| 摘要 |
A method for the repair of the inside of installed conduits comprises the following method steps: drying of the inside of the line by flow-through of pre-dried compressed air, removal of interior coatings by flow-through of a mixture of compressed air and particles of an abrasive medium with a mean exterior diameter of >0.8 mm and a specific weight of >3.0 gxcm-3 in an amount of >1.0 gxm-3, the mixture flowing through the line with a mean speed of >10 mxs-1, relative to normal pressure, and blowing out the line by means of pre-dried compressed air. The adhesive resin utilized for the subsequent coating contains, among others, a solvent-free 2-component resin and at least 5% by weight of finely dispersed inorganic oxidic adhesives.
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