SY-119
Flame-retardant and High-temperature-resistant Sealant
Key Features
Why Choose SY-119
- High temperature stability (core feature), long-term high temperature resistance, and resistance to thermal shock
- Excellent filling properties with good sealing and bonding performance. It can bond various substrates such as metals (steel, aluminum), ceramics, glass, and high-temperature plastics, and the bonding strength does not decrease under high temperatures.
- Chemical resistance: Some products can resist erosion from acids, alkalis, oil stains, organic solvents, and high-temperature steam.
- Aging resistance: It is not prone to oxidation or cracking under high temperatures, ultraviolet rays, and humid conditions.
Application
Oven gasket, high-temperature steam pipeline, hot oil pipeline flange connection seal, as well as valve core and valve body seal of high-temperature valves, boiler water-cooled wall, superheater seal, steam turbine cylinder joint seal, cylinder head and cylinder body joint, exhaust manifold seal, microwave oven cavity seal, etc. Product
Quick Specs
- Appearance
- The cream-like substance is fineand even, and comes in colors such as red, bright black and porcelain white.
- Tack-free time (23 °C; 50 % RH)
- 5 ~ 15 min
- Density
- 1.4±0.1 g/cm3
- Hardness
- ≥20
- Ultimate elongation
- ≥300%
Specifications
Technical Parameters
| Parameter | Value |
|---|---|
| Appearance | The cream-like substance is fineand even, and comes in colors such as red, bright black and porcelain white. |
| Tack-free time (23 °C; 50 % RH) | 5 ~ 15 min |
| Density | 1.4±0.1 g/cm3 |
| Hardness | ≥20 |
| Ultimate elongation | ≥300% |
| Tensile strength | ≥2.5MPa |
| Construction temperature | -5 ~ 40℃ |
| Temperature tolerance range | -50℃ ~ 320℃ |
| Cure rate / curing speed (23 °C; 50 % RH) | ≥1.2 mm/24h |
| Colour | Black, White, Grey, Red |
Data Sheets
Specification Documents
Solutions
Related Solutions
Explore how SY-119 fits into our comprehensive sealant solutions for construction and industrial applications.
Resources
Technical Articles
Guides and insights related to flame-retardant and high-temperature-resistant sealant applications.
Silicone sealant manufacturer note: structural sealant warranty terms are typically defined by the project contract/specs, while product warranty follows Shuangyuan’s 3-year policy and TDS (contact us for selection support such as SY-9900 where applicable).
A simple way to distinguish bulging vs bubbling and assess whether the issue is more likely related to the sealant or the substrate, based on surface appearance and cross-section inspection.
Silicone sealant manufacturer tip: select the right sealant by matching the cure system and substrate compatibility, then confirm performance requirements against the product TDS (contact us for selection or OEM support if needed).
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