How Zinc Borate Works and Where You Can Find It in Everyday Products

Zinc borate might not be something you think about often, but it plays a quiet and important role in the safety of many everyday items. From electrical cables to wall coatings, this compound helps protect products from fire and fungus.

How It Works

Zinc borate is a flame retardant and smoke suppressant. When a material containing zinc borate is exposed to high heat, the compound undergoes a chemical change. It releases water and forms a stable glass-like surface. This process:

- Slows down combustion

- Reduces the release of toxic smoke

- Helps keep the structural integrity of the material longer during fire exposure

Common Products That Use Zinc Borate

Zinc borate is added to a wide range of products including:

- Wire and cable insulation

- Upholstery and furniture fabric coatings

- Plastic panels and wall coverings

- Roofing materials

- Automotive parts

- Circuit boards and electronic casings

Its role is often combined with other flame retardants to meet fire safety standards required in construction, transportation, and consumer electronics.

Environmental Benefits

Unlike some flame retardants that contain halogens or heavy metals, zinc borate is considered more environmentally friendly. It produces less smoke and fewer toxic gases when exposed to fire. That makes it a popular choice in green building materials and eco-safe manufacturing processes.

A Dual Function Additive

Zinc borate is not only a flame retardant. It also works as an antifungal agent. This makes it valuable in materials exposed to moisture, such as bathroom wallboards, outdoor coatings, and marine applications.

Final Thoughts

Zinc borate is one of those materials that quietly enhances the safety, durability, and performance of many everyday products. Whether you are building a home or designing electronics, understanding its benefits can help you make smarter and safer material choices.