1. Newly-completed industrial cement floor can only be constructed after certain maintenance, which takes about 28 days.

2. Remove cement laitance, old paint and adhered garbage and sundries on the surface.

3, thoroughly remove the oil on the surface, with oil king cleaning agent.

4. Clear the accumulated water in the production workshop and thoroughly dry the wet place.

5, surface cleaning needs to use dust-free sweeper and large vacuum cleaner to complete.

6. The allowable clearance on the plane is 2-2.5mm, and the moisture content is below 6%.

7, the floor surface roughening, need to be done with a dust-free grinder, and thoroughly cleaned with a vacuum cleaner.

8. Fill the holes and obvious depressions on the floor surface with putty for scraping, and polish and remove dust after work.

9. The cement floor of the clean workshop should be dust-free, water-free and oil-free.

Step 2, coat epoxy sealing primer.

1, when dealing with clean and flat cement floor, use spraying or roller coating epoxy sealing primer.

2. Features of epoxy back cover: strong permeability, excellent adhesion, corrosion resistance, and good adhesion with middle coat or top coat.

3. Brushing requirements: A certain amount of thinner should be added when brushing the primer, so that the diluted primer can penetrate into the base and enhance the adhesion between the coating and the base. The coating must be continuous, and the coating amount shall be subject to the surface just saturated.

4. Part of the missing coating can be repaired by brush, and the redundant primer on the surface should be polished before the next working procedure.

5. Mix the two components in proportion, fully stir and age for 20 minutes before use.

6. The service life of ready mixed paint is 8 hours, and it will gel easily if it takes too long.

7, using ordinary curing agent construction temperature is 5 ~ 35℃, below 5℃ need to use low temperature curing agent, otherwise the construction can't be carried out.

8. The dry film thickness of epoxy sealing primer is 10- 15μm, and the coverage rate is 0. 14kg/m2.

3. Scrape the solvent-free epoxy intermediate paint.

When the thickness of paint film is required, it is necessary to scrape solvent-free epoxy intermediate paint to meet the requirements, which can increase the flatness of the ground and enhance the mechanical strength of the whole floor.

1. Scraping construction method is adopted. During construction, first stir the component A, then pour the component B into the component A, and fully stir for more than 3 minutes until the coating is uniform. The service life after mixing is 30 minutes (25℃).

2. The water content of the coating is more than 8%, the surface temperature of the coating site is lower than 5℃, higher than 35℃, and the relative humidity is higher than 80%, so the construction should be avoided.

3, the construction of a paint, after hard work, polishing and cleaning, and then scrape the second paint.

4. Before construction, the coating temperature should be kept at about 20℃.

Four. Americium is coated with solvent-free epoxy self-leveling topcoat.

1. After applying primer and solvent-free epoxy resin.

2. Apply a solvent-free epoxy self-leveling topcoat.

3. During construction, firstly, the component A is preliminarily mixed, then the component B is poured into the component A, and fully stirred for more than 3 minutes until the coating is uniform. The service life after mixing is 25 minutes (25℃). Use as much as you want. The whole paint surface is finished at one time.

4. If the moisture content of the coating is greater than 8%, the on-site surface temperature of the coating is lower than 5℃, or higher than 35℃, and the relative humidity is greater than 80%, construction should be avoided.

5. After the construction, paint the results, prevent dust and close the site.

6, 24 hours after the completion of the construction can be used (25℃) (can only walk on it)

7. The curing time of paint film is 7 days (25℃) (it can be used normally). It is forbidden to wash the paint film with mop dipped in water or other chemicals within 7 days.

8. Before construction, the coating temperature should be kept at about 20℃.

Five, the construction matters needing attention

1, the environmental temperature of the construction site should be 5 ~ 35℃, the low-temperature curing agent should be above-10℃, and the relative humidity should be more than 80%.

2, the builder should make the construction site, time, temperature, relative humidity, floor treatment, materials and other actual records for future reference.

3, coating construction, should immediately clean up the relevant equipment and tools.

Six, safety technical requirements

1, warning belts should be pulled around the construction site and warning signs should be hung.

2, 10 meters around the construction site, it is strictly prohibited to open fire operation, smoking is strictly prohibited.

3, paint and thinner should be placed in a well-ventilated warehouse.

4, pay attention to personal protection at work.

5, the use of electric tools must have someone who's in charge, and cut off the power supply rear can leave the construction.

VII. Use and Maintenance

1. After the coating is completed, it shall not be used during the curing period, and ventilation and fire prevention measures shall be strengthened.

2, the use of the floor, production personnel are not allowed to wear leather shoes with nails to walk on it.

3. All working instruments must be placed with a fixed frame. Sharp metal parts and other objects are strictly prohibited from hitting the ground, causing damage to the painted floor.

4. When important objects such as equipment are installed in the workshop and need hoisting machinery, the supporting points touching the ground should be padded with soft materials such as thick rubber. It is forbidden to pick up or drag the equipment on the ground with metal such as iron pipes.

5. When conducting high-temperature operations such as electric welding in the workshop, use asbestos and other refractory materials to pave the place where electric welding sparks splash to prevent paint from burning out.

6. Once the floor is damaged, it should be repaired with paint in time, so as to prevent oil from infiltrating into the cement through the damaged part, causing a large area of paint to fall off.

7. Do not use intensified solvents (xylene, cinnabar water, etc.) when cleaning a large area in the workshop. ). generally use detergent, soap, water, etc. , and use the cleaning machine.