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| 配方类型： |
SOAPS AND DETERGENTS |
| 配方说明： |
Rust Removal from Cement Patios |
| 配制方法： |
Dissolve one part sodium citrate in six parts of water, add six parts glycerin. Mix with powdered whiting to form a heavy paste. Spread a thick coating of the mixture on the stained area and allow to dry.
Repeat treatment if necessary. Badly stained areas may require a week or more for complete removal. This mixture is also effective in removing stains on siding caused by rusty nails. |
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