Ready to Ship
Fast dispatch
In stock

Two part electrical electronic circuit board potting compound silicone rubber

2-999 Kilograms
1000-9999 Kilograms
>=10000 Kilograms
Min. Order
2 Kilograms
$100.00 OFF Get the Coupon
Download the app to enjoy the coupon
Choose your specifications
Company Information

Shanghai Sepna Chemical Technology Co., Ltd.

CN Manufacturer, Trading Company
Response Time
Response Rate:
US$ 240,000+
9 Years Paid Supplier Gold Supplier Onsite Check Trade Assurance
Learn More

Quick Details

CAS No.: 9009-54-5
Other Names: Silicone Sealant
EINECS No.: 210-898-8
Place of Origin: Shanghai China
Classification: Double Components Adhesives
Main Raw Material: Silicone
Usage: Construction,Fiber &amp; Garment,Footwear &amp; Leather,Packing,Transportation,Woodworking,electronics
Brand Name: SEPNA
Model Number: SI2230
Type: Silicone sealant
Production name: electrical electronic circuit board potting compound silicone rubber
Usage: For LED Driver power inverter modules protection
Color: White/Black/Gray
Packing: 20 KG/ Barrel
Shelf life: 12 months
Certificate: ISO9001:2008
OEM: Accetable
Factory or trader: Factory
Keywords: Silicone Selant, Silicone Potting Compound
Advantage: Good quality
Selling Units: Single item
Single package size: 35X21X35 cm
Single gross weight: 22 KG
Package Type: Part A-20 KG/Bucket, Part B-20 KG/ Bucket.
Package Preview:
Product Description

Two part electrical electronic circuit board potting compound silicone rubber

SI2230 is two-component silicone based thermal conductive potting adhesive. It has a good fluidity after mixing, can vulcanize to deep layer in room temperature. The operation time can be adjusted according to the temperature. Used to potting protection of varied heat dissipation and temperature resistance components. Fully compliant with RoHS and SVHC REACH standard.

Key Features

1.Two-part 1:1 mixture addition type silicone adhesive
2.Low hardening shrinkage
3.Excellent electrical insulation in high temperature and stability
4.Good waterproof and moisture resistance
5. Excellent flame resistance

Typical Applications

Used for encapsulation of various modules, automotive module, LED Power driver modules, Solar panel junction box, EV charging column module, Lithium battery pack, Capacitor banks, Magnetic induction coils, Power inverters, etc.

Technical Data Table
VALUE of SI2230
Visual inspection
white / black viscous liquid
white viscous liquid
25°C, cps
25°C, g/cm3
Mixture ratio
Mass ratio
Viscosity of mixture
25°C, cps
Operation time
25°C, min
Cure condition
25°C/ 4 hour; 80°C/ 30min
Cured appearance
White/ Gray-black elastomer
Shore A
Thermal conductivity
Linear expansion coefficient
K-1, ppm
Dielectric strength
kV/mm, 25°C
Volume resistance
DC500V, ohm-cm
Loss factor
1 MHz
Dielectric constant
1 MHz
Application temperature
Flame resistance

This one is general silicone potting compound, the thermal conductivity is 0.8W/m.K, we also can do 1W/.mk, 1.5W/.mk, 2.4W/.mk. If you have interest, please fell free to contact with us. 

Directions for Use

1.Mixing uniformity in the packing before using, as there's part of filler sedimentation happens during storage.

2.Mix Part A and Part B by 1:1 mass ratio, after evenly mixed, pouring directly into the components or modules as per requirements. It's recommended to slowly pour along the walls of the implements, so as to reduce the bubbles happens.

3.Still the potted component to let out the bubbles. Can be cured by heat, about 30 minutes in 80°C. If cured under room temperature, about 4 hours.

--Vacuum defoaming can improve the performance of cured product.

--Seal the remaining products tightly after use.

--Low temperature will slow the curing speed, overheating will lead to curing speed too fast. Keep the constant temperature in workshop is recommended.

--It's hard for SI2230 to cure if contact with sulfur, amine, organotin and unsaturated hydrocarbon plasticizer. Common substances like rosin, natural rubber. For these should do test before application.

Packing & Delivery

Packing and Storage

Part A--20 KG/Barrel, Part B--20 KG/ Barrel

When stored at or below 25°C in the original unopened containers, this product has a usable life of 12 months from the date of production. Sampling test is necessary for products which exceed shelf life before taking use.

It's non-dangerous goods, can be transported as normal chemicals, CAUTION leakage during transport.

Related Products

Two component liquid waterproof silicone gel for electronics

Two component liquid epoxy and hardener potting compound

Two parts polyurethane resin potting compound for cable jont protection

RTV silicone adhesive sealant for electronics bonding and sealing

Thermal conductive silicone grease and lubricating silicone grease

Waterproof silicone conformal coating for PCB board

Our Company

Basic Information

Business Type:    Factory 
Main Products:   Silicone,Epoxy,Polyurethane
Productivity per year : 10,000 Tons                                            

Location:                       Shanghai, China (Mainland) 
Year Established:          2003
Employee: 105staffs, 20 technical and R&D staffs included

R&D Solution for electronics

Our products include RTV silicone adhesive sealant, two component silicone sealant, thermal conductive silicone potting material, thermal conductive silicone grease, lubricating silicone grease, silicone waterproof coating. Two parts liquid epoxy resin and hardener potiing material. Epoxy structure adhesive for metal/SMC bonding. Two parts polyurethane resin cable joint and other electronics application.

We have professional research and development team. We offer profession solution for customers. Please tell me your detail requirements, we will recommend you the most suitable products for you. We also can research a new product according to your requirements and applicaion.

Cooperation Bond
Our Service

1. OEM Manufacturing welcome: Product, Package... 

2. Sample order 

3. We will reply you for your inquiry in 24 hours.

4. after sending, we will track the products for you once every two days, until you get the products. When you got the goods, test them, and give me a feedback.If you have any questions about the problem, contact with us, we will offer the solve way for you.

5.We have different grade quality to meet your request, different usage.

6. We have professional R&D department, we can research new products according to your requirements.


1.Q:Delivery time ?
A: Normally,delivery time of sample order is 7 to 10 days, standard order is 15-20 days.

2.Q:How to get samples ?
A: Normally,Sepna offer our customer 1-2pcs or 200-400g free samples for quality testing.

3.Q:How to be Sepna's distributor ?
A: 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 our salesperson or call us:+86-400-882-1323

4.Q:Any OEM service ?
A: Yes. Sepna can offer the customer OEM label service,and will give the protection of the your right in your market.

5.Q:Do you have MOQ ?
A:Yes.Normally, MOQ is 2000pcs or 1000kgs. The trial order quantity can be smaller.