Polysiloxane Topcoat

Polysiloxane Topcoat

Acrylic Polysiloxane Topcoat is a two-component high-performance coating primarily composed of acrylic-modified polysiloxane resin as the main film-forming substance. It offers excellent weather resistance, chemical resistance, abrasion resistance, and corrosion resistance, along with outstanding decorative properties and environmental friendliness.
It is used for steel structures exposed to harsh industrial corrosive environments, including offshore steel structures, wind turbine towers, bridges, and more, serving as a protective and decorative topcoat.


Product Features


Effectively resists the impact of harsh environmental factors such as wind, rain, and UV rays, maintaining long-lasting brightness and color with a service life of over 20 years.

The coating is resistant to acids, alkalis, salt spray, solvents, and more, making it suitable for metal, wood, and concrete surfaces in chemical environments.

The product offers excellent corrosion resistance, effectively blocking the erosion of corrosive media on metal substrates and extending the service life of metal surfaces.

Aesthetic and Decorative Appeal: Offers a wide range of color options with high gloss, delivering exceptional decorative effects that enhance the texture and visual appeal of surfaces.


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Product Comparison


PropertyFluorocarbon TopcoatAcrylic Polyurethane TopcoatPolysiloxane Topcoat
Weather Resistance
ExcellentVery GoodExceptional
Chemical ResistanceExcellentExcellentExcellent
Aesthetic Appeal
Beautiful and Vibrant

Beautiful and Vibrant

Beautiful and Vibrant
Application MethodTwo-Component PackagingTwo-Component PackagingTwo-Component Packaging
Price★★★★★



Application Scope


It is suitable for steel structures that are long-term exposed to harsh environments, such as bridges and coastal facilities.

It can also be used for steel surfaces in severe industrial corrosive environments, including steel structure buildings, wind turbine towers, signal towers, and more, serving as a protective and decorative topcoat.


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Technical Parameters


Color
White and Various Colors
Volume Solids68
Flash Point
Above 28°C
Film Thickness

Dry Film: 40-50μm/coat

Wet Film:59-7μm/coat

Theoretical Spreading Rate0.104kg/m²/50 μm
GlossSemi-Gloss



Coating System


To achieve the optimal performance of the Acrylic Polysiloxane Topcoat, it is typically necessary to use it in conjunction with primers and intermediate coats to form a complete coating system.

Primers: Epoxy Zinc-Rich Primer, Inorganic Zinc-Rich Primer, Cold Galvanizing Paint

Intermediate Coats: Epoxy Intermediate Coat




Application Methods


    Application Temperature: 0°C to 40°C

    Mixing: Stir thoroughly using power tools or manual tools to ensure even mixing.

    Mixing Ratio: Base/ Hardener = 100/8 (by weight)

    Application Methods: Airless spraying, air spraying, brushing, or rolling (specialized)

    Attention :

    1.After adding the curing agent and mixing, the coating should be covered during use to avoid excessive exposure to air.

    2.If the lid is opened and there is unused coating left, it must be tightly sealed. Otherwise, it will react with moisture in the air, leading to the formation of a skin on the surface.

    3.This product can only be dried at room temperature and must not be oven-dried.

    4.The suitable humidity for application is between 40% and 70%.


Application MethodNozzle SizeOutlet Pressure
Thinning Ratio
Airless Spraying0.33mm-0.43mm10-15Mpa5-15%
Air Spraying----------10-20%
Brushing/Rolling----------In moderation


Drying Time & Recoating Interval

Temperature
5℃20℃30℃
Touch Dry5hrs
40mins40mins
Semi-Hard Dry
24hrs24hrs24hrs
Minimum Recoat Interval24hrs24hrs24hrs
Maximum Recoat Interval30days
30days30days


Surface Preparation:

    The steel surface to be coated must be thoroughly cleaned of oil, scale, rust, and old coatings. This can be achieved through methods such as shot blasting or sandblasting to meet the Swedish rust removal standard Sa2.5, with a roughness of 30–70 μm. Alternatively, manual rust removal methods can be used to meet the Swedish rust removal standard St3, with a roughness of 30–70 μm.

 

Safety Measures:

    1、Avoid contact with skin and eyes.

    2、If paint comes into contact with skin, wash with warm water or an appropriate cleaning agent. If paint comes into contact with eyes, rinse thoroughly with water and seek medical attention immediately.  。

    3、Ensure adequate ventilation. 

    4、The paint contains flammable substances. Keep away from sparks and prohibit smoking in the vicinity.

    5、Comply with all health and safety regulations on-site.

 

Storage:

    Store in a dry and cool environment, away from heat sources and open flames. Keep the container tightly sealed.

    Shelf life: 12 months from the date of production (at 25°C).

 

Please Notice:

    Since the conditions of product use are beyond our control, the information provided here does not constitute a warranty. We are only responsible for the selection of products. Due to the continuous development of our products and production processes, the content of this manual may be updated at any time. All information herein is subject to our confirmation. Before using the product, please ensure that you have the latest version of the manual.




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