The available product information does not name a water-based polyurethane grade specifically formulated for rapid drying without surface defects. For wood sealing applications, the documented solution is the EP-8801 and OS-8802 two-component system. This solvent-free system is designed to provide ultra-low VOC wood sealing performance, provided that application conditions are properly controlled.
EP-8801 is a solvent-free, silicone-modified epoxy resin developed for two-component wood sealing primers. When combined with crosslinker OS-8802, it forms a coating system with high cross-linking density and effective sealing properties. The formulation is intended to support an attractive, warm wood appearance while meeting low-emission coating requirements.
Temperature is an important factor when applying the EP-8801 and OS-8802 system. The recommended construction temperature is 15-40°C. Applying the prepared two-component coating within this range can help maintain normal film formation and drying behavior.
At excessively low temperatures, the coating may develop a foggy appearance and require more time to dry. Maintaining appropriate ambient and substrate temperatures is therefore important when aiming for a clear, consistent sealing film.
EP-8801 is generally used with OS-8802 at an approximate 2:1 ratio. Since practical requirements can vary by substrate, process, and target performance, the final ratio may be refined through application testing.
| Item | EP-8801 System Details |
|---|---|
| Resin classification | Solvent-free silicone-modified epoxy resin |
| Crosslinking component | OS-8802 |
| Suggested blend ratio | Approximately 2:1, subject to test-based adjustment |
| VOC profile | Solvent-free and ultra-low VOC |
| Recommended application range | 15-40°C |
| Potential issue at low temperature | Film fogging and delayed drying |
| Main application | Two-component primers for wood sealing |
The primary stated use of EP-8801 is in wood sealing primers for indoor and outdoor wooden furniture. Related application coverage includes flexible material sectors such as textiles, printing leather, inks, and adhesives. The supplied information, however, does not provide specific EP-8801 performance test results for these individual applications.
No. EP-8801 is identified as a solvent-free silicone-modified epoxy resin. The supplied data does not classify it as a water-based PU grade.
Apply the EP-8801 and OS-8802 system at 15-40°C. The product guidance indicates that low temperatures can lead to a cloudy film surface and longer drying time.
The reference ratio is about 2:1. Adjustments may be made after experimental evaluation to suit the coating process and expected performance.
Guangzhou Guanzhi New Material Technology Co., Ltd. holds a QUALITY MANAGEMENT SYSTEM CERTIFICATE covering the research and production of environmentally friendly multi-purpose water-based polyurethane coating materials and high-performance environmentally friendly water-based coating additives. The company also holds a Certificate of Intellectual Property Compliance Management System Certification for applicable research, development, and sales activities.
The company serves coating-related customers in multiple industries, including major coating suppliers in China. For the EP-8801 wood sealing solution, it offers an R&D, manufacturing, direct-sales, and technical-service model. The stated minimum order quantity is 900 KG, typical delivery time is 7-10 days, and formulation reference support is available. For technical consultation, contact sophia@guanzhihg.com.
Guangzhou Guanzhi New Material Technology Co., Ltd. was founded in 2014 and provides R&D, manufacturing, sales, and technical services for water-based material technologies. Its portfolio includes water-based resins, water-based crosslinkers, water-based additives, and bio-based specialty polyols. With R&D and application centers in Guangzhou and Shanghai, more than 50 invention patents, and a stated annual capacity of 30,000 tons, the company supports customers in a range of industries.

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