A space blanket (also known as a Mylar blanket, first aid blanket, emergency blanket, thermal blanket or weather blanket) is a blanket used in emergencies to reduce heat loss in a person’s body caused by thermal radiation, water evaporation and convection.
First developed by NASA in 1964 for the US space program, the material consists of a thin sheet of plastic (often PET film) that is coated with ametallic reflecting agent, making it metallized polyethylene terephthalate (MPET), usually gold or silver in color, which reflects up to 97% of radiated heat. Space blankets are made by vacuum depositing a very precise amount of pure aluminum vapor onto a very thin, durable film substrate.
In their principal usage, space blankets are included in many emergencies, first aid, and survival kits because they are usually waterproof and windproof. That, along with their low weight and ability to pack into a small space, has made them popular among outdoor enthusiasts and emergency workers. Space blankets are often given to marathoners and other endurance athletes at the end of races, or while waiting before races if the weather is chilly.
In first aid the blankets are used to prevent/counter hypothermia. A threefold action facilitates this:
The airtight foil reduces convection
Heat loss caused by evaporation of perspiration, moisture or blood is minimized by the same mechanism
To a limited extent the reflective surface inhibits losses caused by thermal radiation.
In a hot environment they can be used to provide shade, but using them to wrap a person would be counterproductive, because body heat would get trapped by the airtight foil. This effect would exceed any benefit gained from heat reflection to the outside.
Space blankets are used to reduce heat loss from a person’s body, but as they are constructed of PET film, they can be used for other applications for which this material is useful, such as insulating containers—e.g. for DIY solar projects—and other applications.
The application of Space Blanket in an Emergency
The application of Space blanket in the tropical area like Malaysia is even more than the cold climate. Following are some of the practical usage:
It can help to keep warm during cold and raining weather
It can be used as raincoat as the material is waterproof
It can be used as sun shield under the strong sunlight. The reflective coating is suitable to reflect the heat
In an emergency, the reflective light can assist to attract the attention for help
Compact and Easy to bring along in the beg for travelling, cycling, mountain climbing, hiking, and many others outdoor adventurous activities
Can be keep in the car as sun-shield
In Malaysia, it is rather difficult to purchase the space blanket as it is not a popular item, and the public is not aware of its usefulness. Currently, the consumer can purchase the space blanket on-line or in some outdoor goods store, with priced between RM10-20 per piece. The space blanket is not designed to be reused, as the result we do recommend to prepare a few spare blankets for emergency. In the hot and wet climate, the stored space blanket might be deteriorated by time, it is recommended to replace with new space blanket every 3-4 years.
If you are interested to purchase the space blanket, kindly fill in the contact form here.
Please inform us your purchasing volume, contact number, email, shipping location and prefer shipping method (EMS, Pos Laju, Post Express, Small Parcel). We will then inform you the quotation as well as shipping fee within 3 days.