Performance Characteristics:
•Ketoxime-cure, one-component, easy to apply and anti-mold
•Fine paste texture, applicable for sealing and bonding
•Extremely high bonding strength and outstanding waterproof performance
•Solvent-free, formaldehyde-free, eco-friendly and non-toxic
•Neutral curing formula, non-corrosive to metal, coated glass, marble, granite and other construction materials
•Excellent weather resistance, resistant to temperature fluctuations, rain, snow and UV radiation
•No primer required under normal conditions, featuring good adhesion to most building materials
•Superior resistance to high and low temperatures: after curing, it will not become brittle, hard or crack at -50℃, nor soften or degrade at 150℃, retaining stable strength and elasticity
•Good compatibility with other neutral silicone sealants
SMT-555 Kitchen & Bathroom Anti-Mold Sealant is a one-component, neutral room-temperature curing, medium-modulus eco-friendly sealant. It is manufactured with modified polymer materials and a unique anti-mold formula, suitable for both indoor and outdoor use with long-lasting antibacterial properties, ideal for joint sealing in mold-prone environments. It boasts outstanding weather resistance and excellent tolerance to high and low temperature fluctuations, rain, snow and UV radiation. Priming is generally not required under normal conditions, and it delivers reliable adhesion to most construction materials. It is non-corrosive to metal, coated glass, concrete, ceramic, marble, granite and other building materials.
Application Areas
- Anti-mold sealing for various kitchen utensils, sanitary ware and sterile rooms
- Waterproof sealing for indoor and outdoor decoration projects of all types
Package
- This product is packed in standard 300 mL plastic sealant cartridges, 24 cartridges per carton. Custom filling service is available upon customer request.
| Test Items | Technical requirements | Typical Data | Test Method | |
|---|---|---|---|---|
| Appearance | Smooth and uniform paste, free of bubbles, skinning and gel lumps | Smooth and uniform paste, free of bubbles, skinning and gel lumps | Visual inspection | |
| Density, g/cm³ | 1.0±0.03 | 1.00 | GB/T 13477.2-2018 | |
| Sag Resistance | vertical, mm | ≤3 | 0 | GB/T 13477.6-2002 |
| Horizontal | No deformation | No deformation | ||
| Tack-free time, min | 5-10 | 8 | GB/T 13477.5-2002 | |
| Extrudability, g/5s | ≥25 (Nozzle tip diameter: φ3.2 mm, operating pressure: 0.24 MPa) | 34 | GB/T 13477.4 | |
| Elastic Recovery Rate, % | ≥60 | 87 | GB/T 13477.17-2017 | |
| Tensile Modulus at 23℃, MPa | ＞0.4 | 0.5 | GB/T 13477.8-2017 | |
| Elongation Adhesion | No Failure | No Failure | GB/T 13477.10-2017 | |
| Adhesion after Cold Tensile-Hot Compression Cycling | No Failure | No Failure | GB/T 13477.13-2019 | |
| Elongation Adhesion after Immersion | No Failure | No Failure | GB/T 13477.11-2017 | |
| Mass Loss Rate, % | ≤10 | 6.1 | GB/T 13477.19-2017 | |
| Mildew Resistance Grade | Grade 0 or Grade 1 | Grade 0 | GB/T 1741-2020 | |
Before application:
- Prior to application, compatibility tests between the sealant and contacting materials as well as adhesion tests on the substrates to be bonded shall be carried out.
Construction Method:
- All application surfaces must be clean, dry and free of contaminants.
- Fit the cartridge into a suitable caulking gun. Cut the nozzle according to joint width, then extrude sealant into the joint to ensure full contact between sealant and joint edges.
- Compact the sealant with a proper tool and scrape off excess material.
- Not for use as structural sealant.
- Do not apply when substrate surface temperature is below 5℃ or above 40℃.
- Unsuitable for permanently submerged areas or oil-bleeding wood.
- Not compatible with substrates exuding oil, plasticizers or solvents, such as surfaces of oil-impregnated wood.
- Not recommended for copper and polycarbonate (PC) materials.
- Avoid contact with rubber articles (rubber strips, rubber pads, etc.) to prevent yellowing.
- Avoid contact with acidic or alkaline chemicals (e.g. exterior wall cleaning agents) to prevent discoloration.
- The application surface shall be clean, dry and free of dirt.
- Use within the shelf life; expired product shall not be used.
- Application shall follow adhesion test procedures strictly.
- Prevent direct contact with skin and eyes. Do not ingest.
- Keep out of reach of children.
- Trace chemicals will be released during curing. Maintain adequate ventilation at the work area. The fully cured product is non-toxic to humans.
