KASTAR 4000 Silicone Elastic Roof Waterproof Coating
KASTAR 4000 Silicone Elastic Roof Waterproof Coating is a high-performance solution specifically developed for exposed building roofs. Featuring high elongation and non-corrosive properties, it provides a strong waterproof barrier with superior UV, acid, and alkali resistance. Ideal for steel tiles and power equipment, it ensures long-term weatherproofing and easy maintenance. (342 characters)
KASTAR 4000 Product Description
KASTAR 4000 Silicone Elastic Roof Waterproof Coating is an advanced one-part silicone system engineered for the most demanding outdoor environments. With its exceptional high elongation and non-corrosive chemical structure, this coating forms a seamless, flexible shield that moves with the building’s thermal expansion. It offers unmatched resistance to ultraviolet rays, oil, and water, maintaining its integrity under extreme high and low temperatures. Whether for commercial roofing or industrial facades, it stands as one of the most durable weatherproof products available today.
Beyond standard waterproofing, KASTAR 4000 excels in specialized industrial applications. Its excellent adhesion and high electrical insulation make it a top choice for protecting sensitive equipment, including substation, power distribution, and transmission facilities. From underground spaces to color steel tile surfaces, this versatile coating provides a robust anti-corrosive layer that simplifies maintenance and extends the life-cycle of your infrastructure.
Specification
| Main ingredients | Silicone elastic waterproof coating |
| Net content | 20Kg |
| Quality Guarantee Period | 12 months |
| Product Features | Weather resistance, corrosion resistance, waterproof, high and low temperature resistance, UV resistant acid and alkali resistance, oil and water resistance, electrical insulation |
| Construction Methods | Scratch coating, rolling coating, spray coating |
| Color | Black, White, and gray (OEM customizable colors) |
Key Features and Advantages of KASTAR 4000 Silicone Elastic Roof Waterproof Coating
- Enhanced Roof Longevity: Designed to protect against weathering, cracking, and UV degradation, KASTAR 4000 extends the lifespan of roofing materials by forming a durable, flexible, and long-lasting barrier.
- Energy Efficiency: With high solar reflectivity, the coating reduces heat buildup on the roof surface, lowering the need for air conditioning and contributing to significant energy savings while maintaining a cooler indoor environment.
- Low-Maintenance Solution: Its waterproof and mildew-resistant properties minimize upkeep by keeping the roof clean and well-protected, reducing maintenance costs and effort over time.
- Damage Prevention: KASTAR 4000 effectively seals small cracks and imperfections, preventing further roof deterioration and minimizing the risk of costly repairs in the future.
- Versatility Across Roof Types: This advanced coating bonds seamlessly with a variety of roofing materials, including metal, asphalt, concrete, and more, making it suitable for residential, commercial, and industrial applications.
UV resistant

Acid and Alkali Resistant
Electrical insulation

Strong adhesive performance

Oil and water resistance

Waterproof

Corrosion resistance

Weather resistance
Construction method
- Base layer treatment: the surface of the base layer is required to be clean and solid, and no sanding, floating dust and other phenomena are allowed;
- Joint treatment: If the surface with more than 3mm cracks, it should be filled with MS polymer sealant, and then coated after drying;
- Construction method: Construction can be done by brushing, rolling, spraying, etc., generally painting 2 times, each painting reference dosage is about 1kg/㎡, the total thickness of the coating film is 0.8~1mm, and the painting interval is 4-12h, depending on the weather conditions;
- Recommended dosage: ≥1kg/㎡.
Range of application
Suitable for a wide range of applications, KASTAR 4000 Silicone Elastic Roof Waterproof Coating is ideal for underground building spaces, the surface of color steel tiles, and waterproofing building roofs. Additionally, it provides excellent insulation protection for various equipment, including substation, power distribution, and transmission equipment, ensuring durability and reliability in diverse environments.
- Building roof
- Aerospace
- Shipbuilding industry
- Insulation protection
- Bridges
- Industrial facilities
Note
- When constructing on cement and concrete substrate, please wait until the substrate is completely dry and passed the maintenance period before constructing;
- Before the coating is fully cured, please do not carry out other works that may damage the coating;
- For unused coating, please keep the inner package sealed to avoid curing;
- If the coating gets into the eyes inadvertently, please rinse the eyes immediately with water and seek timely medical treatment.
Frequently asked questions
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