Generally, the surface of fireproof cable tray is sprayed with fireproof paint.

防火漆是由环氧树脂植物油酸酯化后，别离与氧化铁红、氧化铁黑、锌黄等颜料和体质颜料研磨，并加入催干剂，以、丁醇调制而成。

Fire retardant paint is prepared by esterification of epoxy resin with vegetable oleic acid, grinding with iron oxide red, iron oxide black, zinc yellow and other pigments and physical pigments, adding desiccant and butanol.

防火漆漆膜坚硬耐久，附着力良好，若与磷化底漆配套使用时，可提高漆膜的耐潮、耐盐雾和防锈功能。

The fireproof paint film is hard and durable with good adhesion. When used together with phosphating primer, it can improve the moisture resistance, salt spray resistance and rust prevention function of the paint film.

防火漆的防火机理大致可归纳为以下五点：

The fire prevention mechanism of fire-proof paint can be roughly summarized into the following five points:

(1) 防火漆自身具有难燃性或不燃性，使被维护基材不直接与空气接触，推迟物体着火和削减焚烧的速度；

(1) The fireproof paint itself is flame retardant or nonflammable, so that the maintained substrate does not directly contact with the air, delaying the ignition of objects and reducing the burning speed;

(2) 防火漆除自身具有难燃性或不燃性外，它还具有较低的导热系数，能够推迟火焰温度向被维护基材的传递；

(2) In addition to its flame retardancy or non flammability, the fireproof paint also has a low thermal conductivity, which can delay the transmission of flame temperature to the substrate to be maintained;

(3) 防火漆受热分出不燃惰性气体，冲淡被维护物体受热分出的可燃性气体，使之不易焚烧或焚烧速度减慢；

(3) The fire-proof paint separates non combustible inert gas when heated, and dilutes the combustible gas separated by the maintained object when heated, making it difficult to burn or slow down the burning speed;

(4) 含氮的防火漆受热分出NO、NH3等基团，与you机游离基化合，中断连锁反应，下降温度。

(4) The nitrogen-containing fireproof paint separates no, NH3 and other groups when heated and combines with organic free radicals to interrupt the chain reaction and reduce the temperature.

(5) 胀大型防火漆受热胀大发泡，构成碳质泡沫隔热层封闭被维护的物体，推迟热量与基材的传递，阻挠物体着火焚烧或因温度升高而形成的强度下降。防火电缆桥架

(5) The expanded fireproof paint is expanded and foamed by heat to form a carbon foam insulation layer to close the maintained object, delay the transfer of heat to the substrate, and prevent the object from burning or the strength reduction caused by temperature rise. Fireproof cable tray

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