Traditional renovation of old houses is often accompanied by high demolition costs, severe construction pollution, and long project completion times.
SNYTO's new-generation water-based tile recoloring solution offers a more efficient alternative: no demolition, no relocation, and only a short construction period to completely renew wall and floor tiles throughout the property. With low cost, excellent environmental performance, and outstanding weather resistance, it provides a one-stop solution for yellowed, aged, and outdated tiles, making it easy to upgrade the appearance and quality of old living spaces.
I. Two Solutions for Different Application Requirements
Ceramic tile surfaces are smooth, dense, and hydrophobic, making it difficult for conventional coatings to achieve good adhesion. To meet different application requirements, we offer two water-based tile recoloring solutions:
Provides a higher crosslink density, superior overall performance, and excellent cost-effectiveness. It is ideal for renovation projects requiring high water resistance, weather resistance, and abrasion resistance.
SN-7520 features excellent hydrolytic stability and storage stability. Long-term storage does not affect adhesion. It can be added directly during paint preparation, making application more convenient while delivering excellent performance.
II. Performance Evaluation of the Solution
1. Outstanding Adhesion
The KW-8307 + SN-7560 / SN-7520 systems achieved Grade 0 adhesion. Excellent adhesion was obtained after overnight curing, and even after immersion in water at 40°C for 40 days, the coating maintained excellent wet adhesion (tested immediately after water immersion).
| Test Item (Adhesion) | KW-8307 + SN-7560 | KW-8307 + SN-7520 |
|---|---|---|
| Overnight – 7 Days | Grade 0 | Grade 0 |
| Wet Adhesion | Grade 0 | Grade 0 |
2. Excellent Water Resistance
Test Results: No blistering, no peeling, and the coating film remained intact.
Immersion in water at 40°C for 40 days:
3. Storage Stability
Thanks to the outstanding hydrolytic stability of SN-7520, the coating system maintains excellent storage stability after formulation. Following storage at 50°C for 30 days, the viscosity remained stable and adhesion achieved Grade 0–1.
| Test Item | Test Result | Test Standard |
|---|---|---|
| Initial Viscosity | 83.2 KU | GB/T 23999-2009 |
| Viscosity after Storage at 50°C × 30 Days | 84.3 KU | GB/T 23999-2009 |
| Adhesion after Storage at 50°C × 30 Days | Grade 0–1 | GB/T 9286-2021 |
4. Other Key Performance Data
In addition to excellent adhesion, water resistance, and storage stability, the KW-8307 + silane coupling agent system also delivers outstanding hardness, abrasion resistance, slip resistance, and weather resistance.
| Test Item | Performance Requirement | Test Result | Test Standard |
|---|---|---|---|
| Pencil Hardness (Scratch) | Measured Value | H+ | GB/T 6739-2022 |
| Weather Resistance (QUV 800 h) | Color Difference ΔE ≤ 2 | 1.3 | GB/T 23987-2009 |
| Dry Coefficient of Friction | > 0.5 | 0.71 | GB/T 4100-2015 |
| Abrasion Resistance | Measured Value | 0.006 | GB/T 23999-2009 |
Note: All data were obtained using standard laboratory test methods.
III. Recommended Auxiliary Additives
The following auxiliary additives are recommended for both one-component and two-component tile recoloring systems:
| Additive Type | Recommended Product | Performance Features |
|---|---|---|
| Wetting Agent | SN-4741 | Excellent substrate wetting capability with low foaming. |
| Dispersant | SN-1790 | Broad compatibility, excellent viscosity reduction, and high storage stability. |
| Defoamer | SN-6792 | Excellent defoaming performance with good compatibility. |
| Defoamer | SN-6724 | Designed for the grinding stage, providing excellent foam elimination and suppression with good post-grinding compatibility. |
| Leveling Agent | SN-3781 | Excellent long-wave and final-stage leveling performance without affecting intercoat adhesion. |
| Anti-settling Agent | SN-T9350A | Forms a card-house structure after dispersion, providing excellent anti-settling and anti-syneresis performance. |
IV. Typical Applications
This solution is suitable for a wide range of ceramic tile recoloring applications:
