
Two-component thermal conductive flame-retardant silicone potting adhesive
FEATURES & BENEFITS Soft, low durometer Low viscosity Room temperature or accelerated heat cure Good thermal conductivity Mix ratio 1 to 1 Low internal stress during thermalcycling Highly flowable for filling smallgaps and fast processing Good heat dissipation Prevents water ingress Electrically insulative Low total cost of ownership
Detailed introduction
COMPOSITION
Two- part Polydimethylsiloxane 1 to 1 mix ratio, low viscosity encapsulant
APPLICATIONS
Jome chemical JOMS 5230-6 Low Stress Encapsulant has a very
low hardness andviscosity to minimize internal stress generation, fill small gaps, and improvemanufacturing speed for complex and high volume electronic devices. Excellentflame resistance and protection against water ingress that improve the safety andreliability
under harsh outdoor environments such as:
² Power Conversion Devices (Inverters, Converters, Driver)
² Junction Boxes
² Automotive Electronics Modules
TYPICAL PROPERTIES
Specification Writers: These values are not intended for use in preparingspecifications. Please contact your local Jome polymers
sales before writing specifications on this product.
Property | Unit | Result |
Color | ||
Part A | Black | |
Part B | Off-White | |
Mixed | Dark Grey to Black | |
Viscosity1 (Part A) | cP | 4000±500 |
Viscosity2 (Part B ) | cP | 3000±500 |
Mixed Viscosity3 | cP | 3800±500 |
Specific Gravity4 (Part A) | 1.62±0.05 | |
Specific Gravity5 (Part B) | 1.62±0.05 | |
Working Time at 25°C (Pot Life) | minutes | 40±10 |
Gel Time6 at 22°C | minutes | 30±10 |
Gel Time7 at 50°C | minutes | 10 |
Cure Time8 at 25°C | hours | 8 |
Cure Time9 at 50°C | minutes | 40 |
Penetration,1/mm,10 | 40±10 | |
Thermal Conductivity11 | W/mK | 0.75 |
TYPICAL PROPERTIES (Continued)
Property | Unit | Result |
Tensile Strength | psi | 33 |
MPa | 0.2 | |
Elongation | % | 340 |

TYPICAL PROPERTIES (Continued)
Dielectric Strength | kV/mm | >15 | |
Volume Resistivity | ohm*cm | 1E+14 | |
Dissipation Factor at 1 MHz | 0.009 | ||
Dielectric Constant at 100 Hz | 2.7 | ||
Dielectric Constant at 100 kHz | 2.7 | ||
Dielectric Constant at 1 MHz | 2.7 | ||
HWI | 2 | ||
HAI | 0 | ||
CTI | 0 | ||
RTI Elec | °C | 105 | |
RTI Imp | °C | 105 | |
RTI Str | °C | 105 | |
Package
² 10kg/pail for each part
| type | model number | Product Description | Color | Mix ratio (By weight) | Viscosity | Pot life 25℃ min,150g | Initial curing time 25℃, 55%RH,hr | Complete curing time | Hardness | Thermal conductivity | Usage temperature |
| Two component silicone gel | JOMS 5230 | 1.0W thermal conductivity, flame retardant sealant | Grey/Black | 100:100 | 2500cps | 50min | 100min | 24h | 45A | 1.0W | —60~250℃ |
| JOMS 5230-15 | 1.5W thermal conductivity, flame retardant sealant | grey | 100:100 | 4200cps | 50min | 100-150min | 24h | 40A | 1.5W | —60~250℃ | |
| JOMS 5230-25 | 2.5W thermal conductivity, flame retardant sealant | grey | 100:100 | 3500cps | 40min | 150min | 24h | 40A | 2.5W | —60~250℃ | |
| JOMS 5230-30 | 3.0W thermal conductivity, flame retardant sealant | grey/pink | 100:100 | 5000cps | 40min | 180min | 24h | 45A | 3.0W | —60~250℃ | |
| JOMS 5230-40 | 4.3W thermal conductivity, flame retardant sealant | grey/pink | 100:100 | 5000cps | 40min | 180min | 24h | 45A | 4.3W | —60~250℃ |



