High Temperature Silicone Sealant for Durable Seals
KASTAR HTS High Temperature Silicone Sealant is a premium, one-component silicone-based sealant expertly formulated to provide durable and heat-resistant sealing solutions for a wide range of industrial and construction applications. Its advanced silicone polymer technology ensures exceptional adhesion to materials such as metal, glass, concrete, and ceramics, delivering reliable and flexible seals that withstand extreme temperatures without degrading. Resistant to UV rays, thermal cycling, and chemical exposure, KASTAR HTS is ideal for both indoor and outdoor use in environments subject to high heat, such as automotive engines, industrial furnaces, and HVAC systems. With a smooth, non-sagging consistency, this sealant is easy to apply using a caulking gun, ensuring a professional-grade finish that maintains its integrity and performance over time, effectively preventing leaks, drafts, and corrosion in critical high-temperature joints and assemblies.
Appearance: Smooth paste
Density (g/cm³): 1.27
Sagging properties (mm): 0
Shore A hardness (A°): 35
Tack free time (min): 120
Tensile strength (MPa): 5.8
KASTAR HTS High Temperature Silicone Sealant is meticulously engineered to meet the demanding requirements of high-heat environments, providing exceptional performance and reliability. Its advanced silicone polymer formulation ensures superior adhesion to a wide range of substrates, including metal, glass, concrete, and ceramics, making it ideal for sealing high-temperature joints, flanges, and critical assembly points in industrial machinery, automotive engines, and HVAC systems. This “high temperature silicone sealant” offers outstanding resistance to extreme temperatures, UV radiation, and chemical exposure, ensuring that seals remain intact and effective even under severe thermal stress.
The sealant’s flexible and elastic properties allow it to accommodate thermal expansion and contraction, preventing cracks and maintaining watertight and airtight seals that enhance the longevity and efficiency of high-temperature installations. Its non-sagging consistency facilitates easy and precise application with a caulking gun, resulting in a clean and professional finish without dripping or running. Additionally, KASTAR HTS is resistant to mold and mildew, making it a hygienic choice for environments prone to moisture and contamination. With its long-lasting durability and minimal maintenance requirements, KASTAR HTS High Temperature Silicone Sealant is the trusted solution for professionals seeking reliable, high-performance sealing in demanding high-temperature applications.
- Automotive Engines: Seals gaskets, flanges, and joints in engines to prevent oil and coolant leaks under high temperatures.
- Industrial Furnaces: Provides durable seals around furnace doors, burners, and exhaust systems to maintain temperature integrity and prevent leaks.
- HVAC Systems: Seals ducts, vents, and other HVAC components exposed to high heat, enhancing energy efficiency and preventing air leaks.
- Exhaust Systems: Ideal for sealing exhaust manifold joints and other high-temperature areas in automotive and industrial exhaust systems.
| NO. | ITEM | DATA |
| 1 | Basic material | Modified Silane Polymer (MSP) Silicone |
| 2 | Color | Transparent, Clear, or Colored |
| 3 | Consistency | Paste |
| 4 | Application Consistency | Caulking Gun |
| 5 | Net Weight | 600 ml |
| 6 | Average Nonvolatile(FSTM 9A) | 95% |
| 7 | Temperature Resistance | -50℃ to 300℃ |
| 8 | Service Temperature limits | -40℃ to 250℃ |
| 9 | Storage Temperature | 5℃ to 35℃ |
| 10 | Application Temperature | 5℃ to 40℃ |
| 11 | Skin Drying Time(mins) | 100 |
| 12 | Density | 1.27 |
| 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 | Modified Silane Polymer (MSP) Silicone |
| 2 | Color | Transparent, Clear, or Colored |
| 3 | Consistency | Paste |
| 4 | Application Consistency | Caulking Gun |
| 5 | Net Weight | 600 ml |
| 6 | Average Nonvolatile(FSTM 9A) | 95% |
| 7 | Temperature Resistance | -50℃ to 300℃ |
| 8 | Service Temperature limits | -40℃ to 250℃ |
| 9 | Storage Temperature | 5℃ to 35℃ |
| 10 | Application Temperature | 5℃ to 40℃ |
| 11 | Skin Drying Time(mins) | 100 |
| 12 | Density | 1.27 |
| 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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