Thermal Conductive Polyurethane Potting Compound（0.82W）

Thermal Conductive Polyurethane Potting Compound

Product features

The JOMP 2606 A/B  is a solvent-free, two-component casting resin, based on  Polyurethane. The resin (A) consists of organic compounds with hydroxyl-groups whereas the hardener (B) is based on isocyanates. By mixing both components in a ratio by weight of  100:20 a semi-tough casting resin is achieved via chemical reaction. The product exhibits no measurable change in volume after curing.

The resin is used for filling, coating and casting. The product adheres well to metals and plastics. It contains flame retardant additives.

Low viscosity, fast curing in several hours

Excellent performance on low-temperature and aging

Excellent and stably electrical dielectric

Very low Water absorption

Good adhere to most metals and plastics

Applications

It  is  specifically  formulated  for  automotive  sensors,  switches,  transformers  and  other  electrical  devises requiring environments protection.

Technical  performance

 

Item		Unit	Method	JOMP 2606 WT	JOMP 2606 BK
Appearance	A	—	Visual inspection	Black liquid/White liquid
	B		Visual inspection	Brown liquid
	A+B		Visual inspection	Black liquid/White liquid
Viscosity	A	25℃ mPa·s	GB/T 10247-2008	2,000-6,000
	B		GB/T 10247-2008	20-40
	A+B		GB/T 10247-2008	800-1200
Density	A	25℃ g/cm3	GB/T 15223-1994	1.58±0.05
	B		GB/T 15223-1994	1.23±0.05
	A+B		GB/T 15223-1994	1.53±0.05
Mix ratio		By weight	—-	A: B=100:20
Pot life		25℃ min ， 150g	GB/T 10247-2008	30-40
Initial curing time		25℃ , 55%RH,hr	GB/T 10247-2008	10-12
Cure condition		℃/h ， 100g	GB/T 10247-2008	25℃/24h or 80℃/2h

According to the quantity of mixing glue,  174g.

Properties after cured
Item                         Unit                      Method                                             JOMP 2606-WT        JOMP 2606-BK
Hardness	Shore-A	GB/T 531-2008	82 ± 5
Dielectric strength	25℃ , kV/mm	GB/T 1695-2005	20
Thermal conductivity	W/m.K	GB/T10297-1998	0.82±0.03
Volume resistivity	25℃ , Ω·cm	GB/T 1692-92	1.2*1014
Dielectric constant	50Hz ，25℃	GB/T 1693-2007	4.3
Elongation	%	GB/T 528-2009	50%
Tensile strength	25℃ ,Mpa	GB/T 528-2009	7.2
Shear strength	Concrete (dry),Mpa	GB/T 7124-2008	4.5 Mpa	4.5 Mpa
Shear strength	25℃,Mpa	GB/T 7124-2008	Fe:     5 Mpa Al:    3.5 Mpa	Fe:    5 Mpa Al:    3.5 Mpa
Glass transition temperature	℃	DSC	-5
Loss factor	25℃@1 MHz	GB/T 1693-2007	0.015
Curing shrinkage	%	HGT 2625-1994	1.0
Coefficient of linear expansion	ppm	GBT 20673-2006	<Tg, 55 >Tg, 140	<Tg, 55 >Tg, 140
Working temperature range	℃	GBT 20028-2005	-50～ 150

Process with  dispenser

preparations

material preparation

Strilling in the original drum, then pouring into dispenser. To avoid  bubbles  inside of finished  products,  both tank should  be  usually  kept 40 to  60  minutes  under the vacuum pressure 0-2mmHg.

Max tolerance

Mixing proportion of deviation may affect mechanical properties, tolerance should be less than  1%.

other

Through the production, should always maintain the tank airtight. the compressed gas should be dry  If need, otherwise part B will become sticky, and influence the mechanical properties.

Process with  Manual

1. Reclaiming:material a of this product contains functional filler powder, and there will  be clear liquid on the upper layer of the glue liquid. Before use, it is necessary to mix the glue  liquid of the original  package evenly, and then reclaim the material for use . After the  reclaiming, the original package shall be sealed in time to prevent excessive contact with water. After exposing the  rubber to air for a long time,  it  may lead to the  bubbling of AB mixture .  If possible, the  raw packaging of material a can be placed in a heat preservation environment of more than 30 degrees .

2. Operationitems: material B will absorb water and  hydrolyze when exposed to the atmosphere . The phenomenon is turbidity  until caking. Material a also needs to be stored away from  moisture to avoid  excessive  bubbles during solidification . The environment of curing process should be controlled as low as possible, and the relative humidity should not exceed 60%
3.  Preheating:thedevice to be poured should be dried at 70-80   ℃  for 1-2  hours.  It can also reduce the temperature and extend the heating time to remove moisture from the device . The viscosity of JOMP 2608 will increase at low temperature,  and the material can be preheated to 25 ℃ ~ 45 ℃ , which is easy to use

4. Defoaming: vacuumize the a \ B drum and mix it at the same time to ensure that the a \ B solution is vacuum and free of bubbles before  mixing.

5. pouring:mix the mixture into the device through the static mixer, the gel time  is about 40mins .
6. Curing:25  ℃  / 6 hours, 24 hours for complete curing. The ambient humidity should be less than 70% , and the curing time should be extended when the temperature is low .

First-Aid  Measures

Description of first aid measures

Remove contaminated clothing.

If inhaled:

If difficulties occur after vapour/aerosol has been inhaled, remove to fresh air and seek medical attention.

On skin contact:

Wash thoroughly with soap and water.

On contact with eyes:

Immediately wash affected eyes for at least  15 minutes under running water with eyelids held open, consult an eye specialist.

On ingestion:

Immediately rinse mouth and then drink  plenty of water, do not induce vomiting, seek medical attention.

Storage

The opened drum should be sealed, avoid moisture, and be used out in a short time.

Resin:

Frost-sensitive                                                          no

Recommended storage temp.                                15°C to 25°C

Shelf-life

Hardener:

Frost-sensitive

Recommended storage temp.

Shelf-life

Packing and transportation

JOMP 2606 BK (Black),

JOMP 2606 WT(White),

Part   A: 25 kg/Barrel ；      Part    B: 4 kg/Barrel

Transported as general chemistry 12 months in original packaging yes  15°C to 30°C ( not < 10 and > 50 °C) 6 months in original packaging

Security

Here no include the whole safety information. Before using, please read the technical sheet, MSDS and the packing label. You can get these information from JOME and distributors, About waste disposal, please

according to the MSDS or local regulations.

Technical advice

Whether verbal, in writing or by way of trials – is given in good faith but without warranty, and this also applies where proprietary rights of third parties are involved.  It does not release you from the obligation to test the products supplied by us    to   their suitability for the intended processes and uses. The application, use and processing of the products are beyond our control and therefore, entirely your own  responsibility. Should in spite of this, liability be established by us and used by you. We will, of course, provice products of consistent quality within the scope of our General of Sale and Delivery.