Toynol® Sample Request and Surfynol® Benchmarking Selection Guide

1. Sample Request: Fast-Track to a Tailored Match

As a distributor, you wish to request samples of FS-6502, Superwet-604, and Superwet-320 to replace the Surfynol® series. Tianjin Hi-Perferal (Toynol®) offers free sample support through the following process:

1. Define Your Needs: Inform us of the target Surfynol® grade (e.g., Surfynol® 104, Surfynol® 465) and application system (paints, printing inks, adhesives, etc.).

2. Precise Matching: Based on the system characteristics, we recommend the corresponding Toynol® grade and send samples together with the Technical Data Sheet (TDS) and recommended dosage.

3. Testing & Support: After sample dispatch, we provide online technical support to assist you in conducting the substitution test.

2. Surfynol® Replacement: Precise Benchmarking Recommendations

2.1 FS-6502 → Surfynol® 104/440 Series Replacement

Target Applications: Waterborne industrial coatings, printing inks, concrete water reducers where efficient wetting and foam/suppression balance are required.

Matching Rationale:

• FS-6502 features an acetylenic diol polyether structure, offering excellent compatibility with various resin emulsions, is APEO-free, and provides good cost-effectiveness.
• Static surface tension is low (0.1% aqueous solution <30 dyn/cm); its controlled foam and foam-suppression performance is comparable to Surfynol® 104, and it is silicone-free and oil-free, helping reduce cratering.

Recommended Dosage: 0.3%–0.5% (same as Surfynol® 104).

2.2 Superwet-604 → Surfynol® 465/61 Series Replacement (Low-Foam Type)

Target Applications: High-speed coating (gravure, roller), low-energy surface wetting (plastics, metals) with strict requirements on dynamic surface tension and foam control.

Matching Rationale:

• Superwet-604 is designed for dynamic wetting and foam control, remaining stable in 500 ppm hard water.
• Its dynamic surface tension (0.1% aqueous solution) is below 40 dyn/cm, and its foam-suppression ability surpasses conventional acetylenic diols, making it suitable for replacing Surfynol® 465 to achieve low-foam wetting.

Recommended Dosage: 0.3%–0.5%.

2.3 Superwet-320 → Surfynol® 104/Dynol® 604 Replacement (High Surface Activity)

Target Applications: Automotive paints, coil coatings, photovoltaic coolants, and other systems requiring extremely low static surface tension (<27 dyn/cm).

Matching Rationale:

• Superwet-320 achieves a static surface tension as low as 26.2 dyn/cm (0.1% aqueous solution), providing strong wetting of difficult-to-wet substrates while offering excellent foam control.
• Compared to Surfynol® 104, Superwet-320 exhibits an even lower surface tension at the same dosage, and can withstand high temperature (>100°C), making it suitable for demanding processes.

Recommended Dosage: 0.3%–0.5%.

3. Practical Steps for Substitution Testing

1. Initial Screening: In a clear varnish or blank formulation, add the Toynol® sample and the original Surfynol® product separately at the recommended dosage. Compare surface tension (static/dynamic), foam height (shaking method), and foam decay time.

2. Compatibility Verification: Add the sample to the target resin emulsion (e.g., acrylic, polyurethane) and inspect for flocculation, phase separation, or grit. Toynol® FS-6502, Superwet-604, and Superwet-320 have been extensively validated for compatibility with a wide range of resins.

3. Application Simulation: Evaluate dynamic wetting performance (e.g., number of fisheyes, leveling) and foam control during high-speed dispersion or coating. If excessive foam appears, combine with Toynol® defoamers such as Foamic-024 (0.2%–0.5%) or DF-80PG (0.1%–0.3%) for optimization.

4. Performance Comparison: After coating formation, test key indicators such as gloss, adhesion, and water resistance to confirm that the substitute has no negative impact. All Toynol® products are APEO-free and environmentally compliant.

4. Summary and Next Steps

Toynol® FS-6502, Superwet-604, and Superwet-320 can serve as corresponding replacements for major Surfynol® grades, offering advantages in cost-effectiveness, good compatibility, and APEO-free environmental compliance. To request samples, please provide your application details and the target Surfynol® grades. We will customize a matching plan for you along with a substitution testing guide. Apply now to accelerate your localization process.