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玻璃钢通常在200～240℃时开始产生较淡的烟雾,260～340℃时变黄,340～420℃时变黑并燃烧。关于难燃化问题在玻璃钢研究的初期就是一个研究课题,由于难燃性聚酯(含有卤素化合物)的开发研制,实现难燃化已成为可能。最近,不燃性玻璃钢已经问世。国铁的地铁车上采用了玻璃钢厕所。厕所和盥洗室由于用水频繁,而且清扫时又大量地使用消毒液与水,所以容易发生腐蚀。1986年,711系电车采用了玻璃钢厕所,随后又扩大了使用范围,在维修简单化、清洁性、耐腐蚀性等方面取得了很大的成果。但在日常检修方面还存在着以下一些问题; (1)检修踏板下的配管和阀类配件时必须打开外墙板及室内通道侧的检修盖,在侧面进行作业,因此检修操作非常困难。
FRP usually begins to produce lighter smoke at 200 ~ 240 ℃, turns yellow at 260 ~ 340 ℃, turns black and burns at 340 ~ 420 ℃. The issue of flame retardancy is a research topic in the early days of FRP research. Due to the development of flame retardant polyesters (containing halogen compounds), it has become possible to achieve flame retardancy. Recently, nonflammable FRP has come out. The subway car using glass fiber reinforced plastic toilet. Toilets and washrooms are prone to corrosion due to frequent use of water and extensive use of disinfectant and water during sweeping. In 1986, the 711 tramway used fiberglass toilets, and then expanded the use of the range, made great achievements in the maintenance of simple, clean, corrosion resistance and so on. However, there are some problems in routine maintenance. (1) Maintenance and repair of pylons and valve fittings under the pedal must be done on the sides of the outer panel and the indoor side access. Therefore, it is very difficult to perform maintenance.