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SunFactant W240

Substrate Wetting Additive

SunFactant W240 is a special multifunctional surfactant. It exhibits low static and dynamic surface tension and low-foam properties in water-based systems. Widely used in inks, varnishes, adhesives, waterborne coatings and other fields, it delivers outstanding wettability and excellent foam control performance

Product Features
Product Applications

1781749888891037.png Improve silicon wafer yield: Superior wettability enables rapid wetting on diamond wire surfaces, strengthens protection of diamond wires, and enhances lubrication and cooling effects. This reduces defects such as wire marks and TTV, and increases the yield of Grade A silicon wafers.

1781749888891037.png Adapt to the development trend of cutting fluids: SunFactant W240 features powerful wetting ability to rapidly wet steel wires and deliver lubrication and cooling performance. It accommodates the trend toward higher wire speeds and increasingly thinner diamond wires.


Product Specifications

Physicochemical Indexes of SunFactant W240

Test Items

Typical Values

Appearance (25°C)

Pale yellow or yellow transparent liquid

Color, Hazen

≤400

Cloud Point (10% in 25% BDG), °C

45.0-51.0

pH Value (1% Aqueous Solution)

5.0-7.0

Moisture, %

≤1.0

Surface Tension (0.1%, 6 Bubbles), mN/m

34-38

Surface Tension (0.1%, 1 Bubble), mN/m

32-36


Packaging & Storage

1781749888891037.png Packaging: 200L drums, IBC totes or customized as required by customers.

1781749888891037.png Storage: Store this product in a dedicated warehouse or designated area. When kept in original sealed packaging at ambient temperature away from direct sunlight, the shelf life is 24 months.


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