Wesolok D offers these advantages
| Wesolok D | |
| More dispersible large-particle alumina | |
| Wesolok D alumina rigidizer is a more dispersible, larger particle size colloidal alumina than regular Wesolok. It is a powder ready for fast dispersion in water at 20 to 30% concentration to give stable colloidal alumina sols for rigidizing fiber shapes that are more refractory and safer to use than colloidal silicas, with less migration. | |
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| Fast Dispersing - | Alumina sols of 20-30% concentration can easily be prepared with minimal mixing. and no added acid needed. |
| Withstands Higher Temperatures - | High purity alumina provides for low reactivity and can be used to replace colloidal silica where greater refractoriness at use temperatures is required. |
| Rapid, Deeper Absorption - | The larger particle size, with its lower surface change and viscosity, absorbs rapidly and deeply for through rigidizing. |
| No Cristobalite - | Completely cristobalite free at use temperature, eliminating a common source of thermal shrinkage and health-related concerns. |
| Typical Physical Properties | |||
| Color | White | ||
| Consistency | Dry powder | ||
| pH (20% sol) | 3 - 4 | ||
| Average particle size (nm) | 70 | ||
| Concentration limit (sol)* | 30% | ||
| Loss on Ignition** | 7—8% | ||
| Toxicity | Non-toxic. Do not breathe dust. Dispersions are mildly acidic. Protect eyes from splashes. See MSDS | ||
| Packaging | Fiber drums, 400 lbs net, loose or 20 lb bags; cartons, 60 lbs net. | ||
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*Higher concentrations form thixotropic gels on standing **Typical value for Wesolok D bonded fiber products. |
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