features & Benefits
- Water clear – for high clarity potting, encapsulating, casting
- Very hard, Shore D80 – resists scratching and marking
- Excellent long term UV stability – can be used outdoors
- Low viscosity – easy to mix and process
- High mechanical strength
- Potting of LED lighting projects, including LED tracks, arrays, luminaires
Protection of electronics located outside or walked on; uplighters
- Optical instruments
- High quality casting resin
- Lens forming
|Specific gravity (g/ml)||1.09||1.05||1.13|
|Viscosity m.Pa.s @ 25°C||1,700||2,500||1,200|
|Mix ratio by weight||0.93:1|
|Mix ratio by volume||1:1|
|Pot life (100g mix @ 20-25°C)||30 minutes|
|Gel time (100g mix @ 20-25°C)||40 minutes|
|Light handling||48 hours @ 20-25°C
24 hours @ 40°C
12 hours @ 60°C
|Full cure||72 hours @ 20-25°C
24 hours @ 40°C
12 hours @ 60°C
|Water absorption||0.87% (30 days @ 25°C)|
|Shore D hardness||80|
|Operating temperature (application & geometry dependant)||-55 to +120°C|
|Thermal conductivity||0.25 W/mK|
|Tensile strength||26 mPa|
|Elongation at break||5-10%|
|Compressive yield strength||30 mPa|
|Coefficient of linear expansion||60-80 pp/m°C|
|Volume resistivity||3 x 1014 ohm.cm|
|Surface resistivity||3 x 1015 ohm|
|Electric strength||20 kV/mm|
|Opti-tec 4210 is RoHS compliant and contains 0% REACH SVHC. Mercury free.|
|Safety Data Sheets|
|For the latest SDS for this product, please e-mail firstname.lastname@example.org|
See how Opti-tec 4210 works as part of a real application in this Potting Compound Case Study:
|Potting a pressure-resistant device for deep sea fishing
Utilising a combination of optically clear Opti-tec 4210 and opaque IRS 3071 into their product, SNTech was able to protect their innovative ‘Pieces Deep’ fishing lights from 100 bar pressures at depths of 1000m, without sacrificing light performance.
Opti-tec 4210 is available in bulk, cartridges and twin packs.
|OPT4210-50G||Clear Hard Polyurethane Encapsulant – 50g double syringe cartridge|
|IDM805001||Syringe Gun – for 50g cartridges|
|OPT4210-250G||Clear Hard Polyurethane Encapsulant – 250g twin pack sachet|
|OPT4210-1KG||Clear Hard Polyurethane Encapsulant – 1 kilogram kit|
For optimal results, store in conditions that aren’t humid and aren’t affected by direct sunlight. Store away from strong bases, strong acids, strong oxidising agents, water, amines and alcohols. Keep in the original packaging and store in a cool, well-ventilated area. Keep container tightly closed.
Our technical sales team are on hand to discuss your application requirements. Click here to get in touch.
Find out more information on how to purchase.
- Last updated: January 2022
- Version: 2.4
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.