Best Professional Silicone Sealant for Durability & Protection
KASTAR PS Professional Silicone Sealant is a top-tier, one-component silicone-based sealant meticulously engineered to deliver superior bonding and sealing solutions for a wide range of professional construction and industrial applications. Its advanced silicone polymer formulation ensures exceptional adhesion to materials such as glass, metal, wood, concrete, and masonry, providing durable and flexible seals that withstand the rigors of demanding work environments. Resistant to UV rays, extreme temperatures, moisture, and chemical exposure, KASTAR PS is ideal for both indoor and outdoor use, ensuring long-lasting performance and reliability. With a smooth, non-sagging consistency, this sealant is easy to apply using a caulking gun, allowing professionals to achieve a flawless, professional-grade finish that effectively prevents leaks, drafts, and corrosion in critical joints and assemblies.
Appearance: Smooth paste
Density (g/cm³): 1.28
Sagging properties (mm): 0
Shore A hardness (A°): 30
Tack free time (min): 100
Tensile strength (MPa): 5.8
KASTAR PS Professional Silicone Sealant is expertly formulated to meet the high standards of professional contractors and industrial applications, offering unparalleled performance and reliability. Its high-quality silicone polymer ensures strong adhesion to a wide variety of substrates, including glass, metal, wood, concrete, and masonry, making it ideal for sealing windows, doors, façades, bathrooms, kitchens, and industrial machinery. This “professional silicone sealant” provides outstanding resistance to UV radiation, extreme temperatures, moisture, and chemical exposure, ensuring that seals remain intact and effective even in the most challenging conditions.
The sealant’s flexible and elastic properties allow it to accommodate significant joint movement caused by thermal expansion, contraction, and structural shifts, preventing cracks and maintaining watertight and airtight seals that enhance energy efficiency and structural integrity. Its smooth, non-sagging consistency facilitates precise and easy application with a caulking gun, resulting in a clean and professional finish without dripping or running. Additionally, KASTAR PS is mold and mildew resistant, making it a hygienic choice for areas prone to moisture and contamination. With its long-lasting durability and minimal maintenance requirements, KASTAR PS Professional Silicone Sealant is the trusted solution for professionals seeking reliable, high-performance sealing in demanding construction and industrial projects.
- Window Installations: Creates watertight and airtight seals around window frames to enhance energy efficiency and prevent drafts.
- Door Installations: Provides airtight and watertight seals around door frames, enhancing energy efficiency and security.
- Bathroom and Kitchen Sealing: Ideal for sealing sinks, tubs, showers, and countertops to prevent water ingress and mold growth.
- Exterior Joints: Perfect for sealing expansion joints, façade seams, and other exterior construction joints exposed to the elements.
NO. | ITEM | DATA |
1 | Basic material | Silicone Polymer |
2 | Color | White, Clear, or Colored |
3 | Consistency | Paste |
4 | Application Consistency | Caulking Gun |
5 | Net Weight | 600 ml |
6 | Average Nonvolatile(FSTM 9A) | 92% |
7 | Temperature Resistance | -20℃ to 150℃ |
8 | Service Temperature limits | -10℃ to 120℃ |
9 | Storage Temperature | 5℃ to 35℃ |
10 | Application Temperature | 5℃ to 40℃ |
11 | Skin Drying Time(mins) | 100 |
12 | Density | 1.28 |
13 | Shrinkage(mm) | 0 |
14 | Tack free time(min) | 100 |
15 | Curing rate(2mm/h) | 24 hours |
16 | Solid content (%) | 92% |
17 | Shelf life | 18 months |
18 | Storage | Store in a cool, dry place away from direct sunlight. |
NO. | ITEM | DATA |
1 | Basic material | Silicone Polymer |
2 | Color | White, Clear, or Colored |
3 | Consistency | Paste |
4 | Application Consistency | Caulking Gun |
5 | Net Weight | 600 ml |
6 | Average Nonvolatile(FSTM 9A) | 92% |
7 | Temperature Resistance | -20℃ to 150℃ |
8 | Service Temperature limits | -10℃ to 120℃ |
9 | Storage Temperature | 5℃ to 35℃ |
10 | Application Temperature | 5℃ to 40℃ |
11 | Skin Drying Time(mins) | 100 |
12 | Density | 1.28 |
13 | Shrinkage(mm) | 0 |
14 | Tack free time(min) | 100 |
15 | Curing rate(2mm/h) | 24 hours |
16 | Solid content (%) | 92% |
17 | Shelf life | 18 months |
18 | Storage | Store in a cool, dry place away from direct sunlight. |

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