Claim: China has developed fire-resistant blankets made from heat-resistant fiberglass fibers.
Conclusion: The claim is misleading. Fiberglass fire blankets date back to the 1950s and there is a patented version in the US by Theodore Harry Diacos. Similar large vehicle blankets already exist and have been tested internationally.
Rating: Misleading 
Several social media users have claimed that China has developed a fire resistant blanket, implying an innovation. Verified X user ‘MarioNawfal’ shared such a claim with the caption : “China has developed fire-resistant blankets made from heat-resistant fiberglass fibers. They can withstand temperatures of up to 1000°C and extinguish flames within seconds by cutting off oxygen. CRAZY.” It includes a 26-second video of firefighters deploying a large blanket over a burning white car, which rapidly smothers the flames amid thick smoke. View the post below –
🇨🇳 China has developed fire-resistant blankets made from heat-resistant fiberglass fibers.
They can withstand temperatures of up to 1000°C and extinguish flames within seconds by cutting off oxygen.
CRAZYpic.twitter.com/nXD2kKUJzP
— Mario Nawfal (@MarioNawfal) May 13, 2026
Other users have shared similar claims that can be seen here and here
🔥🧑🚒 En Chine, des couvertures résistantes au feu ont été créées, capables de résister jusqu’à 1200 °C sans fondre.
Fabriquées avec des matériaux comme la fibre de verre, elles étouffent le feu en coupant le flux d’oxygène. pic.twitter.com/W0PAgvRkFe
— 𝟑 𝐞̀𝐦𝐞 𝐎𝐞𝐢𝐥 (@_3emeOeil) May 13, 2026
FACT CHECK
DigitEYE India decided to investigate this claim and found it to be misleading. Fiberglass-based fire blankets emerged during the 1950s, with a patented U.S. design credited to Theodore Harry Diacos. Comparable large-scale vehicle fire blankets have also been developed and tested in multiple countries worldwide.
Details :
We first conducted a reverse image search on various keyframes of the video to locate the exact source. The search took us to a video uploaded on the Chinese platform Douyin which consisted of a longer version. The description (translated into English) states : “How to choose a car fire blanket? Don’t worry! #Zhenjiang Anzhidun Car Fire Blanket , a “tactical black technology” specifically designed to combat #new energy fires The “tactical black technology” is here!” At 1:12, the same visuals used in the claim is shown, view a screenshot below –
Using the company name “Suntex” from the video, we searched for reports about the company and the production. According to a report, while generic fire blankets “burned through in seconds,” Suntex blankets endured a 60-minute burn test. Moreover, it is “co-developed with top universities” and “withstands 1000-1200°C long-term, 1500°C short-term.” View a section from the report below –
Following this, we conducted a web search with the phrase “fire blanket innovation by China” to learn if this is a novelty or not. We learnt that, around 1890, Manchester factory owner Thomas Fletcher produced “fire smothering cloths,” while the major breakthrough came in the 1940s when Dr. Russell Games Slayter and John H. Thomas at Owens Corning developed heat-resistant fiberglass materials for modern fire blankets.
The first fiberglass fire blankets hit the market by 1946 and the “1960s and 70s saw fire blankets evolve from industrial tools to household safety devices.” The report also notes that “a British company called Thomas Glover & Company developed the first residential fire blanket in 1968.” View a section from the report below –
Next, our search took us to the fiberglass version of the fire blankets patented in the US. The official pdf is dated October 11, 1955, labelled “FIRE BLANKET” by Theodore Harry Diacos, Chicago. While searching the pdf, under section 4, point 2, it is clearly stated that “A fire blanket of the class described, comprising, a section of incombustible fibre glass material”, proving that this was the earliest patented innovation. View a screenshot of this section below –
Therefore, such fiberglass fire blankets have been created and tested before. Though the Chinese company Suntex’s fiberglass blankets are genuine and tested but not a novelty or an innovation as claimed.
Thus, the claim is misleading.
