Lithopone or sulphide of zinc white has been in general use for twenty years or more in many industries where a white pigment of considerable body or hiding power is required that is not subject to change like lead carbonate and has not the brittle character of zinc oxide, besides being sold at a lower figure than either of these. Nevertheless it is still comparatively new to the general painting trade. Because of our tariff protection its manufacture in this country has made great progress. Yet in spite of this and the duty imposed on it, the imports are still in excess of the quantity manufactured here. A short history of its origin will no doubt prove of interest to our readers.
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2025-08-14 09:46
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A well-functioning oil seal ensures that oil remains where it is needed, reducing friction and wear on machine parts A well-functioning oil seal ensures that oil remains where it is needed, reducing friction and wear on machine parts
The first step involves identifying the worn or damaged seal, which might show signs like visible wear, cracking, or deformation The first step involves identifying the worn or damaged seal, which might show signs like visible wear, cracking, or deformation
Signs of a failing oil seal include visible oil stains under the car, unusual noises during steering, or a wandering steering wheel Signs of a failing oil seal include visible oil stains under the car, unusual noises during steering, or a wandering steering wheel
