The threat is real.

Does your current fire containment plan check all the boxes? The HOT-STOP 'L' does. Check out the HOT-STOP 'L' Accreditation Check List below to find out!

Lithium-ion batteries have been identified as in-flight fire hazards by the Federal Aviation Administration (FAA). These batteries can be found in devices such as cell phones, tablets, laptops, e-cigarettes, and even defibrillators, all of which could be on board an aircraft at anytime. The HOT-STOP® 'L' Fire Containment Kit is burn certified and designed to contain 100% of a runaway battery event, including toxic smoke, fire, gases, and shrapnel. These kits are a valuable safety item that every aircraft owner/operator should consider having on board. So, the question remains, how will you contain a runaway battery on board your aircraft?


The HOT-STOP 'L' is the fastest way to contain a Lithium-ion fire.


The kit deploys in seconds with as few as 5 easy steps!


With zero-tolerance technology, you get zero smoke emission.


This kit has been burn certified by an FAA registered laboratory.


With the extensive testing done by the creators of HOT-STOP, their expertise in the fire containment field has allowed them to efficiently match the right size fire containment vessel for the right job. Whether the Lithium-Ion battery powered device be on board an aircraft at 38,000 feet, an underwater craft, on a medical cart, or in a spacecraft, HOT-STOP ‘L’ is your solution for 100% containment in any situation. 


As the leader in lithium-ion battery fire containment, all HOT-STOP ‘L’ Kits are Burn Certified and tested at an FAA-Registered Laboratory. In addition, all HOT-STOP ‘L’ products have also received the ultimate FIREPROOF designation as defined by 14 CFR 1.1 with the FAA (AC20-135).

This designation sets HOT-STOP ‘L’ Kits apart from other products and assures customers that this containment solution has successfully completed the most rigorous testing to achieve FIREPROOF status and protect them from the threat of lithium-ion battery fires.

The Powerplant Fire Penetration test is used to demonstrate compliance with the aircraft powerplant (i.e. engine) fire protection requirements of the FAA. There are two types of fire protection designations as defined by 14 CFR 1.1:

Fire Resistant: the capacity to withstand the heat associated with fire at least as well as aluminum alloy in dimensions appropriate for the purpose for which they are used.

Fireproof: the capacity to withstand the heat associated with fire at least as well as steel in dimensions appropriate for the purpose for which they are used. The standard test used to determine the fire protection designations is detailed in FAA Advisory Circular (AC) No. 20-135, titled “Powerplant Installation and Propulsion System Component Fire Protection Test Methods, Standards, and Criteria” and DOT/FAA/AR-00/12; Chapter 12, titled “Aircraft Materials Fire Test Handbook; Powerplant Fire Penetration Test”. 

The test utilizes a modified gun-type oil burner which is calibrated to provide a high-intensity flame with a minimum average flame temperature of 2,000 °F and minimum heat transfer rate of 4,500 BTU/hr or 9.3 BTU/ft2-sec.

The sample under test must withstand this high-intensity flame for either five minutes to be designated “Fire Resistant” or fifteen minutes to be designated “Fireproof”.

The HOT-STOP® 'L' Fire Containment Kit successfully prevented the high-intensity flame from penetrating through its wall. The Containment Kit passed the five-minute Fire-Resistant test, the fifteen minute FireProof test, and the extended 30 minute test! Following the results of this testing, the HOT-STOP® 'L' Fire Containment Kit can be considered Fireproof as defined by the Code of Federal Regulations (14 CFR 1.1) and as demonstrated by the Federal Aviation Administration’s (AC 20-135) test procedure. Based on the 14 CFR 1.1 definition of FireProof, the HOT-STOP® 'L' Fire Containment Kit has the capacity to withstand the heat associated with fire at least as well as steel in dimensions appropriate for the purpose for which it is used (14 CFR 1.1).


​HOT-STOP ‘L’ products pass Vertical Flammability Testing as defined the FAA 14 CFR Part 25.853 Appendix F.