Flame Retardants & Smoke Suppressants

Flame Retardants & Smoke Suppressants

AL FR & MAG FR Series – Setting New Standards in Fire Protection with Halogen-Free Flame Retardant Coatings

About AL FR & MAG FR Series

20 Microns introduces AL FR and MAG FR Series, engineered to deliver halogen-free flame retardant coatings that comply with modern environmental and safety standards. These advanced formulations are designed to replace traditional halogen-based materials while maintaining excellent coating performance, providing a safe, effective, and eco- friendly alternative for diverse coating systems.

Why Choose Halogen-Free Flame Retardants?

Flame retardants are crucial in reducing fire risks in coatings. However, halogen-based retardants release toxic gases during combustion, raising environmental and health concerns.

AL FR & MAG FR Series provide a non-toxic, halogen-free solution, ensuring safer application and sustainable performance without compromising on coating quality.

Product Overview

AL FR Series (Hydrated Alumina Based)

The AL FR Series is a hydrated alumina-based flame retardant designed to improve fire resistance and reduce the need for halogenated additives. When heated above 220°C, AL FR decomposes, releasing about 35% water and leaving 65% alumina, effectively quenching the flame and preventing oxygen contact with the polymer surface.

It also minimizes smoke generation and enhances formulation safety.

Key Benefits:

  • Alternative to Halogens
  • Low oil absorption
  • Smoke suppression through water vapor generation
  • Improves photo-initiator efficiency
  • Char formation

MAG FR Series (Magnesium Hydroxide Based)

The MAG FR Series is based on magnesium hydroxide, offering superior thermal stability and higher heat absorption than AL FR.

It decomposes at around 330°C, releasing water vapor and forming a protective barrier against flame propagation.

Its excellent heat removal capacity makes it ideal for high-performance coatings that require advanced fire protection.

Key Benefits:

  • Excellent thermal stability
  • Greater heat removal capacity
  • Non-toxic and environmentally safe
  • Enhances coating durability
  • Suitable for high-temperature systems

Application Areas

AL FR & MAG FR Series are widely used in:

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Architectural Coatings
for safe indoor and outdoor environments

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High Solids / Low VOC Coatings
ensuring sustainability and compliance

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UV Coatings
for high-performance, light-resistant finishes

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Organic Colored Pigments
maintaining vibrant colors with fire resistance

Product Grades

  • AL FR Series
  • MAG FR Series

Technical Insight

AL FR releases water at 220°C, diluting combustible gases, while MAG FR performs beyond 330°C, absorbing more heat (328 cal/g vs 280 cal/g for AL FR).

This makes MAG FR a more effective flame retardant for high-heat applications, whereas AL FR is ideal for standard architectural and decorative coatings.

Explore More Products

Visit our Coatings Additives Portfolio to explore our complete range of performance- enhancing solutions.

Frequently Asked Questions (FAQs)

Q1: What makes AL FR & MAG FR Series halogen-free flame retardants unique?

They replace conventional halogen-based additives with eco-friendly materials that reduce toxic emissions while maintaining superior flame resistance.

Q2: What are the main differences between AL FR and MAG FR?

AL FR (hydrated alumina) releases water at 220°C, while MAG FR (magnesium hydroxide) activates at 330°C with higher heat absorption, making it suitable for more demanding conditions.

Q3: Can AL FR & MAG FR be used in water-based coatings?

Yes, both grades are highly compatible with architectural and water-based coatings.

Q4: Do these additives affect coating appearance or gloss?

No, they actually enhance gloss retention and maintain smooth film formation.

Q5: Are AL FR & MAG FR environmentally safe?

Absolutely. Both series are non-toxic, halogen-free, and designed for sustainable coating formulations.


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