RS PRO Transparent PUR Potting Compound

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

RS PRO Polyurethane Resin

The RS PRO polyurethane resin is an optically clear compound, making it ideal for LED encapsulation. It is suitable for aesthetic as well as a protective application over the top of the luminaire. Due to the aliphatic chemical nature of the resin chemistry, the cured resin is naturally resistant to the yellowing effects of UV light. It shows excellent weather resistance, as well as chemical resistance against a range of chemicals. This enables this clear, though yet flexible resin to be used in a range of applications, both indoor or outdoor.

Features and Benefits

Water white transparency
High resistance to acids and alkalis, water and mould growth
Excellent ability to process
Resistant to mark, scratches, UV light, weather and chemicals
Cure time of 4 hours at 60°C and 24 hours at 23°C
Hardness is 75 Shore A
Thermal conductivity of 0.2W/mK
Volume resistivity of 10^14Ω cm
Dielectric strength of 11kV/mm
Cure time (23 °C) is 24 hours
Operating temperature ranges between -40⁰C and 120⁰C


LED applications
Outdoor applications


ANSI/ESD S20.20:2014
BS EN 61340-5-1:2007

Attribute Value
Product Material PUR
Package Type Pack
Package Size 250 g
Special Properties Chemical Resistance, Mark Resistance, Scratch Resistance, UV Light Resistance, Weather Resistance, Yellowing Resistance
Cure Time 4 h @ 60 °C, 24 h @ 23 °C
Hardness 75 Shore A
Thermal Conductivity 0.2W/mK
Colour Transparent
Maximum Operating Temperature +120°C
Minimum Operating Temperature -40°C
Dielectric Strength 11kV/mm
Chemical Composition Polyurethane Resin
Physical Form Viscous Liquid
Volume Resistivity 10^14Ω cm
Viscosity Description Low
Operating Temperature Range -40 → +120 °C
Viscosity Measurement 700 (Part A) mPa/s, 900 (Mixed) mPa/s, 1200 (Part B) mPa/s
79 In stock - FREE next working day delivery available
Price Each
£ 17.16
(exc. VAT)
£ 20.59
(inc. VAT)
Per unit
1 - 5
6 - 14
15 +
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