Chemguard 2% High Expansion Foam

Chemguard XTRA High Expansion Foam Concentrate is a synthetic based foaming agent suitable for use with either low, medium or high expansion foam generating equipment. It is generally proportioned at a 2% concentration (2 parts XTRA to 98 parts of water).

When used through a high expansion or medium expansion generating discharge device the following extinguishing mechanism takes place:

• The large volume of foam engulfs the area being protected and prevents air from reaching the fire.
• As the foam is generated with water, and comes in contact with the fire, a large amount of steam is generated which helps reduce the oxygen content in the atmosphere.
• The water content in the foam produces a valuable cooling effect on the fire. This is particularly so with medium expansion generated foam, which has higher water content.

Features:

• Excellent wetting characteristics when used in combating Class A fuel type fires
• If inadvertently frozen, thawing will render the product completely serviceable again
• Can be used with foam compatible dry chemical agents
• Suitable with high/medium foam generators

Proportioning:

• Fixed or portable in-line eductors
• In-line balanced pressure and pump pressure proportioning skid
• Bladder tank balanced pressure proportioning system

Foam Properties:
When Chemguard XTRA High is mixed with water in the correct proportion, expansion ratios of up to 1,000 to 1 can be achieved. This expansion ratio is dependent on the type of discharge device and pressure of the system when operating.

Typical Properties at 77 degrees F (25 degrees C)

Appearance	Colorless Liquid
Specific Gravity	1.002 g/ml
pH	7.5
Viscosity	7 cps

Environmental Impact:
Chemguard XTRA High is biodegradable, low in toxicity, and can be treated in sewage plants. Please refer further to Chemguard Technical Bulletin regarding foam products and the environment.

Storage:
If kept in the original unopened and airtight Chemguard supplied container and stored within the temperature range of 35 degrees F - 120 degrees F (2 degrees C - 49 degrees C), a shelf life of between 20 - 25 years can be expected. When stored in other than the original supplied container, check with Chemguard for storage guidelines.