| CAS No.: | 7128-64-5, 4404-43-7 |
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| EINECS: | 230-426-4 |
| Environmental Protection: | Yes |
| Color: | Green |
| Kind: | Fluorescernt Brighening Agent |
| Appearance: | Powder |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier | Product Name | Optical brightener OB (C.I. 184 / C.I.28 ) |
| MF | C26H26N2O2S |
| EINECS No | 230-426-4 |
| CAS No | 7128-64-5, 4404-43-7 |
| Chemical Name | 2,5-bis(5-tert-butyl benzoxazoly-2'-)thiophen |
| Appearance | Light green powder |
| Purity | ≥98% |
| Melting point | 198~202 °C |
| Volatile: | <0.5% |
| Package | 20kg per carton, 25/30kg per fiber drum with PE liner, or as per the customers' requirements. |
| Applications: It is widely used in thermoplastic such as PVC, PE, PP, ABS, PS, and unsaturated resin and paint, ink and oil soluble coatings. |
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| Properties: The product is light green or green powder, non-toxic and tasteless, can dissolve in alkane, fat, mineral oil, paraffin and most organic solvents, the absorption spectra of the largest value for 375 mm (in ethanol). |
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| Dosage: PVC whitening: 0.01~0.05%; to improve the light intensity: 0.0001~0.001% Polystyrene :0001~0.001%; ABS:0.01~0.05%; Polyolefin matrix: 0.0005~0.001% White matrix: 0.005~0.05% |
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How to use and apply paint?
Generally speaking, the interior wall paint is finished after the total package plastering. After the wall is built, the general contractor will perform two plastering steps, and the base surface will be basically flat in the second pass. Because the requirements for internal walls are higher than those for external walls, the requirements for flatness will be higher, so putty is generally approved. The function of putty is to make the wall flatter. Talc powder can also be used as putty, usually by mixing glue and talcum powder. However, it is rarely used now. Basically, they buy finished putty and just add water and stir. Under normal circumstances, putty will batch two to three times. For the first primer, use a thicker putty, and for the second primer, use a finer one. The third way depends on whether the situation needs to be approved. Each batch of putty should be polished, especially the last one. After polishing, remove the floating dust and start applying the primer. After the primer is dry, apply two top coats.
Paint construction methods generally include brushing, rolling, spraying, and batching. Brushing is the most cost-effective, but more time-consuming. The effect of rolling is relatively moderate in all aspects, not the most economical, nor the best effect, but relatively speaking, this is a construction method with a higher cost performance. The effect of spraying will be better, but it is not easy to repair. Batch has the best effect, but it is the most expensive. However, if you approve, you don't need to use too good paint. Ordinary latex paint has a good effect.
In recent years, due to the continuous improvement of people's quality, people have high level requirements for the whiteness and brightness of coatings. Therefore,add optical brightening agent into coatings has become a trend. Based on current industry experience, the most popular is optical brightening agent OB for coatings.
Suppliers with verified business licenses
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