GUIBAO 993 Silicone Sealant for Skylight
skylight silicone sealant, skylight sealant, silicone sealant, building sealant, architectural sealant, joint sealant, adhesive
Basic Uses
GUIBAO 993 Silicone Sealant for Skylight is a high performance silicone sealant specially designed for
- Glazing , watertight joint seal in skylight engineering
- Glazing and watertight seal for the ceilings over the waiting halls at airports, railway stations and bus stations
- Sealing other construction joints with greatly high movement or safety requirement
- One part, neutral room temperature cure
- Superior elasticity, low modulus, remain stable and flexible from –50 ℃ to 150 ℃
- Outstanding weatherability and resistance to UV, snow, rain, ozone, water and etc
- Excellent unprimed adhesion to most building materials
- Non staining or corrosive to most building materials
- Fast cure rate, easy to use
Colours
GUIBAO 993 is available in black and translucent.
Packaging
GUIBAO 993 is available in disposable cartridges (net 300ml), 24 pieces to a carton.
For more details, please download:
These values are not intended for use in preparing specifications
| Test Method | Property | Unit | Standard | Result |
| GB/T 13477 (ISO 7390) | Slump | mm | ≤3 | 0 |
| GB/T 13477 (ISO 8394) | Extrusion rate | ml/min. | ≥80 | 232 |
| GB/T 13477 (ASTM D2377) | Tack free time | h | ≤3 | 2.0 |
| GB/T 13477 (ISO 7389) | Extension recovery | % | ≥70 | 93 |
| GB/T 13477 (ISO 8339) | Tensile strength | MPa | ||
| 23℃ | ≤0.4 | 0.36 | ||
| -20℃ | ≤0.6 | 0.45 | ||
| GB/T 13477 (ISO 37) | Elongation at break | % | ≥300 | 426 |
| GB/T 13477 | Adhesion at fixed stretch | No failure | No failure | |
| GB/T 13477 | Adhesion after heat contract and cold extension | No failure | No failure | |
| GB/T 13477 | Adhesion after water immersion and UV exposure | No failure | No failure |
*ASTM: American Society for Testing and Materials
Complete technical information and literature, adhesion testing and compatibility testing results are available from GUIBAO.
Surface Preparation
Clean all joints removing all foreign matter and contaminants such as oil, grease, dust, water, frost, old sealants, surface dirt, or glazing compounds and protective coatings.
Application Method
Install back-up materials or joint fillers, setting blocks,
spacer shims, and tapes. Mask areas adjacent to joints to ensure neat sealant lines. Primer is generally not required for non-porous surfaces, but may be necessary for optimal seal performance of certain porous surfaces. So adhesion test is always recommended.
Apply GUIBAO 993 in a continuous operation using dispensing guns. Before a skin forms, tool the sealant with light pressure to spread the sealant against the backing materials and joint surfaces. Remove masking tape as soon as the bead is tooled.
