Thermal Conductive Polyurethane Potting Compound (1.3W)

JOMP 2651A/B is a two-component room-temperature or thermosetting elastomer resin composite material, suitable for two-component sealing and potting applications. The cured samples exhibit excellent flexibility and high thermal conductivity. It is widely used in the potting and encapsulation processes of communication equipment, transformers, control power supplies, ignition controllers, and electronic sensors.

Low viscosity, operable

Excellent low temperature characteristics, excellent weather resistance

High thermal conductivity index up to 1.3W/m.K

Excellent electrical insulation and stability

Good adhesion to most metals and plastics

product details

Thermal Conductive Polyurethane Potting Compound

Product features and uses

JOMP 2651A/B is a two-component solvent-free room temperature or heat-curable resin elastomer compound for dual-component sealing and potting applications. This environmentally friendly material, free from heavy metals, offers versatile processability with superior physical properties and excellent substrate adhesion. Capable of curing at both room temperature and under heat, it achieves deep penetration and solidification. The mixture demonstrates exceptional flow characteristics during mixing, while cured specimens exhibit remarkable flexibility and high thermal conductivity. It is widely used in potting and encapsulation processes for communication equipment, transformers, control power supplies, ignition controllers, and electronic sensors.

Suitable for potting of various components

TWO COMPONENT, Low VISCOSITY

Low viscosity, operable

Excellent low temperature characteristics, excellent weather resistance

High thermal conductivity index up to 1.3W/m.K

Excellent electrical insulation and stability

Good adhesion to most metals and plastics

Conventional performance

 test item Units and conditions  criterion of detection A / B
 surface A

B

 visualization  visualization Black/white viscous fluid
 visualization  visualization Brownish liquid
 

dynamic viscosity

A

B

A+B

25℃, mPa·s GB/T 10247-2008 20,000± 10,000
25℃, mPa·s GB/T 10247-2008 35±10
25℃, mPa·s GB/T 10247-2008 2,000±800
 

density

A

B

A+B

25℃, g/cm3 GB/T 15223-1994 1.80±0.05
25℃, g/cm3 GB/T 15223-1994 1.23±0.05
25℃, g/cm3 GB/T 15223-1994 1.75±0.05
Operational time 25℃ min 150g

Viscosity to 100000mPa·s

GB/T 10247-2008 60~120
Gel time 25℃ hrs 150g GB/T 10247-2008 4~8
 matching  proportion by weight —- A  :B=100  :10
 condition of cure ℃/h —- 25℃/ 72 h or 70℃/3h
 

 Characteristics after curing

 project Units or conditions  criterion of detection JOMP2651
 pigment  visualization  visualization Black or white
 hardness Shore D GB/T 531-2008 45±5
 water absorption 24hrs, 25℃ , % GB 8810-2005 <0.2
 tensile strength MPa GB/T 528-2009 7.0
 elongation % GB/T 528-2009 50
 shear strength MPa, Fe-Fe GB/T 6328-86 1.5
 shear strength MPa, Al-Al GB/T 6328-86 1.5
Suitable for potting of various components
 thermal conductivity W/m.K GB/T10297-1998 1.30
Glass transition temperature Tg GBT 11998-1989 10
 mass resistivity 25℃ , Ω·cm GB/T 1692-92 1.5*1014
 insulation strength 25℃ , kV/mm GB/T 1695-2005 18
 dielectric constant 50Hz ,25℃ GB/T 1693-2007 4.50
 dielectric loss 50Hz ,25℃ GB/T 1693-2007 0.012
 line shrinkage % HGT 2625-1994 1.0
 linear thermal expansion μm/( m ,℃ ) GBT 20673-2006 <Tg, 35

>Tg, 120

Application temperature GBT 20028-2005 -50~130
Flame retardant rating UL UL94 V-0

Order packing

JOMP 2651 A/B polyurethane potting compound,

Part A, packaged  32 kg/barrel,

Part B, package 3.2kg / pot

Storage temperature:

10-30℃, the storage period

of material A is 12 months; the storage period

of material B is 6 months.

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