The EN45545<\/strong> is the European reference standard for the fire behavior of materials used in railway vehicles. It defines performance criteria related to: <\/p>\n Materials are classified according to increasing risk levels (HL1, HL2, HL3<\/strong>) and specific usage scenarios (inside or outside the vehicle), described in sets R22 and R23<\/strong>.<\/p>\n The HF1 flame-retardant compounds<\/strong> are designed to ensure fire resistance, reduced emission of toxic fumes, and minimal environmental impact.<\/p>\n These formulations are ideal for enclosed environments such as railway cabins<\/strong>, where it is crucial to protect passengers and operators in case of fire.<\/p>\n One of the most high-performing materials in the HF1 family is PA66 reinforced with 25% glass fiber<\/strong>, also known as LATAMID 66 H2 G\/25-V0HF1<\/strong>.<\/p>\n This material has passed technical and regulatory tests, proving suitable for both internal<\/strong> and external<\/strong> train components, according to R22\u2013R23<\/strong> criteria.<\/p>\n A multinational company in the filtration sector has adopted the PA66 GF25 V0HF1 compound to produce arms and fastening systems<\/strong> used in railway cabin air filters<\/strong>.<\/p>\n The main reasons for the choice were:<\/p>\n This application demonstrates the suitability of the compound not only for fire performance but also for precision and durability requirements.<\/p>\n The V0HF1 family<\/strong> includes compounds formulated on various technical polymers, all with flame-retardant certifications.<\/p>\n These alternatives allow meeting more stringent mechanical<\/strong>, thermal<\/strong>, or electrical<\/strong> requirements, replacing traditional thermosetting materials.<\/p>\n\n
HF1 Flame-Retardant Compound: Halogen-Free Formulations<\/h2>\n
Main Advantages:<\/h3>\n
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Case Study: PA66 GF25 and HL3 Certification<\/h2>\n
Key Technical Properties:<\/h3>\n
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\n Property<\/strong><\/td>\n Value<\/strong><\/td>\n<\/tr>\n<\/thead>\n\n \n Polymer base<\/td>\n PA66<\/td>\n<\/tr>\n \n Reinforcement<\/td>\n 25% glass fiber<\/td>\n<\/tr>\n \n Flame retardancy<\/td>\n UL94 V0 up to 0.75 mm<\/td>\n<\/tr>\n \n Railway certification<\/td>\n EN45545 \u2013 HL1, HL2, HL3 (R22 and R23)<\/td>\n<\/tr>\n \n Dimensional stability<\/td>\n High<\/td>\n<\/tr>\n \n Mechanical strength<\/td>\n High (static and dynamic)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Concrete Example: Fastening System for Cabin Filters<\/h2>\n
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V0hf1 Range: Variants and Technical Alternatives<\/h2>\n
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\n Polymer base<\/strong><\/td>\n Glass fiber range %<\/strong><\/td>\n Certifications<\/strong><\/td>\n<\/tr>\n<\/thead>\n\n \n PA66<\/strong><\/td>\n 25%\u201350%<\/td>\n UL94 V0, EN45545<\/td>\n<\/tr>\n \n PBT<\/strong><\/td>\n Up to 30%<\/td>\n UL94 V0<\/td>\n<\/tr>\n \n PPA<\/strong><\/td>\n Customizable<\/td>\n UL94 V0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n FAQ \u2013 EN45545 Flame-Retardant Compound<\/h2>\n