{"id":3318,"date":"2026-08-29T03:00:53","date_gmt":"2026-08-28T19:00:53","guid":{"rendered":"http:\/\/www.dinhvitoancau.com\/blog\/?p=3318"},"modified":"2026-08-29T03:00:53","modified_gmt":"2026-08-28T19:00:53","slug":"is-af-coated-glass-fire-resistant-49fe-54bd7d","status":"publish","type":"post","link":"http:\/\/www.dinhvitoancau.com\/blog\/2026\/08\/29\/is-af-coated-glass-fire-resistant-49fe-54bd7d\/","title":{"rendered":"Is AF coated glass fire – resistant?"},"content":{"rendered":"

As a supplier of AF (Anti – Fingerprint) coated glass, I often encounter various questions from customers. One question that has come up more frequently lately is whether AF coated glass is fire – resistant. In this blog, I’ll explore this topic in detail, drawing on scientific knowledge and industry experience. AF Coated Glass<\/a><\/p>\n

<\/p>\n

Understanding AF Coated Glass<\/h3>\n

Before delving into the fire – resistance aspect, it’s essential to understand what AF coated glass is. Anti – fingerprint coated glass is a type of glass that has been treated with a special coating. This coating serves multiple purposes. Firstly, it reduces fingerprints and smudges on the glass surface, making it easier to clean and maintain. This is particularly useful for applications where the glass is frequently touched, such as smartphone screens, touch – panel monitors, and display cases.<\/p>\n

The AF coating is usually a thin layer of a fluoropolymer or other similar materials. These materials have low surface energy, which prevents oils and dirt from adhering strongly to the glass. As a result, a simple wipe can remove most of the contaminants. The coating also enhances the scratch – resistance of the glass to some extent, protecting the surface from minor abrasions.<\/p>\n

Fire – Resistance: What Does it Mean?<\/h3>\n

Fire – resistance in the context of glass refers to the ability of the glass to withstand the effects of fire for a certain period. This includes not only resisting the high temperatures of the fire but also maintaining its structural integrity and not allowing the fire to spread through the glass. There are different levels of fire – resistance, and glass is often classified according to fire – resistance ratings, such as the time it can hold up under a standard fire test, e.g., how long it can prevent flames and heat transfer for 30 minutes, 60 minutes, 90 minutes, or more.<\/p>\n

The Fire – Resistance of AF Coated Glass<\/h3>\n

To determine whether AF coated glass is fire – resistant, we need to look at both the base glass and the AF coating.<\/p>\n

The Base Glass<\/h4>\n

The base glass used in AF coated glass can vary. Common types include soda – lime glass, borosilicate glass, and aluminosilicate glass. Each of these has different fire – resistance characteristics.<\/p>\n

Soda – lime glass is the most widely used type of glass in everyday applications. It has a relatively low melting point, typically around 700 – 800\u00b0C. When exposed to high – temperature fire conditions, soda – lime glass will start to soften and deform relatively quickly. It is not inherently fire – resistant and can break easily under thermal stress.<\/p>\n

Borosilicate glass, on the other hand, has better fire – resistance properties. It has a higher melting point (around 1,200 – 1,300\u00b0C) and a lower coefficient of thermal expansion compared to soda – lime glass. This means that it can withstand higher temperatures without deforming or breaking as easily. Borosilicate glass is often used in laboratory glassware and some high – temperature applications because of its ability to endure thermal shocks.<\/p>\n

Aluminosilicate glass is also known for its good mechanical strength and thermal stability. It has a relatively high melting point and can tolerate high temperatures, making it a better option for applications where fire – resistance is a concern compared to soda – lime glass.<\/p>\n

The AF Coating<\/h4>\n

The AF coating itself has very limited contribution to the fire – resistance of the glass. The coating materials are generally organic or organo – fluoride compounds. These substances have relatively low thermal stability. When exposed to high temperatures close to or above their decomposition temperatures, the AF coating will break down.<\/p>\n

The decomposition of the AF coating usually starts at temperatures well below the melting point of the base glass. For example, many fluoropolymer – based AF coatings may start to decompose around 200 – 300\u00b0C. Once the coating decomposes, it loses its anti – fingerprint properties and has no positive effect on enhancing the fire – resistance of the glass. In fact, if the decomposition of the coating is accompanied by the release of flammable gases or volatile substances, it could even potentially contribute to the spread of fire in the immediate vicinity of the glass.<\/p>\n

Factors Affecting the Fire – Resistance of AF Coated Glass<\/h3>\n

There are several factors that can influence the fire – resistance of AF coated glass:<\/p>\n

Thickness of the Base Glass<\/h4>\n

Thicker glass generally has better fire – resistance. A thicker section of glass takes longer to heat up and transfer heat through. This means that it can withstand the high temperatures of a fire for a more extended period before reaching a critical state where it deforms or breaks.<\/p>\n

For example, a thick borosilicate glass with an AF coating may be able to resist fire for a longer time compared to a thin soda – lime glass with the same coating. However, it’s important to note that even a thick piece of non – fire – rated soda – lime glass will eventually succumb to the heat of a fire.<\/p>\n

Coating Quality and Integrity<\/h4>\n

The quality of the AF coating and its integrity on the glass surface can also affect the behavior of the glass in a fire. A well – applied and high – quality coating may have better adhesion to the glass and decomposition characteristics. However, if the coating has defects, such as cracks or uneven coverage, it can be more prone to premature decomposition, which can potentially lead to a more rapid failure of the glass in a fire situation.<\/p>\n

Applications and Fire – Safety Considerations<\/h3>\n

Given the limitations of the fire – resistance of AF coated glass, it’s important to consider its applications from a fire – safety perspective.<\/p>\n

In applications where the glass is not exposed to high – temperature fire risks, such as in normal consumer electronics (smartphones, tablets), the fire – resistance of the glass is not a major concern. The main functions of the AF coating, like anti – fingerprint and scratch – resistance, are the primary considerations.<\/p>\n

However, in applications where fire – safety is crucial, such as in building facades, fire – rated partitions, or industrial safety equipment, AF coated glass alone may not be sufficient. In these cases, fire – rated glass should be used. Fire – rated glass is specially designed and tested to meet specific fire – resistance standards. It may be made of fire – resistant base materials or have additional layers and treatments to enhance its ability to withstand fire.<\/p>\n

If you still want to use AF coated glass in a fire – sensitive area, it can be combined with other fire – protection measures. For example, the glass can be installed in a proper frame system that has fire – blocking properties. Additionally, sprinkler systems or other fire – suppression equipment can be used in the vicinity to enhance overall fire safety.<\/p>\n

Conclusion<\/h3>\n

In conclusion, AF coated glass is generally not fire – resistant in the strict sense. The base glass used in AF coated glass can vary in its fire – resistance capabilities, with some types like borosilicate and aluminosilicate offering better performance than soda – lime glass. However, the AF coating itself has poor thermal stability and may decompose at relatively low temperatures, contributing little to the glass’s fire – resistance.<\/p>\n

<\/p>\n

When considering applications, it’s important to match the fire – safety requirements of the environment with the appropriate type of glass. For applications with high fire – risk, fire – rated glass should be the primary choice.<\/p>\n

Large Screen Touch Screen<\/a> If you are in the market for high – quality AF coated glass for applications where anti – fingerprint and scratch – resistance are key, I am here to provide you with the best products. We have a wide range of AF coated glass options suitable for various industries and applications. Our products are known for their excellent coating quality and performance. Contact me to discuss your specific needs and start the procurement process.<\/p>\n

References<\/h3>\n