| Customization: | Available |
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| Adhesion Strength: | High Strength |
| Bonding Material: | Aluminum |
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RT-8500 is a high-performance, one-component, neutral-cure silicone sealant developed specifically for structural glazing. It cures quickly at room temperature upon exposure to atmospheric moisture, forming a permanently flexible and durable silicone elastomer. This professional-grade sealant delivers strong, long-lasting adhesion to a wide range of substrates-without the need for a primer.
- One-part, neutral-cure formulation that cures at room temperature
- High modulus with excellent flexibility, ensuring reliable structural bonding
- Strong adhesion to a broad range of curtain wall materials, including coated, enameled, and reflective glass, as well as anodized, oxidized, or coated aluminum and stainless steel
- Excellent mechanical properties with a joint movement capacity of ±12.5%
- Non-corrosive, non-toxic, and environmentally friendly neutral cure
- Outstanding performance stability across extreme temperatures from -50°C to +150°C
- Superior weather resistance, with excellent tolerance to UV radiation, heat, and humidity
- Structural glazing: bonding and sealing of glass and metal in structural systems, whether in factory settings or on construction sites
- Curtain wall fabrication and installation
- Structural glass assemblies in various building projects
| ITEM | SPECIFICATION | TEST RESULT | ||
| 1 | Appearance | Smooth, cream or heavy body, no bubble, no skinning, no gel. |
Smooth, cream or heavy body, no bubble, no skinning, no gel. |
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| 2 | Droop, mm | Vertical | ≤3 | 0 |
| Horizon | No deformation | No deformation | ||
| 3 | Extrusion Property | ≤10 | 2.0 | |
| 4 | Tack Free Time, h | ≤3 | 0.7 | |
| 5 | Hardness, Shore A | 20~60 | 57 | |
| 6 | Thermal Aging | Thermal Weightlessness, % |
≤10 | 6.9 |
| Cracks | No | No | ||
| Chalking | No | No | ||
| 7 | Tensile Viscosity 23ºC |
Modulus, MPa | ≥0.60 | 1.35 |
| Tensile Elongation, % | ≥100 | 227 | ||
| Damage, % | ≤5 | 0 | ||
| Modulus at Tensile 110% | - | 0.40 | ||
| Modulus at Tensile 120% | - | 0.56 | ||
| Modulus at Tensile 140% | - | 0.75 | ||
| 8 | Tensile Viscosity 90ºC |
Modulus, MPa | ≥0.45 | 0.86 |
| Damage, % | ≤5 | 0 | ||
1.What is your delivery time?
Our delivery time is 20 to 25 days for OEM order
2.Can you provide OEM service?
Of course we can do OEM services for customers brand
3.Can you make a new design for our brand?
Yes, our designers will make new designs as your requirements
4.Can I get some sample before order?
Yes free samples could be sent on your request
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