CONATHANE® EN-20
CONATHANE® EN-20 is a low-viscosity, two-part polyurethane that cures at room or low temperatures. It features low shrinkage, minimal exotherm, and excellent electrical and moisture resistance, making it ideal for potting and encapsulation applications.
CONATHANE® EN-20 Features:
- Low exotherm and shrinkage
- Excellent moisture and thermal shock resistance
- Outstanding electrical properties
- Convenient 1:2 volume mix ratio
CONATHANE® EN-20 Applications:
- Potting transformers, switches, coils, and microcircuits
- Encapsulation of voltage regulators, PCBs, and rectifiers
- Suitable for low-stress protection of embedded parts
About Prostech
Prostech Philippines is a one-stop solution provider for specialty materials and equipment across electronics manufacturing, from PCBA to final assembly. Our core material and equipment solutions include:
- PCB Assembly Materials
- Cleaning & Degreaser
- Circuit Board Protection
- Thermal Management Solutions
- EMI Shielding
- General Assembly Adhesives
- Elastomeric Materials
- Process Equipment: Potting & Coating Systems, UV/ Heat Curing, Plasma Treatment, Tape placement automation, and cleaning machines
Technical Added Value to customer
Prostech offers customized material and process equipment solutions with engineering support throughout R&D, production process optimization, and performance validation. Our in-house lab located in Alabang, Muntinlupa is equipped to conduct electronics material testing, application simulation, and adhesive validation, helping customers reduce the need for onsite trials and accelerate implementation.
International Supply Chain Advantage
Regional warehouse hubs across Vietnam, Singapore, Malaysia, and the Philippines ensure cross-border reliable supply. In Philippines PEZA-bonded warehouse located at Lima Industrial Park, Batangas enables Prostech to provide responsive, demand-based delivery and significantly shortens standard lead time for Philippines customers.
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Typical Properties of Material as Supplied
|
Property |
Conditions |
Value |
Units |
|
|
|
|
CONATHANE® EN-20 Part A Urethane Prepolymer |
CONATHANE® EN-20 Part B Curative |
|
|
Viscosity |
25°C / 77°F |
16,000 – 28,000 |
460 – 600 |
cP |
|
Appearance |
|
Clear Amber |
Clear Amber |
|
|
Weight per Gallon |
25°C / 77°F |
9.5 |
8.0 |
pounds |
|
Flash Point |
ASTM D93 |
> 94 |
> 94 |
°C |
|
> 201 |
> 201 |
°F |
||
|
Mix Ratio |
Parts by weight |
100 |
170 |
|
Typical Properties of Mixed Materials
|
Property |
Conditions |
Value |
Units |
|
Viscosity (initial) |
25°C / 77°F |
1200 |
cP |
|
Pot Life |
250 g – 25°C / 77°F 250 g – 60°C / 140°F |
120 15 |
minutes minutes |
Typical Mechanical Properties
|
Property |
Test Method |
Conditions |
Value |
Units |
|
Shore Hardness |
ASTM D2240 |
25°C / 77°C |
A 60 |
|
|
Specific Gravity |
|
25°C / 77°C |
1.03 |
|
|
Tensile Strength |
ASTM D412 |
25°C / 77°C |
400 |
psi |
|
Elongation |
ASTM D412 |
25°C / 77°C |
150 |
% |
|
Coefficient of Thermal Expansion |
ASTM D696 |
|
240 |
ppm / °C |
|
Compression Set |
ASTM D395 Method B |
25°C / 77°C |
6 |
% |
|
Tear Strength |
ASTM D624 |
25°C / 77°C |
28 |
pli |
|
Thermal Conductivity |
ASTM C177 |
|
0.2 |
W / m∙K |
|
Thermal Shock |
MIL-I-16923E |
-70°C to 130°C |
pass 10 |
cycles |
|
Water Absorption |
ASTM D570 |
25°C / 77°F – 24 hours 25°C / 77°F – 7 days |
0.2 0.3 |
% % |
