Precautions for application of normal temperature marking paint of road marking machine

1. Before using the normal temperature marking coating, it shall be stirred evenly filtered with 60-100 mesh filter screen to avoid clogging the nozzle

2. The construction temperature is about 20 ℃, the applicable temperature is 4 ℃ -- 40 ℃, the construction below 4 ℃ shall be avoided as far as possible

3. Do add too much solvent to the normal temperature marking coating for dilution, otherwise the resin proportion in the coating will be reduced, leading to the marking off premature wear

4. When the standard dosage is 0.4-0.5kg/m2, the paint film is too thin, which will cause the marking to fall off wear too early.

5. Special coating for cement pavement shall be used for construction on cement pavement

6. Before construction, the road surface shall be cleaned to keep it clean free of oil pollution

7. The pavement must be dry during construction. The construction on the cement pavement after rain must wait until the surface layer base layer of the pavement are completely dry.

Now many new roads require hot melt marking. In the construction of hot-melt marking, the coating agent is one of the important reasons for whether the marking falls off. The same kind of hot-melt marking coating the same manufacturer has different quality in different construction sites. Among them, the coating of under coating agent plays an important role.

The new asphalt pavement is rich in a large number of asphalt organics, which has arbitrary miscibility with the adhesive petroleum resin in the coating, the construction temperature is 180-220 ° C. It is higher than the melting point of asphalt. In the construction, the petroleum resin asphalt (melted) mix melt into a whole, there is no clear interface between the road surface the marking line, thus increasing the interaction force.

The cement pavement itself is a hydrophilic material. The image points out that the cement pavement has the property of oil drainage, the adhesive force between the cement pavement the petroleum resin is small. At the same time, the cement pavement is rigid the deformation is small. The coating itself is thermoplastic, it is also steel in cold weather, while the common asphalt pavement under coating is non structural adhesive. In order to combine the two, it is required to have good toughness, the marking line will be impacted by various directions in use, which requires that the cement primer should have excellent impact resistance, while the asphalt pavement the coating form a whole, which is different the case the cement pavement the coating are separated, so the cement pavement should have a special under coating agent, the under coating must be used Agent, the under coating agent has excellent toughness impact resistance, generally synthetic elastomer.

Due to less asphalt on the surface of the old asphalt pavement, its stone has protruded out of the pavement, so its property is similar to that of the cement pavement. Generally, the cement pavement under coating agent special matching under coating agent is also used.