(1) TB 93 - Thermo-Gel Fire Blocking Gel Flashcards
Thermo-Gel produces a bubble of water surrounded by a _______.
polymer shell
(Being filled with water instead of air, the bubble can absorb far more latent heat than compressed air foams.)
Thermo-Gel can be expected to remain in place from ____ to ____ hours.
6 to 36 hrs
(the Thermo-Gel coating dries in place and can be rehydrated with a fine mist.)
Is thermo-gel toxic?
No
Thermo-Gel’s ability to coat and cling to vertical surfaces makes it ideally suited for ________.
exposure protection.
(DIRECT fire attack SHOULD NOT be made with Thermo-Gel.)
When deciding whether or not to use Thermo-Gel, Company Commanders must consider:
-set up time
-application characteristics of Thermo-Gel
How many one gallon containers of Thermo-Gel shall companies carry on the apparatus?
4
When the probability of brush fires increases (i.e., extreme or red flag rating) companies shall carry 2 additional cases of Thermo-Gel on the apparatus bringing the total product carried to _______ 1-Gallon containers.
12
(Each case carries 4 thermo-gel containers)
The following equipment is provided to dispense Thermo- Gel from the one-gallon container:
- One-gallon container
- Spray tip
- Eductor
- Shut-off
- 1” to 1½ ” increaser
- Plastic pick-up tube with check valve and metering device
When applying Thermo-Gel:
-start with the roof and then the vertical surfaces
-Always operate from a ladder when coating roof areas. Do not walk on roofs that are coated with Thermo-Gel (slippery slime).
-Coat the object until white. Coating should be applied to a _____ inch thickness
1/4”
Thermo-Gel should only be dispensed from the one-gallon container.
Mixing Thermo- Gel in the apparatus water tank will result in a thick mixture that will _____ the pump.
clog
The one-gallon container of Thermo-Gel will cover approximately ____ to _____ square feet.
500-700
Cleaning of the Thermo-Gel appliance should not be delayed more than ____ hours because of Thermo-Gel’s tendency to gel in the appliance.
12 hours
(Soaking the parts in warm/hot water will assist in the cleaning.)
If Thermo-Gel dries out before the fire approaches, apply water in a ______ to rehydrate the product.
fine mist
Removal of Thermo-Gel from Exposures:
-Wash off with water
-If product dried out, apply water followed by pressure washing (potential damage to surfaces from pressure washing)
-Stiff bristle brush can be used on dried gel. (MUST be done WITHIN 24-48 hours)
Thermo-Gel has the consistency of a thick latex paint and must be inverted and shaken to keep it from settling at the bottom of the container.
Before use, handshake for ______ minutes.
2 mins
