Coloring Markers with Maximum Ink Utilization & Leak Protection
Porex offers two distinct nib technologies depending on the specific design needs of your coloring marker writing instrument:
- POREX® sintered particle nibs are 3D-molded porous plastic nibs with the ideal mix of porosity and capillarity to deliver ink to the writing surface. Safe for children’s applications, our sintered PE nibs write with a smooth, durable feel.
- POREX® polyester fiber nibs are a combination of polyester fiber and bonding resin, optimized for high ink flow and shaped to your coloring marker’s specifications.
Porex XPE® reservoirs are formed from a controlled density of fibers in an extruded seal, allowing you to contain and deliver the maximum amount of ink to your coloring markers. Capillary forces and materials are customized to your specific requirements and to ensure leak protection.
Watch how porous nibs and reservoirs work together to manage ink flow
Options for customizing nibs and reservoirs for coloring markers
Key Features & Benefits
- Customizable ink flow, capillarity, fiber types/densities, wrap materials, and sizes/dimensions
- Maximum ink utilization
- Highest degree of leak protection
- Won’t fray or mushroom out
- Sharp, clear lines
|Sintered Particle Nibs|
|Nib Materials||Polyethylene (PE)|
Size and dimensions
|Polyester Fiber Nibs (PET)|
|Nib Materials||Polyester fibers (PET)|
|Writing Applications||Permanent markers
|Customizable Options||Ink flow
Size and dimensions
|Exterior Materials||Extruded polypropylene
Film and nonwoven
White board markers
Permanent markers and more
|Customizable Options||Performance features
Sizes and dimensions
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Using Porous Plastics for Applying
The Science of Ink Flow Management Brochure
For over 50 years, POREX® has been the trusted choice for optimized nib and reservoir combinations that deliver exceptional performance and an enhanced writing experience.
How it Works Video Series: The Science of Ink Flow Management
How does a coloring or whiteboard marker apply ink consistently without leakage to a paper? See how it works in this video.
High-Efficiency Reservoirs Brochure
Learn more about POREX® high-efficiency reservoirs for writing instruments, designed to reduce ink waste while simultaneously enhancing writing performance.
Partnering with Crayola Video
Learn more about Porex’s longstanding partnership with Crayola for coloring marker reservoirs and nibs, including a story about the impact Crayola markers have had on our HR manager’s non-verbal son’s life.