Skip to main content
Home / Technical Pens / STA 8050 Fineliner Pen, Waterproof Outline Pen, Ultra-Fine Edge Drawing, Smudge-Proof Marker for Art and Illustration

Attributes

Brand -
Category Stationery, Educational Electronics & Office Supplies / Technical Pens
Origin -
Tip Size 0.05mm Ultra-Fine
Ink Type Waterproof Pigment Ink
Line Quality Smudge-Proof and Fade-Resistant
Barrel Material Durable Plastic with Metal Clip
Cap Design Ventilated Safety Cap
Color Black Ink / Grey Barrel
Ideal For Technical Drawing, Manga, and Illustration
Drying Time Quick-Dry Formula
Compatibility Works on Paper, Vellum, and Film
Package Contents 1 x STA 8050 Fineliner Pen

6 reviews

A

Anonymous

Mar 25, 2026

Rating: 5/5

Consistent flow

No skipping or blotching. The ink flows smoothly from the first stroke to the last drop. A reliable tool for professional work.

A

Anonymous

Mar 23, 2026

Rating: 5/5

Perfect for intricate details

The 0.05mm tip is incredibly precise. I use these for my architectural sketches and the lines are consistently clean without any bleeding.

A

Anonymous

Mar 20, 2026

Rating: 4/5

Solid everyday pen

Good for journaling and note-taking if you like very fine print. Dries instantly which is great for left-handed writers like me.

A

Anonymous

Mar 15, 2026

Rating: 4/5

Great value for artists

Excellent pen for the price. The only reason I didn't give 5 stars is that the cap can be a bit tight to remove sometimes, but the line quality is superb.

A

Anonymous

Mar 14, 2026

Rating: 5/5

My go-to for manga inking

I have tried many fineliners, but the STA 8050 offers the best control for hatching and cross-hatching techniques. Highly recommended.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Truly waterproof

I tested this with watercolors and the ink did not smudge at all. It holds up perfectly even when wet media is applied over it.

5 FAQ

Q: Does the 0.05mm tip bend easily?

A: The tip is made of durable stainless steel. While it is sturdy, we recommend avoiding excessive pressure or dropping the pen to prevent damage to the ultra-fine point.

Q: Can I refill this pen once the ink runs out?

A: No, the STA 8050 is a disposable fineliner and is not designed to be refilled. We recommend recycling the barrel according to local guidelines.

Q: Is this pen suitable for use with alcohol markers?

A: Yes, the waterproof pigment ink is designed to resist bleeding when alcohol markers are layered over it, provided you let the ink dry completely first.

Q: Is the ink archival quality?

A: Yes, the pigment ink is acid-free, fade-resistant, and archival quality, making it suitable for long-term preservation of your artwork.

Q: What is the shelf life of the ink if I don't use it often?

A: If stored horizontally with the cap tightly sealed, the pen can last for several years without drying out. Always store it horizontally to maintain ink flow.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Piano Sheet Music Collection - Pop and Classical Scores, Tutorial Books, and Staff Notation for Piano and Electronic Keyboard (10,000 Songs)

Piano Sheet Music Collection - Pop and Classical Scores, Tutorial Books, and Staff Notation for Piano and Electronic Keyboard (10,000 Songs)

$10.00

Natural Clear Quartz Faceted Tumbled Beads for DIY Jewelry Making, High-Quality Carved Beads for Bracelets and Necklaces

Natural Clear Quartz Faceted Tumbled Beads for DIY Jewelry Making, High-Quality Carved Beads for Bracelets and Necklaces

$1.80

Music Play Lao Wei Khalil Fong Guitar Chord Sheet - Digital Version

Music Play Lao Wei Khalil Fong Guitar Chord Sheet - Digital Version

$9.00

Kimberly-Clark 41412 WYPALL X70 All-Purpose Wipes - Oil/Absorbent/Solvent Resistant Shop Towels

Kimberly-Clark 41412 WYPALL X70 All-Purpose Wipes - Oil/Absorbent/Solvent Resistant Shop Towels

$110.00

EMG 60/85/81/81TW/89/89R Active Dual-Coil Guitar Pickups - Cuttable and Ready to Install

EMG 60/85/81/81TW/89/89R Active Dual-Coil Guitar Pickups - Cuttable and Ready to Install

$910.00

Retainer Storage Case with Mirror for Cleaning and Soaking Portable Orthodontic Aligner Box

Retainer Storage Case with Mirror for Cleaning and Soaking Portable Orthodontic Aligner Box

$24.93

Suitable for 195/55R15 & 195/60R15 Used Tires Year-Round Supply Low Price Guaranteed Quality

Suitable for 195/55R15 & 195/60R15 Used Tires Year-Round Supply Low Price Guaranteed Quality

$80.00

Sink Drain Rack Corner Hanging Basket - Kitchen Sponge and Cloth Organizer, Multi-Function Home Storage Solution

Sink Drain Rack Corner Hanging Basket - Kitchen Sponge and Cloth Organizer, Multi-Function Home Storage Solution

$13.73

Magnetic Refrigerator Side Storage Rack - No-Drill Wall Organizer for Spices and Utensils

Magnetic Refrigerator Side Storage Rack - No-Drill Wall Organizer for Spices and Utensils

$9.10

Multi-Function Car Tire Stone Removal Hook Tool for Picking and Digging Out Debris

Multi-Function Car Tire Stone Removal Hook Tool for Picking and Digging Out Debris

$7.35

Suction Cup Sink Strainer - Disposable Kitchen Drain Filter for Food Scraps and Waste

Suction Cup Sink Strainer - Disposable Kitchen Drain Filter for Food Scraps and Waste

$14.30

Kimberly-Clark Wiper Paper, Industrial Cleaning Wipes for Oil and Grease, Factory & Laboratory Use

Kimberly-Clark Wiper Paper, Industrial Cleaning Wipes for Oil and Grease, Factory & Laboratory Use

$963.52

Loose Gold Rutilated Quartz Beads, Donghai Agate, Chalcedony, Jade, Cat's Eye, Titanium Crystal, Aquamarine, White and Yellow Crystal Single Beads for Bracelets

Loose Gold Rutilated Quartz Beads, Donghai Agate, Chalcedony, Jade, Cat's Eye, Titanium Crystal, Aquamarine, White and Yellow Crystal Single Beads for Bracelets

$8.42

Faucet Drain Mat, Non-Slip Countertop Pad for Kitchen and Bathroom, Splash-Proof Sink Organizer, Thickened Mold-Resistant Silicone Mat

Faucet Drain Mat, Non-Slip Countertop Pad for Kitchen and Bathroom, Splash-Proof Sink Organizer, Thickened Mold-Resistant Silicone Mat

$3.78

New Pirelli Tire 255/40R20 101W AO PZERO PZ4 with Silent Cotton Original Fit for Audi A6L

New Pirelli Tire 255/40R20 101W AO PZERO PZ4 with Silent Cotton Original Fit for Audi A6L

$1,358.00

Oriental Pearl Dual Porcelain Jar Gift Set: Green Tea, Black Tea, Jin Jun Mei, Pu'erh Loose Leaf Tea in Porcelain Jars

Oriental Pearl Dual Porcelain Jar Gift Set: Green Tea, Black Tea, Jin Jun Mei, Pu'erh Loose Leaf Tea in Porcelain Jars

$149.00

Purified Water Bucket Stand Inverted Water Dispenser Pump Simple Mineral Water Drinking Machine Press Pump

Purified Water Bucket Stand Inverted Water Dispenser Pump Simple Mineral Water Drinking Machine Press Pump

$10.80

New Children's Gouache Paint Brushes DIY Hand-Painted Graffiti Art Class Watercolor Acrylic Paint Brushes Bristle Round Tip Brush

New Children's Gouache Paint Brushes DIY Hand-Painted Graffiti Art Class Watercolor Acrylic Paint Brushes Bristle Round Tip Brush

$6.41

Natural Clear Quartz Fully Clean Untreated Faceted Round Rice Beads - For Women's Bracelets, Spacer Beads, and DIY Crafts

Natural Clear Quartz Fully Clean Untreated Faceted Round Rice Beads - For Women's Bracelets, Spacer Beads, and DIY Crafts

$6.63

Sponge Brushes for Kids' Crafts and Creative Painting - Student Art Stamping Tools, DIY Sponge Paintbrushes

Sponge Brushes for Kids' Crafts and Creative Painting - Student Art Stamping Tools, DIY Sponge Paintbrushes

$13.86

Jiuchenggong Liquan Ming Tang Dynasty Ouyang Xun Yao Mengqi Copybook, Regular Script Brush Calligraphy Workbook, 3 Volumes, 188 Pages

Jiuchenggong Liquan Ming Tang Dynasty Ouyang Xun Yao Mengqi Copybook, Regular Script Brush Calligraphy Workbook, 3 Volumes, 188 Pages

$17.90

Shaped Watercolor Paper Ticket Stubs - Blank Postage Stamp Bookmarks with Serrated Edges, Thickened 300g Premium Cotton Pulp, Fine Texture for Art Hand Painting, Easy Blending, High Absorbency, Wrinkle-Resistant - Perfect for Postcards and Creative Cards

Shaped Watercolor Paper Ticket Stubs - Blank Postage Stamp Bookmarks with Serrated Edges, Thickened 300g Premium Cotton Pulp, Fine Texture for Art Hand Painting, Easy Blending, High Absorbency, Wrinkle-Resistant - Perfect for Postcards and Creative Cards

$9.85

Naitong Automatic Retractable Air Hose Reel with PU Braided Hose for Pneumatic Tools and Car Detailing

Naitong Automatic Retractable Air Hose Reel with PU Braided Hose for Pneumatic Tools and Car Detailing

$119.00

Premium Wall-Mounted Aromatherapy Empty Bottle – 100ML Plastic Square Diffuser Bottle with Wall-Mount Adhesive Sticker

Premium Wall-Mounted Aromatherapy Empty Bottle – 100ML Plastic Square Diffuser Bottle with Wall-Mount Adhesive Sticker

$2.98

Leyingfang Floating Pen for Kids' Water Drawing, Colorful Water-Soluble Suspended Markers, Erasable Watercolor Pens

Leyingfang Floating Pen for Kids' Water Drawing, Colorful Water-Soluble Suspended Markers, Erasable Watercolor Pens

$13.80

Loose Rose Quartz Beads, Donghai Agate, Chalcedony, Jadeite, and Madagascar Pink Crystal for DIY Jewelry Making

Loose Rose Quartz Beads, Donghai Agate, Chalcedony, Jadeite, and Madagascar Pink Crystal for DIY Jewelry Making

$6.72

Expandable Stainless Steel Sink Rack, Multi-Function Kitchen Drain Board for Fruits, Vegetables, and Utensils

Expandable Stainless Steel Sink Rack, Multi-Function Kitchen Drain Board for Fruits, Vegetables, and Utensils

$14.90

Transparent Retainer Case Aligner Storage Box Portable Carry-On Squeeze Bag Orthodontic Appliance Rubber Band Cleaning Box

Transparent Retainer Case Aligner Storage Box Portable Carry-On Squeeze Bag Orthodontic Appliance Rubber Band Cleaning Box

$18.50

Transparent Data Cable Organizer Bag for Travel - Portable Multi-Use Visible Storage for Digital Chargers and Cable Management

Transparent Data Cable Organizer Bag for Travel - Portable Multi-Use Visible Storage for Digital Chargers and Cable Management

$7.36

Finished Seal Calligraphy Finished Stone Stamp Sellos Chines

Finished Seal Calligraphy Finished Stone Stamp Sellos Chines

$108.58