Keson Ultra-Mark Paint 20 oz. / Box of 12.

Lay down bold, long-lasting marks that crews can see from a distance. Keson Ultra-Mark is a contractor-grade inverted marking paint engineered for high opacity, fast dry, and tough weather resistance on concrete, asphalt, gravel, soil, and turf. The clog-resistant valve and crisp fan spray make stencils, layout lines, and utility locates quick and clean—job after job. Stocked by the case so you’re always ready for big pours, long runs, and tight schedules.

Key Features

• High-opacity, fast-dry formula: Bright, readable marks that set up quickly to reduce smearing and downtime.
• Durable, weather-resistant paint: Holds up to traffic, sun, and moisture for reliable layout visibility.
• Inverted can w/ trigger compatibility: Works by hand or with standard marking wands/handles for ergonomic, walk-and-spray lines.
• Clean, controlled spray pattern: Fan/line output for sharp edges on pavement, dirt, or turf with minimal overspray.
• Clog-resistant valve: Consistent flow from first can to last—less fiddling, more marking.
• Multi-surface performance: Concrete, asphalt, gravel, compacted soil, and turf (ideal for construction, utilities, landscaping, and striping prep).
• Case pack efficiency: 12 × 20 oz cans keep crews supplied on large projects and reduce reorders.

Brand/Series: Keson Ultra-Mark

Product Type: Inverted marking paint (aerosol)

Pack Size: 12 cans per case

Can Size (Each): 20 oz can (approx. 17–18 oz net fill; varies by color)

Colors: Common APWA/utility colors (e.g., White, Yellow, Red, Blue, Green, Orange; availability varies)

Sheen/Opacity: High-opacity, matte finish for readable marks

Dry Time: Touch-dry ~5–10 minutes; handle ~20–30 minutes (temperature/humidity dependent)

Full Cure: ~24 hours (conditions dependent)

Spray Pattern: Inverted fan/line for crisp edges; low overspray formulation

Valve/Nozzle: Clog-resistant valve; wand/handheld trigger compatible

Application Methods: By hand (inverted) or with most standard marking wands/handles

Recommended Surfaces: Concrete, asphalt, compacted soil, gravel, turf/short grass

Weather Resistance: Designed for outdoor durability (sun, moisture, traffic)

Coverage (Per Can): ~250–400 ft of 2" line (surface/technique dependent)

Recoat Window: Anytime after tack-free; best adhesion within 1–2 hours

Operating Temp (Surface/Can): ~40°F to 110°F (4°C to 43°C); store warm in cold weather for best flow

Clean-Up (Uncured): Appropriate solvent (per SDS/color)

Case Weight: ~17–20 lb (varies by color)

Case Dimensions: ~11" × 8.5" × 10" (L×W×H; approximate)

Storage: Store upright, cool & dry; protect from heat/freezing; keep cap on

VOC/Compliance: Industrial/architectural aerosol category (check local regulations/SDS)

Safety Notes: Flammable aerosol. Use outdoors or with ventilation; avoid sparks/flames; PPE recommended; consult SDS for each color

Typical Applications: Construction layout, utility locates, line striping prep, landscaping marks, survey/layout notes

Manufacturer Part Number (MPN): Varies by color (case of 12, 20 oz)

Q: What surfaces does Ultra-Mark work on, and will the marks hold up outdoors?
A: It’s designed for concrete, asphalt, compacted soil, gravel, and turf/short grass. The paint is weather-resistant for outdoor visibility and stands up to sun and light moisture on active jobsites.

Q: How fast does it dry, and when can I recoat?
A: Typical touch-dry is 5–10 minutes, handle in ~20–30 minutes, and full cure in ~24 hours (conditions dependent). You can recoat anytime after tack-free; best adhesion is within 1–2 hours.

Q: Do the cans work with marking wands/handles, and how do I avoid clogs?
A: Yes—these inverted cans are wand/handle compatible. Shake well before use, keep the cap clean, and purge the nozzle briefly after spraying to help prevent clogs (the valve is clog-resistant).

Q: How much line will a can (and a case) cover?
A: Expect ~250–400 ft of 2" line per can depending on surface and technique. A 12-pack case yields roughly 3,000–4,800 ft of 2" line.