Zinc-free products that match the performance of conventional zinc soap.
In relation to the environmental impact of heavy metals, and with the recent tightening of zinc monitoring, we have developed zinc-free products that match the performance of traditional zinc soaps as environmentally friendly alternative materials. These products are comparable in processing performance and help reduce the total amount of zinc.
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basic information
Structol HT207 - Non-zinc soap & saturated fatty acid ester mixture - Beige, tablet ■ Improved extrusion speed, roll release ■ Reduced viscosity/increased flow by improving dispersion of polar fillers ■ Lowered tanδ of silica compounds ■ Compliant with BfR XXI & 21CFR177.2600 (FDA) Structol HT254 - N-substituted fatty acid amide mixture - Beige, tablet ■ Ideal for high-filled silica formulations ■ Suppression of filler re-agglomeration ■ Maintained viscosity stability/extrudability during storage ■ No impact on dynamic properties after curing Structol WB42 - Fatty acid & fatty acid derivative mixture - Yellow, tablet ■ Applicable to most rubber formulations: improved processability/release properties ■ Improved extrudability ■ Enhanced filler dispersion/batch uniformity ■ Minimal impact on peroxide crosslinking Structol W33 Flake - High molecular weight natural fatty acid ester mixture chemically bonded to inert fillers - Brown, tablet ■ Applicable to most rubber formulations ■ Improved filler dispersion ■ Prevents adhesion to processing machinery
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Applications/Examples of results
Improvement of rubber processability ■ Filler dispersion ■ Die swell ■ Surface texture modification ■ Lubricity and release properties
Line up（4）
| Model number | overview |
|---|---|
| Structol HT 207 | Non-zinc soap & saturated fatty acid ester mixture, tablet |
| Structol HT 254 | N-substituted fatty acid amide mixture, tablet |
| Structol WB 42 | Fatty acid & fatty acid derivative mixture, tablets |
| Stractol W 33 Flake | A tablet of a chemically bonded high molecular weight natural fatty acid ester mixture with an inactive filler. |
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Company information
We offer a wide range of German-made processing aids for rubber under the "Structol" brand, starting with lubricants. For many years, we have been favored by numerous rubber manufacturers in Japan, including the four major tire manufacturers, as well as many large, medium, and small companies. In recent times, with rising electricity costs and increasing raw material prices putting pressure on cost reduction, "Structol" contributes to reducing production costs for rubber product manufacturers by improving productivity, enhancing quality, and reducing defects.