Precautions for epoxy zinc-rich primer on steel structure

Epoxy zinc-rich primer is the most commonly used primer, can be used for a variety of material primers, epoxy zinc-rich primer plays an important role in steel structure, epoxy zinc-rich primer in steel structure is used for anti-corrosion protection, paint film can also be welded.Zinc - rich epoxy primers for steel structures is one of the indispensable primers.

1. Check whether the flatness of the bottom material meets the requirements, and repair the uneven parts in time.

2. Spray epoxy zinc-rich primer (air pressure 5-8kg/cm2, no water spray) on the completely dry surface of steel structure.

3. It is required to spray evenly, no leakage of spray, the color should be uniform, no flower phenomenon, windy (above 6) and rainy days can not be applied.

4. Spraying epoxy zinc-rich primer for 2 times. After spraying, check the surface, and find scratches or bee eyes on the surface.

5. Grinding should use 360 mesh or 420 mesh water abrasive sandpaper, grinding should be careful, pay attention to not wear the film.

6. After grinding, dust removal should be carried out, and dust generated by grinding on the surface of steel structure should be cleaned with cloth, etc.If dust removal is not thorough, fluorocarbon paint after construction will not be able to achieve a smooth film.

7. After epoxy zinc-rich primer is sprayed, the color should be uniform, the luster should be uniform, the surface of the coating film should be smooth, and there should be no dust and other stains.

YMS epoxy zinc-rich primer has excellent anti-corrosion properties, good mechanical properties, strong adhesion, electrical conductivity and cathodic protection.A film of more than 75um can be used as a shop primer.The thick film can be welded at 15-25um without affecting the welding performance. The epoxy zinc-rich primer can also be used as an antirust primer.