What this industry manufactures
Coach interior panelling, seat shells and mouldings, bus body panels and roof sections, ducting, electrical enclosures and cable-management housings, and infrastructure components for tunnels and stations. In each case the FRP part is one item inside a larger specification, and the fire requirement is usually written against the finished component rather than against the resin drum.
Why Fire Retardant Resin is suitable
Both published grades list transport work among their applications. Fire Retardant Resin is the halogenated grade. ISO Fire Retardant Resin is a halogen-free, ATH-filled isophthalic formulation, published at 400 cPs with a 5.5-minute gel time, 35% styrene and a density of 1.18 g/cm³. Which of the two suits a project is a real decision and it is made on the fire retardant resin hub, not by price. Note that ISO in that product name refers to isophthalic chemistry and is not a certification claim.
Required resin characteristics
- 01The exact fire requirement in the project specification, quoted as written — a standard number, a class, or a customer clause
- 02Who is responsible for testing the finished component, and against which configuration
- 03The component itself: laminate construction, thickness, reinforcement, any core, and the surface system
- 04Whether the specification rules out halogenated chemistry, which decides the grade before anything else does
- 05Quantity, documentation required and delivery location
Manufacturing process
This is a product-selection page and it does not certify anything. A fire retardant resin changes how a laminate behaves in fire, but the behaviour that gets tested belongs to the finished component — its construction, thickness, reinforcement, filler loading, core, surface system and cure state — not to the liquid in the drum. Neither grade's TDS publishes a flame-spread rating, smoke or toxicity index, oxygen index, standard classification or test certificate, so none should be inferred from the words "fire retardant". Where a project requires a tested and certified component, that testing is part of the project, and the resin selection is one input to it. The FR grade guide sets out these limits in plain terms.
Advantages
- States the halogenated and halogen-free routes as a real decision rather than a single FR product
- Uses only the figures each grade actually publishes
- Keeps resin data separate from finished-component fire performance and certification
- Tells a buyer exactly what to extract from their own specification before enquiring
Common products produced
- Railway coach interior panels and mouldings
- Bus and commercial vehicle body panels
- FRP electrical enclosures and cable housings
- Ducting and ventilation components
- Tunnel, station and infrastructure FRP components
Frequently asked questions
No, and this is the single most important thing on the page. Certification belongs to a tested finished component in a tested configuration. The resin is one input. Neither grade publishes a rating, classification or test certificate, so none can be passed on to your part. See the FR grade guide for what the term does and does not promise.
If the project specification rules out halogenated chemistry, that decides it: the halogen-free, ATH-filled ISO Fire Retardant Resin is the route. Where the specification is silent, the choice should be made against the actual requirement rather than by default. The fire retardant hub sets the two routes side by side.
No. ISO in that product name refers to isophthalic resin chemistry, which is a description of the backbone, not a certification. This is a common and expensive misreading in tender documents, so it is worth confirming in writing before a submission relies on it.
ATH is aluminium trihydrate, a mineral filler used in halogen-free fire retardant formulations. Its published role in the grade is as the fire retardant filler system. Loading levels, and the effect of filler on handling and on a finished laminate, are formulation and process questions to raise directly rather than infer.
Do not assume so. The published gel time and viscosity differ from a general-purpose grade, and a filled system handles differently during lay-up. Confirm working properties against the grade's own TDS and trial the process before committing a production run.
The fire requirement exactly as your specification words it, the finished component and its construction, whether halogenated chemistry is permitted, the documentation you need, quantity and delivery location. A product name alone cannot answer a specification.
Have a fire requirement in your specification?
Send the requirement as written, the finished component, whether halogenated chemistry is permitted, the documentation you need, quantity and delivery location.