Toynol® BWA-930 Substrate Wetting Agent
Toynol® BWA-930 Substrate Wetting Agent for Waterborne Systems
Abstract
Toynol® BWA-930 is an acetylenic diol derivative surfactant developed to address substrate wetting challenges in high-speed application of waterborne adhesives, coatings and printing chemicals. It significantly reduces static and dynamic surface tension (static surface tension as low as 36.5 mN/m in a 0.1% aqueous solution), provides excellent low-foam performance (foam fully dissipated within 300 seconds), and effectively improves spreading and leveling on various substrates. Compared with conventional solutions, it offers good compatibility with waterborne resin emulsions, outstanding cost-effectiveness, and is APEO-free, making it a suitable option for high-performance waterborne systems.
Key Performance Indicators
| Performance | BWA-930 |
|---|---|
| Static surface tension (0.1% aqueous solution) | 36.5 mN/m |
| Dynamic surface tension (0.1% aqueous solution, at 6 bubbles/s) | 46.8 mN/m |
| Foam (1% aqueous solution, initial) | 3 mm |
| Foam (1% aqueous solution, 300 s) | 0 mm |
| Environmental profile | APEO-free |
Main Features and Advantages
- Highly efficient wetting: Rapidly reduces static and dynamic surface tension, ensuring thorough wetting of substrates during high-speed application of waterborne products.
- Low-foam performance: Well-designed molecular segments suppress foam generation during high-speed mixing or spraying, avoiding process interference.
- Excellent compatibility: Good compatibility with waterborne resin emulsions, subject to compatibility testing.
- Cost-effective and environmentally friendly: Effective at low use levels and APEO-free, meeting environmental requirements.
Recommended Application Fields
- Waterborne adhesives: Used in waterborne adhesive formulations for the packaging, construction and automotive industries to improve wetting on plastics, metals, wood and other substrates, increasing initial tack and final bond strength.
- Waterborne industrial coatings: Suitable for engineering machinery coatings and metal protective coatings, enhancing spreading on substrates, helping reduce defects such as cratering and fisheyes, and improving film appearance.
- Waterborne wood coatings: Used for furniture and flooring finishes to promote penetration into wood pores, enhancing color uniformity and film fullness.
- Waterborne polyurethane coatings: Optimizes leveling in leather finishing and textile coating, delivering uniform, smooth coatings.
- Paper coatings: Used in specialty and packaging paper coating to improve spreading and penetration, ensuring a uniform coating.
- Printing chemicals: Suitable for waterborne inks and varnishes, improving printability, print quality and efficiency.
Usage and Recommended Dosage
Addition sequence: Add after the main formulation components, stirring slowly until fully dissolved.
Dilution: May be added directly to the aqueous phase, or pre-diluted before use to ensure uniform dispersion.
Recommended dosage: Typically 0.1%–1.0% of the total formulation; determine the optimal level through dosage screening based on system properties and process conditions.
Notes: Compatible with most anionic/nonionic additives, but pre-testing of combined-formulation stability is recommended.
Safety and Storage
- Safety precautions: Wear safety glasses and gloves during handling. On skin contact, rinse immediately with clean water; if splashed into the eyes, rinse with plenty of water and seek medical attention.
- Storage conditions: Store sealed in a dry, cool, well-ventilated place, away from high temperatures and from heat, sparks and open flames.
- Packaging: 25 kg drums, 200 kg drums, 1000 kg drums.
- Shelf life: 24 months from the date of manufacture under recommended storage conditions.
Frequently Asked Questions
Q: What is the difference between BWA-925 and BWA-930 in performance? How do I choose?
A: BWA-925 has a slightly higher static surface tension (37.1 mN/m) but a lower dynamic surface tension (43.8 mN/m), making it more suitable for high-speed coating and other dynamic processes. BWA-930 has a lower static surface tension (36.5 mN/m) and spreads better on difficult-to-wet substrates. Choose based on both process speed and substrate properties.
Q: What are the practical advantages of the product’s low-foam characteristics?
A: Low-foam characteristics help avoid process interruptions and surface defects caused by foam during production, and are particularly suitable for high-speed mixing, spraying and other foam-prone processes, improving production efficiency and product yield.
Q: How do I determine the most suitable dosage for my system through testing?
A: Start from the midpoint of the recommended range (0.5%) and prepare gradient samples (e.g., 0.1%, 0.5%, 1.0%), then determine the optimal dosage by measuring surface tension, observing foam, and evaluating actual application performance.
Q: Is the product’s performance stable at elevated temperatures?
A: The acetylenic diol structure offers good heat resistance, and performance is stable within the normal process temperature range (≤80°C). If the system is exposed to high temperature for extended periods, we recommend verifying persistence through testing.
Contact Us
- For free samples, detailed technical data sheets (TDS) or safety data sheets (SDS), or any technical questions, please contact us:
- Company: Tianjin Hi-Perferal Advanced Materials Co., Ltd.
- Address: No. 2-1, Zhenghua Road, Caozili, Wuqing District, Tianjin
- Technical service hotline: 022-82910362
- Website: www.surfychem.com