Putty powder is a powdered surface filler material used for pre-treatment of the base surface prior to paint application, ensuring a smooth surface for subsequent coating work. It can be categorized into oil-based putty and water-based putty, suitable for oil-based paint and latex paint projects, respectively. Putty powder is further divided into ready-mixed putty and on-site mixed putty. It replaces the traditional “talcum powder + sodium cellulose + 901 adhesive” process, requiring only the addition of water for mixing.

The primary function of putty powder is to repair and level walls before painting to ensure the quality of the coating. Its main advantages include:

Stable quality: Putty powder is produced through scientific formulation and mechanized production, complying with the national standard JG/T 3049—1998 “Putty for Indoor Use in Buildings,” eliminating the issues of errors and inconsistent quality associated with traditional on-site mixing.

Environmentally friendly and odorless: Traditional methods require the addition of 901 adhesive, which contains harmful substances (especially formaldehyde) and often emits a pungent odor after application. In contrast, putty powder uses natural plant-based adhesives, meets the environmental standards of GB18582—2001 National Compulsory Standard, and has harmful substance levels far below national limits, leaving no odor after application.

Convenient application: Traditional sodium cellulose requires prolonged soaking before use, which can cause on-site pollution in summer and is difficult to dissolve in winter, affecting adhesion performance; putty powder, however, dissolves easily in water and only requires mixing with water before application, saving time and effort.

Based on functionality, putty powder can be divided into standard putty powder and water-resistant putty powder; based on application, it can be further categorized into interior wall putty powder and exterior wall putty powder, catering to different construction requirements.