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Water Absorption Testing

This process, also called the Cobb Test, measures the quantity of water that is absorbed in a given time.  It is a practical means of determining the liquid absorptiveness or resilience of treated and untreated papers, boards, fabrics and other materials.

Corrugated materials will lose their strength, shape, and function when they’ve absorbed too much liquid. This test helps determine at what level the moisture needs to remain below for the corrugated board and other materials in your packaging to maintain their strength and ability to protect your product.


Equipment used for Water Absorption Testing:

Cobb Method Testing Apparatus 
by Gurley Precision Instruments.