| 配方类型： |
ELEMENTARY Preparations |
| 配方说明： |
soaps are made fron a fat or fatty acid and an alkali. they
lathetr and produce a foam which entraps dirt and grease. there are
many kinds of soaps.
cleaners contain a solvent, such as naphtha, with or without a soap.
abrasive cleaners are soap pastes containing powdered pumice, stone,
ailica, etc. |
| 配方组成： |
paraffin wax/10 oz
china-wood oil/10 oz
kerosene/2 1/2 fal
fatty acids/10 oz
waterproofing cement |
| 配制方法： |
stir until dissolved. paint or spray on cement walls, which must be dry. |
|
