Based on the provided reference, the method described focuses on the composition of a specific putty paste formulation, listing the required raw materials and their proportions by weight. The reference details what ingredients are needed to create this putty paste, rather than providing a step-by-step guide on how to mix or process them.
Making this type of putty paste involves combining several key components in specific weight ranges. These components typically include fillers, binders, and various additives to achieve the desired consistency, performance, and stability of the paste.
Understanding the Composition
The quality and properties of putty paste are heavily dependent on the precise blend of its constituent raw materials. The reference outlines a formulation using a specific set of ingredients:
Key Ingredients and Proportions
According to the reference, the putty paste is prepared from the following raw materials by weight:
| Raw Material | Proportion (parts by weight) | Typical Role (General) |
|---|---|---|
| Heavy Calcium Carbonate | 40-50 | Main Filler |
| Talcum Powder | 20-28 | Filler / Rheology Aid |
| Sodium Bentonite | 3.2-5.5 | Thickener / Stabilizer |
| Pure Acrylic Emulsion | 8.5-9.8 | Binder |
| Defoaming Agent | 0.2-0.4 | Air Release |
| Dispersing Agent | 0.5-0.6 | Pigment/Filler Wetting |
| ... | 0.26-0.4 | Additive (details not specified in reference) |
Note: The reference cuts off before listing the final ingredient, providing only its proportion range.
Role of Ingredients (Based on General Formulation Knowledge)
- Fillers (Heavy Calcium Carbonate, Talcum Powder): These make up the bulk of the paste, providing body, reducing cost, and influencing properties like sandability and consistency.
- Binder (Pure Acrylic Emulsion): This is a crucial component that holds the fillers and additives together, forming a cohesive film upon drying. Acrylic emulsions are common binders in water-based putties and paints.
- Thickener/Stabilizer (Sodium Bentonite): Bentonite is a clay that swells in water, helping to thicken the paste, prevent settling of fillers, and improve application properties (rheology).
- Additives (Defoaming Agent, Dispersing Agent): These are used in small quantities to control specific issues during manufacturing or application. A defoaming agent prevents air bubbles from getting trapped in the paste, while a dispersing agent helps distribute solid particles (like calcium carbonate and talc) evenly within the liquid base. The final, unspecified additive likely serves another functional purpose, such as preservation, pH adjustment, or enhanced flow.
While the reference provides the essential building blocks and their required ratios, the actual process of combining these ingredients (e.g., the order of addition, mixing speed, mixing time, required equipment, and temperature conditions) is not described. Typically, putty paste manufacturing involves careful mixing steps, often starting with dispersing the dry powders in the liquid components (water, emulsion, additives) under specific conditions to ensure a smooth, homogeneous paste free of lumps.
To make this putty paste, one would need to follow a specific manufacturing procedure designed to correctly incorporate each of these ingredients in the specified proportions, usually in industrial mixing equipment.
