Aluminum Hydroxide

Aluminum hydroxide is non-toxic and halogen-free, making plastic products flame retardant

Aluminum hydroxide is non-toxic, halogen-free, does not produce corrosive products, and has a low price. However, its application is limited by two aspects. Firstly, like other fillers, it does not have a reinforcing effect.

Adding aluminum hydroxide to thermoplastic materials can cause a decrease in mechanical strength, especially impact strength. Although coupling agents are used to improve strength, there is still no significant enhancement. Therefore, over 95% of aluminum hydroxide is used in thermosetting plastics.

In glass fiber reinforced unsaturated polyester casting plastics (such as various high-voltage or low-voltage electrical switches), aluminum hydroxide is used as a filler to give plastic products flame retardancy, smoke suppression, and arc resistance. Aluminum hydroxide is also used in glass fiber reinforced plastic laminates, such as glass fiber reinforced plastic tiles, pipes, storage tanks, etc., with good flame retardancy.

Enhanced arc resistance and arc trace resistance. The epoxy resin filled with aluminum hydroxide has a bright future in the production of transformers, insulation equipment, switchgear, and other aspects.