Water Resistant Potting

EFI Polymers has several epoxy potting and urethane potting products designed to offer improved water resistance for  the most demanding applications. Our materials have been field tested and proven over the last decade, to provide long term sealing and protection. Our top of the line epoxy and urethane compounds accomplish this with:

  • Hydrophobic resins and components: EFI Polymers employs a variety of chemistries to achieve enhanced water resistance in our potting systems including polybutadiene polyols, polyetheramines and silica mineral fillers that reduce water absorption.
  • Dense Crosslinking: ¬†highly cross linked epoxy systems provide a tighter polymer network, that reduces water penetration.
  • Thermal shock resistance: these materials are designed to withstand thermal cycling exceptionally well. This reduces cracking and shrinkage which helps improve moisture resistance over a wide range of temperatures.
  • Ease of processing: our formulations are designed to be easily dispensed, either via machines or hand mixing, thanks to easy to use mix ratios and low to moderate viscosities.
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System ID Comments Mix Ratio
by Volume
Mixed Viscosity
at 77F
Mixed Density
Lb/Gal
Mixed Color Gel Time Gel Time
Mass
Hardness
Shore Type
Hardness
Value
Room
Temperature
Cure, Y/N
Volume Resistivity Insulation Resistivity Surface Resistivity
30020/40018
RF-Transparent, excellent air release
100:45.9
500
8.5
Yellow
49
100
A
60-65
Yes
1.1x10E13
30021/40002
very fast, UV Resistant, good hydrolitic stability
100:49
9.2
Black
10
150
D
70-75
Yes
20290/50021
excellent thermal conducitivity and resistance to shock
100:21.7
13.7
Black
70
200
D
85
Yes
20215/50203
color coded, flame retardant, designed for submersible applications
100:50
20000
12.3
Black
90
200
D
75
Yes
9.1x10E14
System ID Comments Mix Ratio
by Volume
Mixed Viscosity
at 77F
Mixed Density
Lb/Gal
Mixed Color Gel Time Gel Time
Mass
30020/40018
RF-Transparent, excellent air release
100:45.9
500
8.5
Yellow
49
100
30021/40002
very fast, UV Resistant, good hydrolitic stability
100:49
9.2
Black
10
150
20290/50021
excellent thermal conducitivity and resistance to shock
100:21.7
13.7
Black
70
200
20215/50203
color coded, flame retardant, designed for submersible applications
100:50
20000
12.3
Black
90
200