Keson Valve Paint Pens

Make permanent, high-contrast marks that stick where regular markers fail. Keson Valve Paint Pens lay down opaque, industrial-grade paint on metal, concrete, masonry, wood, plastic, rubber, and glass—even when the surface is rough, dusty, lightly oily, or cold. A valve-controlled tip delivers smooth, consistent flow for crisp lettering, bold layout lines, and durable identification that stands up to weather, UV, and jobsite abuse.

Key Features

• Valve-controlled flow: Press-to-prime valve meters paint for consistent, no-drip lines and clean fills.
• Industrial paint formula: Opaque, fast-drying, permanent marks that resist fading, water, and most jobsite chemicals.
• Writes on almost anything: Adheres to metal, concrete, masonry, wood, plastic, rubber, and glass—even on rough or lightly contaminated surfaces.
• High-visibility colors: Available in common jobsite shades (e.g., white, yellow, red, black) for coding and contrast on dark or light materials.
• Durable bullet tip: Tough, wear-resistant tip for crisp letters and layout lines; stands up to rough substrates.
• Jobsite-ready body: Pocket-cap with clip and steel ball agitator for quick mixing; designed for glove-friendly use.
• Outdoor tough: Weather- and UV-resistant marks for long-term legibility in the field.
• Versatile uses: Part labeling, weld/fab marks, concrete forms, utilities, inventory control, layout lines, and safety signage.

Brand/Model: Keson Valve Paint Pen (assorted colors)

Product Type: Industrial paint marker (valve-controlled)

Material (Ink/Paint): Opaque, fast-dry, xylene- or solvent-based industrial paint (color pigments + resin binders)

Material (Body/Tip): Aluminum or high-impact polymer barrel; wear-resistant bullet tip with valve core and steel ball agitator

Tip Size / Line Width: Bullet tip ~2–4 mm (≈1/16"–3/32") typical; fine control for lettering and layout lines

Capacity: ~10–15 ml paint per pen (varies by color)Dry Time: Touch-dry in ~5–10 minutes; handle in ~20–30 minutes; full cure in 24 hours (temperature/humidity dependent)

Permanence: Permanent, weather- and UV-resistant after cure; high abrasion resistance on prepared surfaces

Surface Compatibility: Metal (raw/primed), concrete, masonry, wood, plastic, rubber, glass; adheres on slightly dusty/lightly oily/cold surfaces (best on clean, dry substrate)

Operating Temperature: ~32°F to 120°F (0°C to 49°C) recommended; flow slows in cold—prime longer and store warm

Colors Available: Common jobsite colors (e.g., white, yellow, red, black; others vary by stock)

Weight (Per Pen): ~0.8–1.2 oz (22–34 g)

Dimensions (Per Pen): ~5.5–6.0 in length × ~0.6 in diameter (approx.)

Activation/Use: Shake vigorously (steel ball agitator), depress tip to prime, test stroke, then mark; recap to prevent dry-out

Clean-Up (Uncured): Wipe with appropriate solvent; after cure, mechanical removal may be required

Storage: Store capped, horizontal if possible; keep from freezing/heat; agitate before each use

Safety Notes: Use with ventilation; avoid inhalation/eye/skin contact; keep from flame/heat; follow SDS for your color/solvent system

Packaging: Singles and multi-packs (color-specific)

Typical Applications: Part ID, weld/fab marks, concrete forms, layout lines, utilities, inventory control, signage

Country of Origin: Varies by batch (check packaging)

Manufacturer Part Number (MPN): Varies by color (e.g., WHT, YEL, RED, BLK variants)

Q: What surfaces will these write on reliably?
A: Marks adhere to metal, concrete, masonry, wood, plastic, rubber, and glass; best results on clean, dry surfaces. Light dust or a hint of oil is usually okay, but prep improves durability.

Q: Are the marks permanent and how fast do they dry?
A: Permanent after curing. Touch-dry is typically 5–10 minutes, handle in ~20–30 minutes, and full cure around 24 hours (temperature/humidity dependent).

Q: The paint isn’t flowing—how do I prime the pen correctly?
A: Shake vigorously until the agitator ball moves freely, then press the tip on scrap material repeatedly to charge the valve. Re-shake and re-prime if flow slows during use; recap to prevent dry-out.

Q: What tip size and colors are available?
A: Bullet tip lines are about 2–4 mm wide, offering control for lettering and layout lines. Common colors include white, yellow, red, and black (availability varies).