Uni PX-20 Fine Paint Marker
Uni PX-20 Fine Paint Marker
The Uni PX-20 Fine Paint Marker is the slimmer, finer sibling of the Uni PX-30, built for controlled line work and detail on a wide range of surfaces. It features a round 4mm nib and a pump-action valve that delivers consistent, opaque paint flow with minimal waste. The PX-20 uses an oil-based paint formula that bonds permanently to glass, metal, plastic, ceramics, stone, and wood. A go-to choice for artists, crafters, and writers who need precision rather than coverage. Available at Alcosta Shop in multiple colors.
Marker Details
- 4mm round nib: fine, controlled line width ideal for detail work
- Pump-action valve for consistent, controlled paint flow
- Oil-based opaque paint: permanent on glass, metal, plastic, ceramic, stone, and wood
- Available in Black, Silver, White, Gold, and Red
- Shake and pump before use to prime the nib
Key Features
- Uni PX-20: the fine-tip variant in the Uni Posca-adjacent PX lineup
- 4mm round nib: precise coverage for lettering, outlines, and detail fills
- Oil-based formula: superior adhesion on hard surfaces vs. water-based alternatives
- Works on non-porous surfaces including glass, metal, and plastic
- Pump-action design prevents flooding and waste
- 100% authentic Uni product
Specifications
| Brand | Uni (Mitsubishi Pencil) |
|---|---|
| Model | PX-20 |
| Nib Width | 4mm round |
| Ink Type | Oil-based opaque paint |
| Colors Available | Black, Silver, White, Gold, Red |
| Surfaces | Glass, metal, plastic, ceramic, stone, wood |
| Product Type | Paint Marker |
| Condition | Brand new |
Frequently Asked Questions
What is the difference between the Uni PX-20 and PX-30?
The PX-20 has a finer 4mm round nib compared to the PX-30's broader chisel nib. The PX-20 is better suited for detail work and lettering; the PX-30 is better for fills and coverage.
Is this oil-based or water-based?
Oil-based. This gives the PX-20 stronger adhesion on hard surfaces like glass and metal compared to water-based alternatives.
Does it work on glass?
Yes. The oil-based formula bonds permanently to glass and most non-porous surfaces.
How do I prime the marker?
Shake well, then press the nib down on a test surface to pump paint into the tip before your first use.
Is this product 100% authentic?
Yes. All art supplies at Alcosta Shop are 100% authentic and sourced from verified distributors.
How long does shipping take?
Orders typically ship within 1 to 2 business days. Domestic delivery is 3 to 7 business days depending on your location.
All Products at Alcosta Shop are 100% authentic and sold brand new. We curate, connect, and deliver with purpose.
- Orders ship within 1–3 business days.
- Economy: 5–8 business days → $9.99 (Free over $150).
- Express: 1–2 business days → $19.90.
- Bulky items: Economy $18.99 / Express $25.00.
- Tracking info will be emailed once shipped.
📍 Free Store Pickup (Walnut Creek, CA).
- Orders can be cancelled before shipping for a full refund.
- Once shipped, all sales are final (no cash or card refunds).
- Defective, damaged, or incorrect items may be eligible for return approval.
- Approved returns are refunded as store credit only (no cash/card refunds).
- Return requests must be made within 7 days of delivery.
- Items must be unused, in original condition, and shipped back within 15 days of approval.
- Non-returnable items: clearance, final sale, custom items, gift cards.
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