Solvent Red Dye – A Distinctive Marker For Solvent Fuels, Combining Performance And Compliance

In the solvent fuel industry, color serves not only as a visual feature of products but also plays a critical role in marking and differentiating fuel grades. As one of the most widely used colorants, solvent red dye has become the top choice for many solvent fuel manufacturers due to its bright hue and excellent compatibility with solvents.

As a synthetic azo-based solvent dye, its core advantage lies in high compatibility with various solvent fuels such as diesel, gasoline, kerosene, etc. It enables uniform coloring without complex processes, and does not affect key fuel properties including combustion performance and viscosity.

1. Excellent SolubilityInsoluble in water but rapidly dissolves in various organic solvents and hydrocarbon fuels, with no precipitation or agglomeration. It forms a uniform and transparent red solution, preventing stratification or fading – a key advantage over water-based dyes.
2. Outstanding StabilityThermostable at temperatures above 200℃, adapting to temperature changes during fuel storage and transportation. With a light fastness rating of 5–6, it maintains vivid color under long-term light exposure without yellowing or fading.
3. Strong ComplianceMeets industrial-grade dye standards, releases no toxic or harmful substances, and complies with environmental and safety requirements in the fuel industry. It is commonly used to distinguish solvent fuels of different grades and applications; for instance, red dye is used in some regions to mark off-road diesel for easy supervision and identification.

1. Recommended dilution ratio: 1:1000 to 1:5000, adjustable based on desired color intensity.
2. Use stirring equipment for thorough mixing to avoid uneven coloring from excessive local concentration.
3. Store in a cool, dry, dark place and keep sealed to prevent degradation caused by moisture absorption or light exposure.
4. Beyond solvent fuel coloring, solvent red dye is also widely applied in plastics, printing inks, lubricating oils and other fields. With strong versatility and practicality, it is an ideal option for solvent fuel producers to enhance product identification.