Manual v1.7 – Nov 2017 © Utilivista Ltd. 2017 41
C.3 – Resin Fill Information
A large part of the circuitry is resin potted. This provides structural and thermal stability to the internal
workings of the node. The components are protected from any physical and most chemical risks. The
resin also provides UV absorption.
Robnor Resins EL171H
A semi rigid, room temperature curing, flame retardant polyurethane resin
system.
DESCRIPTION
Basic
Two-component polyurethane system
Resin
RL171H
Hardener
HL171H
Application Key Properties
Encapsulation of Transformers
Non-toxic
Cable Joints
UL94-V0 @ 6mm
Wide range of substrates
Excellent adhesion
Low to medium voltage electrical and electronic
applications
High thermal conductivity
Economical
PHYSICAL DATA
(APPROX. VALUES)
Description
Resin
Hardener
Mixed
Colour
Black
Amber
Black
Colour
Beige
Amber
Beige
Specific Gravity
1.72
1.24
1.65
Viscosity (mPas) @ 25°C
19000
200
6000
CURE SCHEDULE
(150ML SAMPLE)
Temperature
Working
Life
(minutes)
Gel Time
(minutes)
Light
Handling
(hours)
Full Cure
(hours)
RT (20-25°C)
20
40
24
48
60°C
-
-
2
4
80°C
-
-
1
2