Wall finishing is not simply a matter of applying paint. A reliable result starts with proper substrate preparation, followed by surface leveling and the final decorative coating. Jointing gypsum is used for filling plasterboard joints and local defects, while gypsum plaster is intended for suitable interior plastering and leveling applications. Wall putty provides a finer surface before painting, and latex paint delivers the final appearance and surface protection.

These materials serve different purposes and should not be treated as interchangeable. When purchasing gypsum-based products, check the intended application, product classification, applicable standards, packaging condition and manufacturer's instructions. For gypsum plaster in China, GB/T 28627-2023 is a key reference. Storage conditions also matter: moisture exposure and improper storage can affect powder quality, so check the production date and stated shelf life before use.

Wall putty should be selected according to the substrate, room conditions and required performance. Under China's JG/T 298-2010 standard, interior putty is classified into general-purpose (Y), flexible (R) and water-resistant (N) types. General-purpose putty suits ordinary interior finishing, flexible putty is intended for applications requiring a degree of flexibility, and water-resistant putty is designed for areas with higher water-resistance requirements. However, water-resistant putty is not a waterproofing membrane and cannot replace a properly designed waterproofing system.

For interior latex paint, compare product documentation, applicable standards, washability and finish. GB/T 9756-2018 provides a reference for classifying synthetic resin emulsion interior wall coatings, with different washability requirements for different product grades. For health-related considerations, China's current mandatory standard for architectural coatings is GB 30981.1-2025, effective from June 1, 2026. Review relevant test reports rather than relying solely on claims such as "zero formaldehyde" or "non-toxic." In humid environments, consider verified mold-resistance performance, while also addressing the underlying causes of moisture, condensation or leakage.

The best choice is not necessarily the most expensive product. For gypsum plaster, select a grade suited to joint filling, local repairs or full-surface leveling. For putty, consider moisture exposure, substrate condition and application requirements. For latex paint, compare emissions-related compliance, washability, gloss level and verified mold resistance. Matte finishes can help reduce the visual prominence of minor surface imperfections, while eggshell finishes provide a subtle sheen. Always follow the manufacturer's instructions for application, drying and ventilation.

For most residential projects, a well-specified mid-range product may offer good value when its performance meets the actual requirements and installation is carried out correctly. Higher-priced products may be worthwhile when their additional features are supported by reliable test data and relevant to the space. Choose by application, verify by standards and performance, and compare price last. This approach helps achieve a more durable finish without paying unnecessarily for marketing claims.