Shanghai Sepna Chemical Technology Co.,Ltd

Two Part Polyurethane Sealant

Low Water Absorption Polyurethane Potting Compound SP2208◆Detailed Product DescriptionFeatures1.Low viscosity,fast curing2.Excellent performance on low-temperature and aging3.Excellent and stably

    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


    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


    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


    White/ Black Fluid

    transparent light yellow Fluid

    Viscosity CPS (25℃)

    1300 ± 500

    40± 20




    Ratio of weight

    A:B = 100 :66

    Ratio of volume

    A:B = 117 :100

    Hardness Shore A


    Water absorption (25℃ soak in 15 days)

    < 0.15 %

    Dielectric intesity kV/mm(25℃)


    Volume resistance(DC500V)Ω·CM


    dielectric dissipation factor,50HZ


    Flammability class UL 94


    Application temperature ℃


    Service temperature(UP to 1hr) ℃


    Test in the cup  

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

    Weight (A/B)



    Ingredient temperature



    Mixing time



    No flowing time




    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.



    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%.


    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


    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


    Part A : 200kg/drum                      

    Part B:200kg/ drum                       


    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, 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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