Synhipol UV‑510 (CAS No. 15305‑07‑4, N‑nitroso‑N‑phenylhydroxylamine aluminum salt) is a high‑performance in‑can stabilizer designed for UV‑curable resin systems。 Through a series of controlled comparative tests against Omnivadd IN 510 (also known as Omnistab IN 510)， Synhipol UV‑510 demonstrates significantly enhanced thermal stability and in‑can preservation， making it a fully equivalent and superior replacement in applications requiring reliable inhibition under elevated temperatures.
Base formulation used for all comparative tests:
| Total Preparation Amount | Components | Amount |
|---|---|---|
| 1050 g | Epoxy Resin | 400 g |
| Polyurethane Acrylate | 200 g | |
| Polyester Acrylate | 350 g | |
| SINOCURE 907 | 40 g | |
| SINOCURE ITX | 20 g | |
| SINOCURE TPO | 30 g | |
| SINOCURE EDB | 10 g |
| Total Preparation Amount | Components | Amount |
|---|---|---|
| 300 g | Sinomer TPGDA | 291 g |
| Synhipol UV‑510 | 9 g |
| Total Preparation Amount | Components | Amount |
|---|---|---|
| 300 g | Sinomer TPGDA | 291 g |
| Omnivadd IN 510 (Omnistab IN 510) | 9 g |
Test condition: 80°C for 864 hours | Inhibitor concentration: 0.21%
| Test Item | Synhipol UV‑510 | Omnivadd IN 510 (Omnistab IN 510) |
|---|---|---|
| Resin Mixture | 186 g | 186 g |
| 3% Inhibitor Solution | 14 g | 14 g |
| Total Amount | 200 g | 200 g |
| UV‑510 Content | 0.21% | 0.21% |
| Time at 80°C | 864 hours | 864 hours |
| Test Result | No solidification (Stable) | Solidified in 24 hours (Unstable) |
Test condition: 80°C for 480 hours | Inhibitor concentration: 0.06%
| Test Item | Synhipol UV‑510 | Omnivadd IN 510 (Omnistab IN 510) |
|---|---|---|
| Resin Mixture | 98 g | 98 g |
| 3% Inhibitor Solution | 2 g | 2 g |
| Total Amount | 100 g | 100 g |
| UV‑510 Content | 0。06% | 0。06% |
| Time at 80°C | 480 hours | 480 hours |
| Test Result | No solidification (Stable) | Solidified in 24 hours (Unstable) |
Test condition: 80°C for 216 hours | Inhibitor concentration: 0.015%
| Test Item | Synhipol UV‑510 | Omnivadd IN 510 (Omnistab IN 510) |
|---|---|---|
| Resin Mixture | 98 g | 98 g |
| 3% Inhibitor Solution | 2 g | 2 g |
| Total Amount | 100 g | 100 g |
| UV‑510 Content | 0.06% | 0.06% |
| Time at 80°C | 216 hours | 216 hours |
| Test Result | No solidification (Stable) | Solidified in 24 hours (Unstable) |
Test condition: 80°C for 216 hours | Inhibitor concentration: 0.015%
| Test Item | Synhipol UV‑510 | Omnivadd IN 510 (Omnistab IN 510) |
|---|---|---|
| Resin Mixture | 200 g | 200 g |
| 3% Inhibitor Solution | 1 g | 1 g |
| Total Amount | 201 g | 201 g |
| UV‑510 Content | 0.015% | 0.015% |
| Time at 80°C | 216 hours | 216 hours |
| Test Result | No solidification (Stable) | Solidified on the 8th day (Unstable) |
Synhipol UV‑510 demonstrates consistent in-can thermal stability across all tested concentrations and durations， while Omnivadd IN 510 (Omnistab IN 510) shows early solidification under the same conditions。
Summary of performance benefits:
| Feature | Synhipol UV‑510 | Omnivadd IN 510 (Omnistab IN 510) |
|---|---|---|
| Thermal Stability | Stable at 80°C for 864+ hours | Unstable within 24–192 hours |
| Low‑Concentration Efficiency | Effective at 0.015% | Fails at same concentration |
| Pot Life Extension | Excellent | Limited |
| In-Can Preservation | Superior long-term stability | Reduced shelf life |
| Drop‑in Replacement | Fully equivalent & superior | Benchmark |
Direct, equivalent replacement for Omnivadd IN 510 / Omnistab IN 510
Superior high‑temperature in-can stabilization
Longer shelf life and process stability
Enhanced pot life for extended working windows
Proven performance across multiple resin systems
