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Polyurethane potting sealants WPU-A80A/B

Description

Two-component encapsulating system based on polyurethane, formed from polyurethane, curing agents and additives by special production processing, it’s a flame retardancy polyurethane pouring sealant.

Excellent of the surface gloss after curing, excellent electrical properties and have flame retardant property, good of shock resistance and good chemical stability.

Applications

Encapsulation of electrical components of the electronic appliances for good of insulation, waterproof, flame retardancy

General properties

Test Item

Test Mothed/Conditions

WPU-A80A

WPU-A80B

Appearance

Visualization

White liquid

Brown liquid

Viscosity

25º C mpa.s

3000 - 7000

100 - 300

Density

25º C g/m³

  1. ± 0.05
  2. ± 0.05

Ratio of blend

Weight/Weight

100

20

Viscosity(blended)

25º C mpa.s

1000 - 2000

Pot life(60g)

25º C min

30 - 50

Gelation time(60g)

25º C min

60 - 90

Curing condition

º C/hrs

24 hrs

Storage validity

Sealed and storage Temp.below 25º C

6 months

6 months

Characteristics after curing

Item

Unit/Conditions

WPU-A80A/B

Hardness

Shore-A

80±10

Tensile strength

Mpa

1.5

Elongation

%

50

Volume resistivity

Ω.cm

4x1013

Permittivity 50HZ

--

Tangent angle loss 50HZ

--

Insulation Strength

kv/mm

12.5

Flame Retardancy

UL 94

V0

Surface Resistance

Ω.cm

1014

Use of temperature range

º C

-40 to 120

Environmental protection standard

Rohs+Reach Low halogen

Storage, Packaging

  1. Sealed and storage Temperature below 25º C after each operation
  2. Please see the term of validity in each packages
  3. Packages: A component is 25kg, B component is 10kg.
  4. The storage validity is 6 months, a little precipitate shall be occurred provided high temperature. Please stir the material before using.

Note: The above data was tested under the conditions of 70% humidity and 25º C Temperature, This is for your reference only.

(Product color can be adjusted)



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