TB 93 Thermo-Gel Fire Blocking Gel

Question 1

Thermo-Gel is a liquid concentrate composed of ______.

Answer 1

super absorbent polymers.

Question 2

These super absorbent polymers can absorb ____ their weight in water.

Answer 2

hundreds of times

Question 3

The gel, when applied to the exterior surface of combustible materials, provides an _____ between the heat of a fire and the protected surface.

Answer 3

insulating zone

Question 4

Properly applied, Thermo-Gel provides a high level of protection from _____.

Answer 4

radiant heat, flying embers and direct flame impingement.

Question 5

Foaming agents (such as Class “A” foam) are mixed with air and water to produce air bubbles in a process known as ____.

Answer 5

aeration.

Question 6

An aerated foam solution increases the surface area of the liquid thereby increasing the _____ of the foam solution.

Answer 6

heat absorptive capability

Question 7

The increased surface area also improves the mixture’s ability to cling to ____.

Answer 7

vertical surfaces.

Question 8

Tests have demonstrated that air bubbles burst when exposed to temperatures in the range of ____ Fahrenheit.

Answer 8

170 degrees

Question 9

Foam blankets break down ____ following application.

Answer 9

15 to 30 minutes

Question 10

Thermo-Gel produces a bubble of water surrounded by a ____.

Answer 10

polymer shell

Question 11

Being filled with water instead of air, the bubble can _____ than compressed air foams.

Answer 11

absorb far more latent heat

Question 12

Thermo- Gel does not break down like foam blankets. Following application, Thermo-Gel can be expected to remain in place from ____.

Answer 12

6 to 36 hours.

Question 13

Unlike foams that must be reapplied when the foam blanket drains off, the Thermo-Gel coating ____ and can be rehydrated with a ____.

Answer 13

dries in place / fine mist

Question 14

Thermo-Gel is ____. The product will not ____. When the threat of fire diminishes, the product can normally be hosed off with an ordinary garden hose.

Answer 14

non-toxic / harm paint or metal surfaces

Question 15

Thermo-Gel’s ability to coat and cling to vertical surfaces makes it ideally suited for _____.

Answer 15

exposure protection

Question 16

The product can be applied to all exterior structural surfaces including ______.

Answer 16

metal, glass, stucco, and wood

Question 17

Thermo-Gel may also be applied with success to ______.

Answer 17

compressed gas cylinders, motor vehicles or railroad tank cars.

Question 18

Thermo-Gel can also be applied to vegetation surrounding a structure in order to _____.

Answer 18

increase the defensible space.

Question 19

Direct fire attack should ____ be made with Thermo-Gel.

Answer 19

not

Question 20

Thermo-Gel is an expensive additive and does not provide the ____ characteristics normally associated with fire department hose streams.

Answer 20

reach and handling

Question 21

Companies shall carry one case of _____ containers of Thermo-Gel on the apparatus.

Answer 21

four one-gallon

Question 22

When the probability of brush fires increases (i.e., extreme or red flag rating) companies shall carry____ cases of Thermo-Gel on the apparatus (bringing the total product carried to three cases or ______).

Answer 22

two additional / twelve 1-Gallon containers

Question 23

NP

Answer 23

75 PSI

Question 24

FL for eductor

Answer 24

60 PSI

Question 25

FL for 1”

Answer 25

10 PSI per 100’ of 1” hose

Question 26

Coat the object until white (coating should be applied to a ____)

Answer 26

¼” thickness

Question 27

The one-gallon container will cover approximately_____.

Answer 27

500-700 square feet

Question 28

Cleaning of the appliance should not be delayed more than ____ because of Thermo-Gel’s tendency to gel in the appliance.

Answer 28

12 hours

Question 29

the manufacturer indicates the application of water to pre-soften the dried out product followed by ___ to remove the product.

Answer 29

pressure washing

Question 30

The LAFD has had some success removing partially dried gel from a surface with a stiff bristle brush and sweeping up the dry gel. This must be done within ____.

Answer 30

24 to 48 hours.

Question 31

Thermo-Gel Gel has the consistency of a thick latex paint and must be ___ to keep it from settling at the bottom of the container.

Answer 31

inverted and shaken

Question 32

There is _____ for this product

Answer 32

no stated shelf life

Question 33

Before use : Handshake vigorously for ____. ___ the container during the two-minute shaking period.

Answer 33

two minutes / Invert

Question 34

Weekly :

Answer 34

handshake containers on apparatus

Question 35

Monthly :

Exchange containers on apparatus with those in ___ at the fire station. This helps to rotate the stock for “_____.”

Answer 35

storage / shaking while driving

Question 36

Every 6 Months :

Shake each container (on apparatus and in storage) with the _____ for a period of _____.

Answer 36

Battalion issued shaker / five minutes

Question 37

Keep containers on their ___ while on the apparatus and in the fire station when possible.

Answer 37

side

Question 38

Do not get any water inside the Thermo-Gel container. ____ that has reacted with the gel has the potential to clog the metering valve.

Answer 38

One drop of water