Interior Wall Paint for Container Houses

For interior wall paint of container houses, it is recommended to choose specialized anti-corrosion coatings or water-based industrial paints, taking into account corrosion resistance, construction techniques, and applicable scenarios. The following provides an overview from three aspects: coating types, construction essentials, and market supply:

1. Recommended Coating Types

• Specialized Anti-Corrosion Coatings for Containers: Represented by Nantong Xingchen's Fenghuang Brand 0191 bisphenol A solid epoxy resin coating, its core advantages include strong corrosion resistance (capable of withstanding salt spray and chemical erosion) and high mechanical strength, suitable for scenarios where containers are exposed to complex environments for extended periods. This type of coating requires spray application to ensure uniform coverage of the steel surface.
• Water-Based Industrial Paint: Such as products from the Luyun brand, diluted with water, stands out for its environmental friendliness (low VOC emissions) while offering anti-corrosion and rust-proof functions, ideal for residential scenarios with high indoor air quality requirements. During application, attention should be paid to environmental humidity to prevent coating blistering.
• Epoxy Interior Paint: Commonly applied manually via spraying in container construction, requiring the use of air-fed masks to ensure worker safety, especially suitable for semi-enclosed container environments. Its advantages include strong adhesion and wear resistance, but with a longer drying time (over 12 hours).
• Shidanlong Specialized Container Paint: Offers gray primer/intermediate coat, supports multiple application methods including spraying, brushing, and rolling, with strong weather resistance (resistant to UV aging) and a theoretical coverage rate of 8-12㎡/kg, suitable for large-scale construction. Its drying time is 12 hours, requiring strict control of ambient temperature (recommended 20-30℃).

2. Construction Technique Essentials

• Substrate Preparation: Must meet Grade A standards specified in ISO8501, i.e., complete removal of oil, dust, and corrosive impurities, with weld seams and other areas requiring secondary sandblasting to Sa2.5 grade to ensure firm adhesion between the coating and substrate.
• Layered Application: Typically involves three steps: zinc-rich primer pre-coating (for rust prevention), epoxy intermediate coat (to enhance adhesion), and epoxy interior paint (for protection). Each layer requires control of viscosity (e.g., epoxy paint viscosity adjusted to 40-60 seconds), pump pressure (0.4-0.6MPa), and drying conditions (oven temperature 30-50℃).
• Safety Measures: When spraying epoxy interior paint, workers must wear air-fed masks to prevent inhalation of paint mist and solvents; the construction site must be well-ventilated and free from open flames.

3. Market Supply Information

• Shidanlong Coatings: Priced between 9.00 and 20.00 yuan per kilogram, supports nationwide delivery, suitable for bulk purchases.
• Langfang Xiangteng Chemical: Offers container refurbishment paint, priced at approximately 11.00 yuan per bucket, supports online ordering, suitable for small-scale maintenance or refurbishment projects.

Summary: The selection of interior wall paint for container houses should balance performance and cost. It is recommended to prioritize specialized anti-corrosion coatings or water-based industrial paints, strictly adhering to substrate preparation, layered spraying, and safety protection norms during construction. Reference can be made to brands such as Fenghuang and Shidanlong.