1. Introduction
The Uni Posca PC-3M Black Paint Marker is a versatile, water-based pigment marker designed for a wide range of creative applications. Its opaque, vibrant ink is suitable for use on various surfaces, offering excellent coverage and a smooth finish. This manual provides essential information to help you get the most out of your Posca markers.

Image 1: A pack of three Uni Posca PC-3M paint markers in black, featuring a fine bullet tip suitable for detailed work.
2. Product Features
- Color: Black
- Quantity: 3 markers per pack
- Model: PC-3M (Fine Bullet Tip)
- Ink Type: Water-based pigment ink, opaque and vibrant.
- Versatility: Adheres to various surfaces including paper, wood, metal, glass, plastic, and fabric.
- Durability: Fade and water-resistant once dry.
3. Setup and Preparation
Before first use, or if the marker has not been used for a while, proper preparation ensures optimal ink flow and performance.
- Shake the Marker: With the cap securely on, shake the marker vigorously for approximately 10-20 seconds. This mixes the pigment evenly within the barrel.
- Prime the Tip: On a scrap piece of paper, gently press the tip down several times until the ink begins to flow. The tip will gradually become saturated with color. Avoid excessive pressing, which can lead to ink flooding.
- Test the Flow: Once the tip is saturated, test the marker on a scrap surface to ensure smooth and consistent ink flow before applying it to your main project.

Image 2: Detailed view of the PC-3M marker's bullet tip, designed for precise lines and controlled ink flow.
4. Operating Instructions
The Uni Posca PC-3M markers are designed for ease of use and versatility.
- Drawing and Coloring: Use the fine bullet tip for detailed lines, outlines, and small coloring areas. The opaque ink provides solid coverage.
- Layering: Posca ink can be layered. Allow the first layer to dry completely before applying subsequent layers to prevent smudging or mixing of colors. This allows for creating depth and highlights.
- Surface Compatibility: These markers work effectively on a wide array of materials. For porous surfaces like wood or fabric, the ink will be absorbed more, potentially requiring multiple coats for full opacity. On non-porous surfaces like glass or metal, the ink sits on top and can be scraped off if not sealed.
- Achieving Variable Flow: The plastic chisel-type tip allows for variable ink flow depending on the pressure applied. Gentle pressure yields finer lines, while more pressure can release more ink for broader strokes or filling.
5. Maintenance
- Recap After Use: Always replace the cap tightly after each use to prevent the ink from drying out and to maintain the tip's condition.
- Store Horizontally: Store markers horizontally to ensure even ink distribution to the tip.
- Clean Tips: If the tip becomes clogged or dirty, remove it and rinse with water. Reinsert the tip once clean and dry.
6. Troubleshooting
- Ink Not Flowing: If the ink is not flowing, shake the marker well and re-prime the tip by gently pressing it down on a scrap surface until ink appears.
- Uneven Color: Ensure the marker is thoroughly shaken before use to mix the pigment. If the color is still uneven, re-prime the tip.
- Smudging: Allow sufficient drying time between layers, especially on non-porous surfaces. Drying time can vary based on surface and humidity.
- Tip Damage: Avoid applying excessive pressure that could damage the tip. Replacement tips may be available from the manufacturer or retailers.
7. Specifications
| Attribute | Detail |
|---|---|
| Brand: | MITSUBISHI |
| Model Number: | PC-3M |
| Color: | Black |
| Number of Items: | 3 |
| Point Type: | Bullet |
| Line Size: | 0.9 - 1.3 mm (Fine) |
| Ink Color: | Black |
| Material Type: | Plastic (Body), Felt (Tip) |
| Item Weight: | 0.01 ounces (per marker, approximate) |
| Product Dimensions: | 5.71 x 0.79 x 1.77 inches (packaging dimensions) |
| Target Audience: | Adult, Kid |
| Date First Available: | August 9, 2014 |
8. Warranty and Support
Specific warranty information for this product may vary by region and retailer. For detailed warranty terms, product support, or to inquire about replacement parts, please visit the official MITSUBISHI PENCIL CO. LTD. website or contact their customer service directly.
Official Website: www.posca.com





