Prysmian JEM Resin For Low Voltage Cable Jointing

By Chris Dodds on 24th August, 2012

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Prysmian Cable Jointing

Prysmian JEM Cold Pour Compound

 

Prysmian JEM Resin was developed to meet the growing concerns regarding exposure to isocyanates in the workplace. 

Prysmian JEM Resin Cold Pour Compound Features & Benefits

• Low viscosity (very searching, no voids, easier mixing)
• Easy mixing at low ambient temperatures (e.g. -15°C)
• Curing reaction not sensitive to moisture (will cure under water)
• Filled joints may be energised immediately if undisturbed
• Supplied in clear pouches which allows mixing to be observed in process
• Excellent adhesion to XLPE, PVC, Lead etc
• Type approved in LV joints (ENA TS C81/3 and BS EN 50393)
• Tested in accordance with HD631.1
• Re-enterable version available

 

Prysmian JEM Resin Performance Data

Properties Of Resin
Type	Low hazard, isocyanate free
Appearance / Colour	Grey / brown fluid when mixed
Viscosity Of Mixture @ 5°C	3700 mPa.s
Relative Density	2g/cm³ @ 25°C
Flash Point	>110°C
Non-volatile Content	85%
Storage Conditions	Away from direct sunlight <50°C
Application Properties
Mixing Ratio - by weight	5.6 powder: 1 liquid
Flash Point	>110°C
Pot Life	16mins @ 5°C
	5mins @ 40°C
Gel Time	15mins (0.5 litre @ 25°C)
Peak Exothermic Temperature 0.5litres	35°C @ 5°C
	70°C @ 40°C
Complete Cure Time	24 hours @ 25°C
Performance Properties
Colour Of Mixture	Grey / Brown
Class Of Resin	Methacrylate
Water Absorption Rate	0.011% @ 24hrs, 25°C
	0.8% @ 42days, 50°C
Hardness	74 Shore A
Volume Shrinkage After Curing	<1.0%
Tensile Strength	2.5 N/mm²
Ultimate Elongation	50%
Impact Strength	No break
Volume Resistivity	5 x 10¹³ Ohm.cm @ 20°C
	7.4 x 10¹¹ Ohm.cm @ 90°C
Surface Resistivity	1 x 10¹³ Ohms
Dielectric Strength	9.3 KV/mm
Thermal Conductivity	1.31 W/m.K
Maximum Continuous Operating Temperature	95°C
Time To Energise LV Joints (Undisturbed)	Immediately
Time To Energise LV Joints (Backfilled Or Moved)	2hrs

 

Prysmian JEM Resin - Cold Pour Compound Mixing Instructions

• Further Reading

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