DEF Only Sticker – Diesel Exhaust Fluid Caution Label

I-027

This DEF Only sticker marks a diesel exhaust fluid fill location with the instruction USE DEF ONLY. I-027 measures 4 inches wide × 2½ inches tall and features a yellow CAUTION header, black lettering on white, and a fluid-and-exhaust pictogram.

Printed warning

CAUTION
USE DEF ONLY
(DIESEL EXHAUST FLUID)

Using any other fluid can
• Damage vehicle
• degrade fuel economy

Choose the correct fill-location label

This is an adhesive identification and caution label for a DEF fill location, not a diesel fuel tank label. Compare the complete wording and 4 × 2½-inch size with the equipment's existing marking and available label space before ordering.

The product is a sticker only; it does not include diesel exhaust fluid, a cap, a tank, or dispensing equipment. It does not physically prevent the wrong fluid from being added.

Placement and application

Follow the equipment manufacturer's specified label location at the matching DEF fill point. Keep the wording visible without covering existing instructions or interfering with cap operation. Apply to a suitable clean, dry surface.

Use the equipment manufacturer's instructions to confirm the correct fluid and filling procedure. Created, printed, cut, and shipped in the USA.

Need Spanish-language wording? See the Spanish DEF Only caution sticker I-027SP. For different wording or sizing, contact us.

Technical & Safety Data

Product Composition & Identification

Film Construction: 2.75 mil Polymeric Calendered Vinyl base paired with a 2.75 mil flexible clear Polymeric Calendered Vinyl overlaminate.

Adhesive System: Clear Solvent-Based Permanent Pressure Sensitive Acrylic.

Total Adhesive Thickness: 2.3 mil combined (1.2 mil base and 1.1 mil laminate).

Health, Safety & Regulatory Compliance

Fire Rating: Class A fire rating under ASTM E84-17 testing.

Commercial Safety: Meets the highest life safety requirements for indoor and outdoor commercial graphics.

Toxicity & Structure: Phthalate-Free Film Structure.

Regulatory Standards: Meets the health and safety requirements set forth by CPSIA, REACH, RoHS, and California Proposition 65.

Physical & Chemical Properties

Chemical Resistance: Resists mild acids, mild alkalis, solvents, and salts.

Moisture Resistance: Excellent resistance to water, including full immersion.

Tensile Strength: 12.5 Pounds/Inch.

Dimensional Stability: 0.020 Inch (Machine Direction).

Peel Adhesion: 4.5 Pounds/Inch from Stainless Steel.

Environmental & Temperature Tolerances

Operating Temperature Range: -40°F to 190°F.

Application Temperature: 50°F to 80°F recommended.

Installation Surface: Clean, dry, and free of dust, dirt, debris, or grease.

Outdoor Lifespan: Up to 5 years permanent durability.

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