Gundam Marker Slushing Sumi-ire Pen (Black) GM301P

Overview

Gundam Marker Slushing Sumi-ire Pen (Black) GM301P is a pour type panel lining marker from Mr.Hobby / GSI Creos. It is designed for adding black panel lines to Gunpla and plastic model kits by allowing the ink to flow into recessed details using capillary action.

Compared with extra fine-tip panel lining markers, this pour type marker is useful when you want the ink to run naturally along molded panel lines. It is especially helpful for larger recessed details, mechanical grooves, and areas where a normal fine-tip marker may feel slower to apply.

Key Features

• Mr.Hobby / GSI Creos Gundam Marker
• GM301P Black pour type panel lining marker
• Flow-in style ink application for recessed panel lines
• Uses capillary action to help ink run into molded details
• Suitable for Gunpla and plastic model kit panel lining
• Useful for straight builds and basic detailing work
• Black color gives strong contrast and sharp mechanical definition
• Excess ink on unpainted plastic can be cleaned with a suitable eraser or GM300 Gundam Marker Eraser Pen
• Good companion item for builders who want faster panel lining than standard fine-tip markers

Product Details

• Brand: Mr.Hobby / GSI Creos
• Product Name: Gundam Marker Slushing Sumi-ire Pen (Black)
• Product Code: GM301P
• Marker Type: Pour type / flow-in panel lining marker
• Color: Black
• Use: Panel lining, recessed line detailing, and model kit finishing
• Suitable For: Gunpla, plastic model kits, and molded plastic parts
• Recommended Cleanup Tool: GM300 Gundam Marker Eraser Pen
• Recommended User Level: Beginner to advanced hobby users

Recommended For

• Gunpla builders who want faster panel lining on recessed details
• Builders working on molded plastic parts with clear panel lines
• Hobbyists who prefer flow-in panel lining over drawing every line manually
• Model kit builders who want stronger black panel line contrast
• Beginners who want a simple tool to make straight builds look more detailed

Things to Note

• This marker is mainly intended for use directly on unpainted molded plastic model parts.
• Be careful when using it over painted surfaces, as the ink may affect or dissolve the base paint.
• Avoid using it on plated parts, as it may damage the plated surface.
• If a coating agent is applied after use, the ink may bleed depending on the surface and product used.
• Test on a hidden area or spare part first if you are unsure about compatibility.
• Excess ink can be cleaned with a suitable eraser or GM300 Gundam Marker Eraser Pen.
• Close the cap tightly after use to prevent the marker tip from drying.
• Use in a well-ventilated area and store safely after use.

DeToyz Note

GM301P is useful when you want panel lining to be faster and more natural than drawing every line with a fine-tip marker. Once the ink touches a recessed panel line, it can flow along the groove and fill the detail more easily.

For beginners, this is a good tool to try after using GM01 or GM02. Just remember that pour type markers are best used on unpainted plastic. If you are working on painted parts, plated parts, or top-coated surfaces, test carefully first before applying it to the whole kit.

Domestic Shipping
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- Flat rate RM15 to Sabah & Sarawak for the first 1kg.

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Quick weight guide (rough estimate)

• HG / RG (single kit): approx. 1.5–2.5kg
• MG (single kit): approx. 3.0–5.5kg
• Tools: add weight quickly

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