Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

PhireGuard MB-512 Polyurethane Flame Retardant

PhireGuard MB-512 is a high-performance polyurethane flame retardant from the PhireGuard series by ICL—designed for flexible & rigid PU foams. It delivers excellent UL94 V-0 rating, low smoke density, and halogen-free phosphorus-nitrogen synergy. Compatible with water-blown systems, it ensures processing stability, low volatility, and long-term fire safety compliance without compromising foam physical properties.
  • phireguard mb 512 polyurethane flame retardant_3ae488f9
  • phireguard mb 512 polyurethane flame retardant_3ae488f9

Features Of PhireGuard MB-512 Polyurethane Flame Retardant

  1. Halogen-free formulation ensures low smoke density and reduced toxic gas emission during combustion.

  2. Excellent compatibility with flexible and rigid polyurethane foam systems without compromising physical properties.

  3. Efficient char-forming mechanism enhances flame inhibition and improves fire resistance in PU matrices.

  4. Thermally stable up to 220 °C, supporting standard PU processing conditions including slabstock and molded foam production.

  5. Non-migrating design provides long-term flame-retardant performance and prevents surface blooming or leaching.

Typical Applications Of PhireGuard MB-512 Polyurethane Flame Retardant

  1. Flexible polyurethane foams for upholstered furniture and automotive seating.

  2. Rigid PU insulation boards used in building envelope systems and cold storage panels.

  3. Integral skin and microcellular PU foams for transportation interior components.

  4. PU-based carpet underlays requiring compliance with CAL TB 117-2013 and EN 1021-1/2.

  5. Industrial gasketing and sealing foams where fire safety and dimensional stability are critical.

Specifications Of PhireGuard MB-512 Polyurethane Flame Retardant

Chemical TypePhosphorus-nitrogen synergistic intumescent system
Product FormPowder
AppearanceWhite to off-white free-flowing powder
Primary ApplicationsFlexible & rigid polyurethane foams
Key FeaturesHalogen-free, non-migrating, thermally stable
BenefitsMeets UL 94 HF-1, passes ASTM E84 Class 1 (Smoke Developed ≤ 450)
Recommended Loading Level12–18 wt% in polyol phase (varies by foam formulation)
Storage ConditionsStore in cool, dry place; protect from moisture and direct sunlight


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