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Abstract: If you are planning to wholesale best cheap and high quality two part polyurethane sealant China, or hot sale two part polyurethane sealant in China from professional two part polyurethane sealant manufacturers and suppliers and factory, please feel free to contact SEPNA, and welcome to check products price with us.
Two Part Polyurethane Sealant

If you are planning to wholesale best cheap and high quality two part polyurethane sealant China, or hot sale two part polyurethane sealant in China from professional two part polyurethane sealant manufacturers and suppliers and factory, please feel free to contact SEPNA, and welcome to check products price with us.

Low Water Absorption Polyurethane Potting Compound SP2208

◆Detailed Product Description

Features

1.Low viscosity,fast curing

2.Excellent performance on low-temperature and aging

3.Excellent and stably electrical dielectric

4.Excellent bonding, good water-proof and moisture-proof.

5.Very low Water absorption 

6.Bonding very well with most metals and plastics

Usage

Used for Casting and potting in water through the component,communication equipment,dashboard component, electronic spark control, electronic sensor, ect.

◆Data Table


SP2208 A

SP2208 B

Appearance

White/ Black Fluid

transparent light yellow Fluid

Viscosity CPS (25℃)

1300 ± 500

40± 20

Density

0.98±0.02

1.20±0.03

Ratio of weight

A:B = 100 :66

Ratio of volume

A:B = 117 :100

Hardness Shore A

70

Water absorption (25℃ soak in 15 days)

< 0.15 %

Dielectric intesity kV/mm(25℃)

>20

Volume resistance(DC500V)Ω·CM

1×1013

dielectric dissipation factor,50HZ

0.02

Flammability class UL 94

V-0

Application temperature ℃

-60~150

Service temperature(UP to 1hr) ℃

165

Test in the cup  

Test conditionMixing speed: 1500rpm, Agitator diameter: 50mm, The volume paper cup: 250ml

Weight (A/B)

100/66

g

Ingredient temperature

23

°C

Mixing time

15

s

No flowing time

3

min

Note:

①All data above were tested under standardized condition.

②All data listed in the chart were for the generalized item in the series; please refer to the related data sheet for special items.

③Storage condition has a direct impact to the products’ shelf life, Please refer to the instruction for special items’ storing.

◆Operation

Preparations

Material preparation:  Stirring in the original drum, then pouring into dispenser.

To avoid bubbles inside of finished products, both tank should be usually kept 30 to 50 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.

Suggestion of molding condition

Machine                                 

Mixing method                          

Material temperature  

Part A   25-30 ℃ 

Part B   25-30 ℃ 

low pressure Pouring machine 

recommended approach is to use static method

◆Package and Storage

Package                                  

Part A : 200kg/drum                      

Part B:200kg/ drum                       

Storage  

The opened drum should be sealed

Avoid moisture, and be used out in a short time

Shelf life: 12months for part A; 6months for part B                                        

◆Safety Operation Material

MSDS isn't included here. Please read TDS, MSDS and label carefully before operation. You can get MSDS from Sepuna or other distributors, or mail to service center sepuna@sepuna.cn, or call +86-400-882-1323.

◆Product Warranty

All product properties and application details based on information believe to be reliable and accurate. But you still need to test its property and safety before application. The advices we supply don't apply in any circumstances. Sepuna don't make assurance of any other applications outside the specification until Sepuna supply a special written guarantee. Sepuna is only responsible to replace or refund if this product is defective within the warranty period stated above. Sepuna makes it clear that will not be liable of any accidents.




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