Type of steel of the liquid on the closed highway crash steel guardrail used Dacromet

The present invention belongs to the technical field of road infrastructure, particularly to steel on steel rails Dacromet highway crash for a blocking solution. This kind of blocking solution for steel on steel rails Dacromet highway crash, comprising the following ingredients: a silane coupling agent, zinc, aluminum, ethylene glycol, emulsifiers, dispersants, defoamers, hydroxyethylcellulose , reflective metal powder and deionized water. The closed steel guardrail VIS enhanced surface hardness of the steel highway crash, which greatly improves the corrosion resistance, the indicators not only far optimization process to the conventional hot-dip zinc standard, but much better than the prior art process Dacromet effect.