Custom Shop 932-12
Custom Shop Paint Mixing Cups Instruction Manual
Model: 932-12 | Brand: Custom Shop
Product Overview
The Custom Shop Paint Mixing Cups are a versatile and essential tool for anyone working with liquids requiring precise mixing. These 32-ounce (1 Quart) capacity cups are made from durable polypropylene plastic (PP), ensuring resistance to various paints, solvents, and resins. Each cup is clearly marked with graduated measurements and common mixing ratios, simplifying the preparation process for a wide range of applications.

Image: A pack of Custom Shop 32-ounce mixing cups, highlighting their clear design and measurement markings.
Key features include:
- Premium Epoxy Resin Mixing Paint Cups: 32 Oz Capacity, perfect for automotive paints, epoxy resin pours, and acrylic pouring paint stains.
- Accurate & Easy Mixing: Multiple Ratios Included (1:1, 2:1, 3:1, 4:1, 6:1, 8:1) for precise and hassle-free mixing.
- Durable & Reusable Polypropylene Plastic (PP): High-quality PP plastic ensures sturdiness, reusability, and resistance to solvents.
- Pack of 12: Convenient for professionals and DIYers, allowing for multiple projects or storage.
- Versatile Use: Ideal for automotive refinishing, resin art, wood coatings, and industrial applications.

Image: Several mixing cups filled with colorful liquids, demonstrating their 32-ounce capacity for various projects.

Image: A close-up of a mixing cup highlighting the accurate graduated measurements and popular mix ratios (1:1, 2:1, 3:1, 4:1, 6:1, 8:1).
Setup
Before first use, inspect each mixing cup for any damage or debris. While designed for durability, ensuring they are clean and free from contaminants will help maintain accuracy and prevent issues with your mixtures. No assembly is required.
Operating Instructions
Understanding Mixing Ratios
The Custom Shop mixing cups feature multiple ratio scales printed directly on the cup. These scales are designed to simplify the mixing process for various two-part or multi-component liquids. Each column represents a different mixing ratio (e.g., 1:1, 2:1, 3:1, 4:1, 6:1, 8:1). To use, select the desired ratio and fill the first component to a specific number on that ratio's scale, then fill the second component to the same number on the adjacent column for that ratio.
Video: An official product video demonstrating the features of the Custom Shop Paint Mixing Cups, including their capacity and the various mixing ratios available on the cups.
Mixing Process
- Select Ratio: Identify the specific mixing ratio required for your material (e.g., paint, resin, hardener).
- Add First Component: Pour the first liquid component into the cup, aligning its level with the desired number on the chosen ratio scale.
- Add Second Component: Carefully add the second liquid component until its level reaches the corresponding number on the adjacent column for the same ratio.
- Mix Thoroughly: Once both components are added, use a stir stick or appropriate tool to mix the contents thoroughly according to the material's instructions. Ensure all material from the sides and bottom of the cup is incorporated.

Image: A person carefully pouring a liquid into a Custom Shop mixing cup, demonstrating the initial step of the mixing process.

Image: A person stirring the contents within a Custom Shop mixing cup, illustrating the final step of combining components.
Maintenance and Care
These mixing cups are designed to be reusable, depending on the material mixed and the thoroughness of cleaning. For best results and to extend the life of the cups:
- Cleaning: After use, promptly clean the cups. For water-based materials, rinse with water. For solvent-based materials, use an appropriate solvent to clean. Ensure all residue is removed to maintain clear visibility of the measurement markings.
- Drying: Allow cups to air dry completely before stacking or storing to prevent residue buildup or sticking.
- Storage: Store in a clean, dry place away from direct sunlight or extreme temperatures to prevent material degradation.

Image: A close-up of a mixing cup with paint, emphasizing its durable and reusable polypropylene plastic construction.
Troubleshooting
While these cups are designed for accuracy, certain factors can affect measurement precision:
- Inaccurate Ratio Measurement: If critical precision is required, especially for materials sensitive to exact ratios (e.g., some epoxy resins), consider verifying measurements by weight using a digital scale in addition to the volume markings. This can help compensate for any minor variations in the printed scales or user error.
- Fragility/Damage: Although made from durable PP plastic, excessive force or improper handling can cause damage. Store cups carefully and avoid dropping them, especially when filled.
- Missing Lids: The product is sold as mixing cups and does not typically include lids. For storage of mixed materials, transfer to a separate container with a secure lid or use a suitable covering.
Product Specifications
| Specification | Detail |
|---|---|
| Manufacturer | Custom Shop |
| Brand | Custom Shop |
| Item Weight | 12 ounces |
| Package Dimensions | 12.83 x 5.63 x 5.31 inches |
| Item Model Number | 932-12 |
| Manufacturer Part Number | 932-12 |
| Special Features | Custom Mix Ratios |
| ASIN | B0023UPORY |
| Date First Available | March 31, 2009 |
Warranty and Support
For any questions regarding the Custom Shop Paint Mixing Cups, including product information, usage tips, or support, please contact the manufacturer, Custom Shop, or the seller, TCP Global Corp. Refer to your purchase documentation for specific contact details or visit the official Custom Shop website for further assistance.
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