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Spray foam insulation or spray polyurethane foam (SPF) is an alternative to traditional building insulation such as fiberglass. A two-component mixture composed of isocyanate and polyol resin comes together at the tip of a gun, and forms an expanding foam that is sprayed onto roof tiles, concrete slabs, into wall cavities, or through holes ...
A deluge gun can discharge 7,500 litres (2,000 US gal) per minute or more. A master stream is a fire service term for a water stream of 1,250 litres (330 US gal) per minute or greater. It is delivered by a master stream device, such as a deck gun, deluge gun, or fire monitor.
This would produce flow rates from a typical 1-3/4" inch hose of 120 US gal (450 L) per minute of foam solution and 60 cu ft (1.7 m 3) per minute of compressed air. This air to foam solution ratio produces a wet, quick draining finished foam that will quickly knockdown flame and reduce fire compartment temperature.
Polar vortex headed for US will bring ‘exceptionally cold’ temps in the new year: ‘Weather models are screaming’
The Dow Jones Industrial Average jumped 498 points, or 1.2%, and the Nasdaq composite gained 1%. Superstar stock Nvidia and other Big Tech companies led the market, which got a lift after a report ...
Demi Moore snagged her first major industry award Sunday night at the Golden Globes – and her touching, tear-jerking speech was all substance. "I really wasn't expecting that," Moore, 62, told ...
If the foam weapon is to be an axe, a head carved out of open-cell foam may be affixed. Additional layers of closed-cell foam can be used to define a blade of a sword, the hilt of a dagger, or the soft foam "spikes" of a club. Foam weatherstripping is commonly used to better define a "cutting blade" as opposed to electrical tape.
President-elect Donald Trump complained on Friday that American flags would still be lowered to half-staff in honor of the late President Jimmy Carter during Trump's Jan. 20 inauguration.