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Slab stock is still one of the most important forms of urethane end-product in use today.
Basically, the foam machines that produce such stock consist of two or more pumping units, a variable mixer, a nozzle carriage assembly, and, in many cases, a conveyor belt to transport and contain the liquid during the reaction process and until it solidifies into foam.
The ingredients are fed from tanks through a hose and into the mixer at a predetermined rate.
The mixing head moves back and forth slowly across the width of the receptacle.
It only takes a few minutes for the foaming action to be completed and after a short cure, the material can be cut into lengths as desired.
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