Performance Characteristics:
•One-component, ready-to-use
•Excellent workability
•Anti-sagging
•Outstanding adhesion to various substrates
•Paintable and stainable surface
•Eco-friendly & low odor
SMT-GP99 Water-Based Eco-Friendly Gap Filler is a one-component, water-based acrylic environmentally friendly gap filler. It is suitable for indoor dry-area applications such as joint edge finishing and beautification, as well as crack repair on wall surfaces. It exhibits low internal stress, which helps protect the integrity of paint, wallpaper, or delicate substrates at the joint area. It offers good adhesion to concrete, plastics, wood, and other common building materials.
Application Areas
- Edge finishing and beautification for dry-area applications including cabinets, wall panels, and wallpaper
- Sealing of gaps around interior doors and windows
- Edge trimming for skirting boards and PU moldings
- Repair of cracks on interior wall surfaces
Package
- This product is supplied in standard 300ml sealant cartridges, 24 cartridges per carton. Custom filling is available per customer requirements.
| Test Items | Technical requirements | Typical Data | Test Method | |
|---|---|---|---|---|
| Appearance | Fine and uniform paste | Fine and uniform paste | Visual inspection | |
| Density, g/cm³ | 1.52±0.03 | 1.53 | GB/T 13477.2-2018 | |
| Extrudability, g/5s | ≥60 (Nozzle tip diameter: φ3.2 mm, operating pressure: 0.4 MPa) | 90 | GB/T 13477.4 | |
| Sag Resistance | vertical, mm | ≤3 | 0 | GB/T 14683-2017 |
| Tack-free time, min | 20-30 | 25 | GB/T 13477.5 | |
| Cure rate, mm/24h | ≥3.0 | 3.5 | GB/T 13477.22 | |
| Tensile Strength, MPa | ≥0.2 | 0.25 | GB/T 528-2009 | |
| Elongation at Break, % | ≥100 | 128 | ||
| Hardness, Shore A | 35-45 | 38 | GB/T 39693.4-2025 | |
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.
- Do not use in areas exposed to permanent water immersion.
- Not to be used for structural joints.
- Application is not recommended when the substrate surface temperature is below 5°C or above 40°C.
- Do not apply when relative air humidity exceeds 80% or substrate moisture content exceeds 12%.
- Application surfaces must be kept clean, dry and free of contaminants.
- Use within the product shelf life; expired product shall not be used.
- Application shall be performed strictly in accordance with the adhesion test procedure.
- Avoid direct contact with skin and eyes. Do not ingest.
- Keep out of reach of children.
- The product releases trace amounts of chemicals during curing. Ensure adequate ventilation at the work area. It is non-toxic to human body after complete curing.
