1.1 The construction content of epoxy anti-static floor coating includes the construction, testing and quality inspection of surface layer, leveling layer, static conductive sealing layer, conductive grid, grounding terminal, etc.

1.2 Construction site environmental requirements: the temperature should be ≥10°C, the relative humidity should not be greater than 70%, and the environment should be well ventilated.

2.1 The technical indicators of epoxy anti-static floor coatings should comply with the standards.

2.2 Construction of epoxy anti-static floor coating:
Each batch of ingredients must be used up once. On-site batching buckets, rollers, brushes and other tools should be cleaned with mixed solvent before work is completed every day. The mixed solvent is composed of n-butanol and xylene, and its quality meets the requirements of the national standard.

2.3 During storage and use, construction materials and solvents must not come into contact with water, acid, or alkali, and are strictly prohibited from being surrounded by open flames or exposed to the sun outdoors.

2.4 Special tools and equipment for the construction of anti-static epoxy floor coatings include portable mixers, scrapers, defoaming pedals, defoaming rollers (plastic rollers), floor grinders, vacuum cleaners, measuring instruments, etc., and their specifications, performance, and technology The indicators should meet the requirements of construction technology.

3.1 The following preparations should be made before construction:

3.1.1 Be familiar with design and construction drawings and survey the construction site.

3.1.2 Develop a construction plan and draw anti-static grounding system diagrams (including ground grid layout diagrams, grounding terminal diagrams, etc.).

3.1.3 Check the variety, specifications and quantity of incoming materials and classify and stack them.

3.1.4 Verify whether the materials and site environment meet the construction process requirements.

3.2 The construction site should meet the following requirements:

3.2.1 It should be carried out after the interior decoration project is basically completed.

3.2.2 When the base floor is a cement surface layer, the surface of the surface layer should be hard, flat, clean, and dry. There should be no looseness, powdering, peeling, cracks, etc., no grease, and no hollowing.3.2.3 Use a 2m ruler to check the flatness of the ground. The allowable gap shall not be greater than 3mm.

3.2.4 If the ground is defective, it should be repaired with epoxy mortar a few days in advance. Oil, glue, wax or other contaminants on the base surface must be thoroughly removed.

3.2.5 When the base layer is terrazzo, ceramic tile, or wooden floor, the original plate surface layer must be repaired, and the gaps between the plates should be smoothed with putty. When the height between adjacent plates is greater than ±1.5 mm, putty should be used to fill and smooth it. The plates should not be loose or hollow.

3.2.6 When the base layer is a coated floor such as paint, resin, mortar, etc., the coating shall not be lifted or peeled. If any is found, first remove the coating from the detached area, then smooth it with sandpaper, and fill the depression with putty.

4.1 Treatment of construction base ground:
4.1.1 The floor should be thoroughly cleaned.
4.1.2 In the doorway in the construction area, 3 mm rubber strips should be used to set up barriers at the separation to prevent glue from overflowing.
4.1.3 Tapes should be used to protect skirting boards, door bottoms, equipment feet, etc. during construction. Wall skirts in passages and other parts should be protected with plastic film enclosures.
4.1.4 Laying the epoxy sealing bottom layer:
4.1.1 Mix the ingredients according to the proportions required in the product instructions and mix evenly.
4.1.2 Use a wool roller to coat the floor. Each kilogram should be applied to 4-5 square meters. The coating should be even and no leakage should be allowed. The materials should be prepared freshly and the ingredients must be used up within 60 minutes.
4.1.3 Use epoxy mortar to level the ground.
4.2 Install the ground terminal:
4.2.1 The location of the site grounding terminal should be shown according to the construction diagram.
4.2.2 Use galvanized expansion bolts to fix the ground terminal.

4.3 Laying conductive ground grid:
4.3.1 The conductive ground grid should be made of conductive copper foil.
4.3.2 The construction method that should be used to install conductive copper foil ground grid:
a Use conductive copper foil with a width of 10-20 mm and a thickness of 0.05-0.08 mm, and set it on the base floor according to a 4×4m grid (see Figure 4.4.3). For bays smaller than 4m x 4m, the copper foil should be laid out in a “cross” shape, with the intersection point located in the center of the room. The intersection between the copper foil and the ground terminal copper foil should be soldered firmly with tin.
b On the base floor, adhere the copper foil to the ground along the 4m×4m grid lines according to the ground grid layout.
4.5 Apply anti-static primer:
4.5.1 Mix ingredients according to product construction requirements and mix evenly with a mixer.
4.5.2 Transport the mixed materials to the designated location.
4.5.3 Use a scraper to scrape evenly.
4.6 Construction method of antistatic epoxy topcoat:
4.6.1 Ingredients: Ingredients according to the requirements of the product instructions and stir evenly.
4.6.2 Trowel coating is generally used for surface layer construction. Coat 1-1.3 kg per square meter. When multiple people operate at the same time, there should be no traces at the junction. It is advisable to maintain for 7 days after the scraping operation is completed.
4.7 On-site cleaning work after completion of surface layer construction:
4.7.1 Operators should wear soft shoes when cleaning, and irrelevant personnel are strictly prohibited from trampling on the ground.
4.7.2 Clean the protective strips on the skirting boards, the bottom edge of the door, and the feet of the equipment, and use thinner to wipe off the adhesion.
4.7.3 Clean the mixing site and material transport channels.

5.1 Performance testing should be conducted after the epoxy antistatic floor coating is fully cured (at least 7 days).
5.2 The anti-static ground electrical performance testing instrument should be within the calibration period.
5.3 The anti-static performance test is carried out in accordance with the requirements of the industry standard “Electronic Product Manufacturing Anti-static System Test Method SJ/T10694”, and the quality sampling assessment method is carried out in accordance with the requirements of the international “Batch-by-Batch Inspection Count Sampling Procedure and Sampling Table (Applicable to Continuous Batch Inspection)” GB2828 .
5.4 The electrical performance indicators of anti-static epoxy floor should comply with the following regulations:
a Surface static resistance value: 1×105-1×109Ω (distance between boards 900-1000mm)
b System resistance value: 1×105-1×109Ω
5.5 Appearance quality requirements of the ground: there should be no cracks on the surface, no obvious unevenness or blistering between the delamination phenomenon and the base layer, the overlapping joint surface should be straight, 1.5 meters away from the ground, and there should be no obvious color difference and bubble.
5.6 Use a 2 m ruler to check the flatness of the ground. The gap shall not be greater than 2 mm. Any parts that do not meet the requirements must be repaired in layers according to the construction process sequence. The repaired coating and the original coating should have good adhesion, consistent appearance, and no obvious color difference.