RTV Silicone Polyurethane Epoxy Electronic Potting Sealant for Junction Box

Product Description

Two Component Polyurethane Potting Sealant for Electronic
 

Product Description

2-part PU potting sealant

SP297
SP291LV (Low viscosity) 
 

SP297 is a solvent-free, high-performance two-component polyurethane encapsulant. The resin part

(component A) contains hydroxyl groups, and the curing agent (component B) is based on isocyanate.

After mixing A and B, it is cured to form an elastomer. The volume did not change significantly.

It can be cured between 15-65 degrees without bubbles, high volume resistivity, flame retardant grade

UL94 V-0 and other characteristics.
 

 SPECIAL CHARACTERISTICS

 

• High Performance
• Excellent Chemical Resistance
• Excellent Electrical Properties
• UL91 V-0
• Super Volume Resistivity
• Shore A 85
• Excellent Thermal Conductivity

 

APPLICATION EXAMPLES

• 1. Filling coating casting, metal and plastic bonding well;
  2. Casting of communication supplies, transformers, electrical and electronic equipment;
  3. Filling and sealing of charging pile

Specification Data Sheet

  

PROPERTY	STANDARD	UNITS	VALUE-SP297
Component	-	--	Part A	Part B
Appearance	Visual		Black liquid	Dark brown liquid
Viscosity	GB/T 10247-2008	mPa.s	7500±1500	200±50
Density	GB/T 13354-92	g/cm^3	1.5±0.05	1.2±0.05
Data details after mixing
Mixture ratio	-	Mass ratio	A:B=100:15
Mixing viscosity	GB/T 10247-2008	mPa.s	2000±500
Solid content	GB-T 2793-1995	%	>99
Operation time after mixing	GB/T 10247-2008	min	25±5
Tack free time		Min 25ºC/50%	50±10
Gel time	GB/T 10247-2008	Min 25ºC/50%	40
Curing speed	GB/T 10247-2008	100g (plastic cup) /65 ºC	30min
Hardness	GB/T 531.1-2008	Shore A	85±5
Tensile strength	GB/T 528-2009	Mpa	>4
Flame retardant grade	ANSI/UL-94-1985	UL94	V-0
Thermal conductivity	GB/T 10297-1998	W/m.k	0.64
Elongation at break	GB/T 528-2009 >	%	≥60
CTI value	GB/T 4207-2012	-	≥600
Dielectric strength	GB/T 1693-2007	kV / mm	> 20
Dielectric constant	GB/T 1693-2007	-	4.64
Dielectric loss coefficient 100kHz	GB/T 1693-2007	100kHz	0.1
Volume resistivity	GB/T 1692-92	Ω • cm	3.7 ×10^15
Water absorption	GB/T 8810-2005	24h, 25 ºC,%	24h/23ºC   0.12%      10d/23ºC   0.21%     0.5h/100ºC 0.09%
Application temperature	GB/T 8810-2005	ºC	-50-150ºC

Company information     

Shanghai Sepna Chemical Technology Co., Ltd is special for Polyurethane sealant MS polymer adhesive sealant for automotive glass, bus, and construction joint sealing, bonding. We have been 10+ years in this industry, acquired Switzerland PUNADE in 2005, as the leader of odorless technology in China. With Suzhou, Shanghai has two R&D bases.
At the same time. we have established an excellent sales service team and cooperated with the leading industry of VW, Volvo, Mercedes, Brilliance, Etc. Sepna's products have been widely used in the international market, mainly in North America, South America, Asia, Southeast Asia Middle East and Oceania, etc. Until now, she has serviced nearly 1000 enterprises all over the world.


 

Our products

 

APPLICATION SOLUTIONS:
1. Windshield sealant- SP86x
2. Automotive adhesive sealant-
      -PU structural adhesive
      -MS adhesive sealant
3. Electronic potting sealant
4. Powder coating sealant
5. Window & Door corner adhesive
6. Waterproofing coating
7. Expansion joint sealant
     - Self-leveling sealant
     - Paste sealant

Global Market

Our products

Part A: 25kg/pail
Part B: 6kg/pail
Mixing ratio: 100:15 by weight
 

Certificates

FAQ

1.Delivery time ?

   Normally, delivery time of sample order is 3 to 7 days, standard order is 7-20 days.

2.How to get free samples ?
   Contact with us to get free samples

3.How to be Sepna's distributor ?
  As the growing of Sepna's global business,we need to find more and more distributors and agents worldwide. Sepna will provide the best solution and service for our partners. For more information, pls contact with us directly

4.Any OEM/ODM service ?
  Sepna can offer the customer OEM label service,and will give the protection of the your right in your market.