Can fiberglass-reinforced plastic materials resist fire?
Thread Content
Recently, we experienced a safety incident here: a high-temperature exhaust pipe (with exhaust gas at around 140°C) caught fire during use; the pipe was made of fiberglass； Over time, the inner walls of the exhaust pipes accumulate combustible oil (similar to the waste oil produced by range hoods). This oil is absorbed by the absorption tower before being released outside. After the accident, doubts arose regarding the high-temperature resistance of fiberglass material; the company has many such fiberglass pipes – can this material still be used in similar environments?
After checking online, it turns out that fiberglass fire-resistant materials used in construction projects are classified as B2 grade, meaning they are combustible materials. The fire-resistant (high-temperature resistant) properties of fiberglass depend primarily on its matrix resin; different resin matrices are chosen based on the required performance levels. Currently, the most effective resin types for fire-resistant fiberglass include epoxy, high-temperature resistant vinyl, and phenolic resins. Depending on the manufacturing process, appropriate amounts of high-temperature resistant fillers such as aluminum oxide or calcium oxide can also be added. In summary, if a material needs to have fire-resistant properties, it is necessary to specify the exact requirements for that material
Glass fiber reinforced plastic materials are commonly used in environments with corrosive substances; fuel pipelines should instead use seamless steel pipes. Is this the original design? You can check it out
The fact that it doesn’t burn doesn’t mean it’s heat-resistant, just like glass. Different compositions of fiberglass-reinforced plastic result in varying fire resistance, and pipes have their own temperature range for proper use.
FRP is an epoxy resin material that is corrosion-resistant but flammable.