☣️ UN 3469 • CLASS 3
UN 3469 — Paint related material, flammable, corrosive
Placard: Flammable. ERG Guide 132. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
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⚠️ This page is a quick-reference aid. For real incidents: stage upwind, isolate, deny entry, request Hazmat early, and consult the current ERG + SOP/SOG.
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UN 3469 Quick Details
UN 3469
Product name: Paint related material, flammable, corrosive
DOT Class: 3
Placard type: Flammable
ERG Guide: 132 (check current ERG)
Initial isolation: ERG 132: isolate spill/leak 50m all directions; if tank/rail car involved in fire isolate 800m all directions
Common Hazards of UN 3469
- Flammable/combustible material.
- May be ignited by heat, sparks or flames.
- Vapors may form explosive mixtures with air.
- Vapors may travel to source of ignition and flash back.
- Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas
- Vapor explosion hazard indoors, outdoors or in sewers.
- Those substances designated with a (P) may polymerize explosively when heated or involved in a fire.
- Runoff to sewer may create fire or explosion hazard.
Chemical Identity & Physical Properties
| Also known as | Paint related materialFlammable corrosive paint mixtureCorrosive paint thinnerPaint coating materialFlammable paint product |
| Appearance | Typically a liquid mixture varying in color depending on formulation, with solvent-like odor. May contain corrosive components (acids, bases) along with flammable solvents. |
| Flash Point | Varies by formulation, typically below 23°C (73°F) for Class 3 materials |
| Boiling Point | Varies by formulation, typically 60-150°C (140-302°F) depending on solvent content |
| Vapor Density | Greater than 1 (heavier than air) - vapors will accumulate in low areas |
| Water Reactivity | May react with water due to corrosive components; approach with caution |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 3469
Extinguishing Media
Alcohol-resistant foam (AR-AFFF) preferred; CO2, dry chemical, water spray for cooling
PPE Requirements
⚠️ Level B minimum with SCBA required; chemical-resistant suit due to corrosive properties; avoid skin contact
Isolation & Evacuation
ERG 132: isolate spill/leak 50m all directions; if tank/rail car involved in fire isolate 800m all directions
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 132).
First Actions for a UN 3469 Incident
- CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
- Keep unauthorized personnel away.
- Stay upwind, uphill and/or upstream.
- Ventilate closed spaces before entering, but only if properly trained and equipped.
- Isolate spill or leak area for at least 50 meters (150 feet) in all directions.
- For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.
- For non-highlighted materials: increase the immediate precautionary measure distance, in the downwind
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📋 Copy & Share Field Card
UN 3469 — Paint related material, flammable, corroHAZMAT RADIO NOTE — UN 3469
Product: Paint related material, flammable, corrosive
Class 3 / Flammable / ERG 132
PPE: Level B minimum with SCBA required; chemical-resistant suit due to corrosive properties; avoid skin contact
ISOLATION: ERG 132: isolate spill/leak 50m all directions; if tank/rail car involved in fire isolate 800m all directions
ACTION: Stage upwind · Isolate · Deny entry · Request HazmatRADIO
Use for: Quick radio or face-to-face size-up. Short, structured, field-ready.
=== IC HAZMAT BRIEFING ===
UN 3469 — Paint related material, flammable, corrosive
Class: 3 | Placard: Flammable | ERG Guide: 132
Appearance: Typically a liquid mixture varying in color depending on formulation, with solvent-like odor. May contain corrosive components (acids, bases) along with flammable solvents.
Water Reactivity: May react with water due to corrosive components; approach with caution
Extinguishing: Alcohol-resistant foam (AR-AFFF) preferred; CO2, dry chemical, water spray for cooling
PPE: Level B minimum with SCBA required; chemical-resistant suit due to corrosive properties; avoid skin contact
Isolation: ERG 132: isolate spill/leak 50m all directions; if tank/rail car involved in fire isolate 800m all directions
— Key Hazards —
• Flammable/combustible material.
• May be ignited by heat, sparks or flames.
• Vapors may form explosive mixtures with air.
— First Actions —
• CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
• Keep unauthorized personnel away.
• Stay upwind, uphill and/or upstream.
• Ventilate closed spaces before entering, but only if properly trained and equipped.
SOURCE: allfirefighter.com/hazmat/un/3469 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN3469 Paint related material, flammable, corrosive Cls3 ERG132 | allfirefighter.com/hazmat/un/3469SMS / 160 CHAR
Use for: Quick text to command or incoming units. Fits in a single SMS. Includes link to full page.
⚠️ Quick-reference only. Always use current ERG + SOP/SOG for incident-specific actions.
Page: https://allfirefighter.com/hazmat/un/3469
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Frequently Asked Questions about UN 3469
Flammable/combustible material. May be ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas Vapor explosion hazard indoors, outdoors or in sewers. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard.
CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper Keep unauthorized personnel away. Stay upwind, uphill and/or upstream.
Level B minimum with SCBA required; chemical-resistant suit due to corrosive properties; avoid skin contact
Water reactivity: May react with water due to corrosive components; approach with caution. Recommended extinguishing: Alcohol-resistant foam (AR-AFFF) preferred; CO2, dry chemical, water spray for cooling.
ERG Guide 132 recommendation: ERG 132: isolate spill/leak 50m all directions; if tank/rail car involved in fire isolate 800m all directions
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 132 and your department SOP/SOG for incident-specific protective actions.
Sources (high level): DOT/PHMSA marking & class concepts + ERG usage principles.
This page does not reproduce ERG guide text—always consult the current ERG for incident-specific protective actions.