Overview of the Sirchie SIRCHMARK Evidence Marking Paint | SEP100N
When investigators arrive at a crime scene or traffic accident, time and accuracy are everything. Bullet casings, tire marks, blood drops, and other fragile evidence must be located and documented quickly before conditions change or contamination occurs. The Sirchie SIRCHMARK Evidence Marking Paint (SEP100N) gives law enforcement and forensic investigators a fast, reliable way to mark evidence with high-visibility fluorescent orange spray that stands out on virtually any outdoor surface.
The inverted-can design lets you spray at ground level without awkward bending or repositioning, making it quick to deploy across a large scene. Each 17 oz. can covers up to 300 linear feet, so a single unit carries you through complex multi-point scenes without a mid-scene trip back to the vehicle.
The formula is water-based and temporary, adhering to pavement, gravel, grass, and soil while naturally wearing off over time. No permanent alteration of the scene. Just fast, vivid markings that hold their visibility until your documentation is complete.
Key Features
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Inverted-Can Design: The can is engineered to activate when held upside down, allowing precise ground-level marking without awkward positioning or additional tools.
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High-Visibility Fluorescent Orange: The bright fluorescent color cuts through visual noise at busy accident scenes and outdoor crime scenes, making marked evidence easy to spot and photograph.
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Water-Based Formula: Adheres to pavement, gravel, grass, and soil without permanently altering the surface or leaving an oily residue.
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17 oz. Aerosol Capacity: Large fill covers up to 300 linear feet per can, reducing the number of cans needed for extensive scene coverage.
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Temporary and Scene-Safe: Markings wear off naturally within approximately 60 days, supporting scene restoration needs and roadway maintenance requirements.
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Pairs with SEP200 Dispenser: For greater accuracy and a more upright working posture, use the optional SIRCHMARK Evidence Marking Paint Dispenser (SEP200), sold separately.
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Part of the SIRCHMARK Color System: Available in fluorescent orange (SEP100N), yellow (SEP100Y), and fluorescent pink (SEP100P), so investigators can color-code different evidence types across the same scene.
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HAZMAT Notice: Classified as an extremely flammable aerosol under pressure. A HAZMAT shipping charge applies at checkout.
Specifications
| Brand |
Sirchie |
| Model / MPN |
SEP100N |
| Retailer SKU |
SIR-SEP100N |
| UPC |
No barcode on file |
| Formula |
Water-based aerosol |
| Net Weight |
17 oz. (482g) |
| Coverage |
Up to 300 linear feet per can |
| Color |
Fluorescent Orange |
| Can Design |
Inverted aerosol (activates when held upside down) |
| Compatible Surfaces |
Pavement, gravel, grass, soil |
| Permanence |
Temporary; wears off naturally within approximately 60 days |
| HAZMAT Classification |
Yes; HAZMAT shipping surcharge applies |
Compatibility
The Sirchie SEP100N works on most outdoor, horizontal surfaces, including:
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Pavement (asphalt and concrete roads, parking lots, sidewalks)
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Gravel (gravel roads, shoulders, rural driveways)
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Grass (lawns, parks, roadsides, open fields)
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Soil (dirt roads, cleared lots, earthen perimeters)
The paint is not recommended as a substitute for permanent surface marking or formal evidence documentation. It is not designed for smooth vertical surfaces or indoor use. For scene sets requiring additional identification, pair the SEP100N with the SIRCHMARK Evidence Marking Paint Dispenser (SEP200) or combine it with Sirchie evidence flags and number markers for a complete, layered marking system.
Safety note: Contents are under pressure and vapors can be harmful. Keep away from heat, sparks, and open flame. Read all safety cautions on the back panel before use.
Intended Users
The Sirchie SIRCHMARK Evidence Marking Paint (SEP100N) is built for professionals who process crime scenes, accident sites, and search areas where rapid, visible documentation is essential.
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Law Enforcement Investigators and Detectives use the SEP100N to mark bullet casings, footprints, tire tracks, and other physical evidence quickly, without confusion about what has already been documented across a complex scene.
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Traffic Accident Investigators rely on it to define vehicle positions, debris fields, and impact points on roadways and shoulders, where ground-level marking must happen efficiently without unnecessary lane closures.
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Forensic Investigators and Crime Scene Technicians pair the fluorescent orange with the yellow (SEP100Y) and pink (SEP100P) to color-code different categories of evidence at the same location.
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Search and Rescue Teams use it to mark cleared perimeters, grid boundaries, and points of interest during large-scale ground searches where visual landmarks must cover wide distances.
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Emergency Responders identify hazardous zones, debris fields, or triage areas at mass casualty or multi-vehicle incidents where rapid scene organization is critical.
What's Included
- 1 x Sirchie SIRCHMARK Evidence Marking Paint, Fluorescent Orange (SEP100N), 17 oz. aerosol can
Note: The SIRCHMARK Evidence Marking Paint Dispenser (SEP200) is sold separately. Evidence flags and number markers are also sold separately.
Available at WCUniforms
WCUniforms is a veteran and law enforcement-owned specialty retailer focused on uniforms, tactical gear, forensic supplies, and public safety equipment for first responders and professionals across the United States. Unlike general-purpose retailers, we stock the tools investigators, officers, and forensic technicians actually trust in the field.
Shop with confidence at wcuniforms.com, where same-day shipping on in-stock orders, a no-hassle 30-day return policy, and real customer service back every purchase. Have a question about which SIRCHMARK product is right for your department? Call or chat and reach a real person instantly, no voicemails, no wait queues.