Epoxy Zinc Rich Primer

Epoxy Zinc Rich Primer I. Product Introduction Epoxy zinc rich primer is a special coating primarily composed of epoxy resin, zinc powder, anti-rust pigments, fillers, additives, solvents, etc. This primer possesses many excellent properties such as fast natural drying, strong adhesion, strong anti-corrosion capability, and a hard coating. Additionally, it features cathodic protection, strong rust prevention performance, excellent flexibility, and weather resistance. It is mainly used for anti-corrosion coatings, and epoxy zinc rich primer is typically used as a primer for anti-corrosion paints. Product Features: High Zinc Content: Epoxy zinc rich primer has a high zinc powder content, which gives it excellent rust prevention and anti-corrosion properties. The zinc powder in the paint film provides cathodic protection, effectively preventing corrosion of the metal substrate. Fast Drying: This primer has a fast-drying characteristic, allowing it to quickly form a protective film after application, thus improving construction efficiency. Strong Adhesion: Epoxy zinc rich primer exhibits good adhesion to metal substrates, firmly adhering to the surface and resisting peeling. Excellent Water Resistance: This primer has good water resistance, maintaining stable performance in humid or underwater environments. Cathodic Protection: The zinc powder in the epoxy zinc rich primer is preferentially corroded during the corrosion process, thereby protecting the metal substrate from corrosion; this is a manifestation of its cathodic protection effect. Good Flexibility and Weather Resistance: This primer boasts excellent flexibility and weather resistance, maintaining stable performance under various climatic conditions. Overall, epoxy zinc rich primer features excellent rust prevention, anti-corrosion, fast drying, and strong adhesion, making it suitable for all applications requiring strong anti-corrosion protection, performing exceptionally well in harsh corrosive environments. It can comprehensively improve the anti-corrosion performance and service life of steel structure substrates. III. Scope of Application In terms of use, epoxy zinc rich primer is widely applied to steel structures, iron towers, oil pipelines, petrochemical equipment, exteriors of various storage tanks, heavy steel structures, port machinery, railway and highway transport vehicles, bridges, ships, metallurgical industries' steel structures, equipment surfaces, etc., serving as a base anti-corrosion primer. Simultaneously, it can also be used as a maintenance primer and an anti-corrosion primer for galvanized sheet surfaces. It also finds extensive application in heavy-duty anti-corrosion fields such as ships, bridges, sand castings, pipelines, and steel facilities. IV. Technical Specifications: Inspection Results Item Technical Index Inspection Result Actual Measurement Test Method (National Standard) Product Color Conforms to sample Compliant Gray Visual inspection Film Appearance (Visual) Flat, smooth, no impurities Compliant Flat, smooth CB1721-79 Gloss Matte Conforms 28° (60° angle) GB1743-79 Solid Content: % 70 Compliant 75 GB/T1725-2007 Zinc Content: % 50 Compliant 50 Fineness μm ≤30 Compliant 25 Hardness: h ≥2 Compliant 2 GB/T6739-2006 Drying Time Surface Dry (min) ≤20 Compliant 1 GB/T1728-1989 Hard Dry (h) ≤24 Compliant 24 GB/T1728-1989 Bend Resistance (mm) 2 Compliant 2 GB/T1731-1993 Impact Strength (cm) 50 Compliant 50 GB/T1732-93 Adhesion: (grade) 1 Compliant 1 GB1720-79 Salt Spray Resistance: h ≥500 hours Compliant No blistering, no rusting, no peeling. GB/T1771-2007 V. Basic Parameters: Item Index Induction Time Under conditions of 20°C, the induction time is 30 minutes. Pot Life The mixed paint needs to be used within 6 hours. Recommended Number of Coats One coat by airless spray, 1-2 coats by brush or roller. Compatible Previous Coat Can be directly applied to steel surfaces with rust removal quality reaching Sa2.5 grade. Compatible Topcoats Including epoxy topcoat, chlorinated rubber topcoat, micaceous iron oxide epoxy intermediate coat, fluorocarbon topcoat, acrylic topcoat, etc. Working Life The paint's working life is 8 hours; it is recommended to use the mixed paint on the same day. Coverage Reference The coverage of primer is approximately 5-6 square meters/kg; the coverage of topcoat is 6-7 square meters/kg. Ratio [9 kg (Paint): 1 kg (Hardener): 3 kg (Thinner)] by weight VI. Construction Process and Steps: Application Methods: Epoxy zinc rich primer can be applied by brushing, rolling, or spraying. The specific method chosen should depend on the actual situation and construction conditions. Operation Steps: Stirring: Stir the epoxy zinc rich primer thoroughly to ensure all components are fully mixed. Dilution: If necessary, an appropriate amount of thinner can be added for dilution to achieve the desired application viscosity. Application: Apply according to the selected method, ensuring a uniform coating without missed spots. Drying: Allow the coating to air dry or bake dry as per product instructions. Dilution and Mixing Ratio: When using epoxy zinc rich primer, attention should be paid to controlling the amount of thinner and hardener added. Generally, the amount of thinner added should be adjusted according to the construction environment and application method to ensure smooth and uniform application. The amount of hardener added should strictly follow the product instructions to guarantee the quality and performance of the coating. Construction Precautions and Safety Measures: Construction personnel should wear protective gear such as safety glasses, gloves, and masks. Smoking and open flames are strictly prohibited at the construction site to prevent fire or explosion. Avoid construction in humid or low-temperature environments to prevent affecting the curing and performance of the coating. Avoid prolonged interruptions during application to prevent affecting the continuity and quality of the coating. Clean application tools promptly after application to prevent residues from affecting future use. Maintenance and Care: After the coating dries, regular maintenance and care should be performed to extend its service life. Regularly check the coating condition; if damaged or aged, promptly repair or replace it. During maintenance, avoid scratching the coating with sharp objects and avoid contact with corrosive substances such as strong acids and alkalis. Quality Inspection Standards and Methods: After coating completion, quality inspection should be performed on the coating. Key inspection items include: coating appearance, drying time, adhesion, hardness, etc. Specific inspection methods and standards can refer to the product instructions or relevant industry specifications. If any non-conformities are found, corrections or rework should be performed promptly. VII. Storage and Safety Protection: The product should be stored in a cool, well-ventilated place, protected from direct sunlight, isolated from fire sources, and kept away from heat. Keep the construction process dry and clean; strictly avoid contact with water, acids, alcohols, alkalis, etc. After mixing the paint, the hardener container must be tightly sealed to prevent gelling. Operators should wear safety masks and gloves to avoid skin or eye contact. In case of accidental contact, wash with clean water.