Heavy duty kraft paper lives up to its name, offering enhanced thickness and density for demanding applications needing extra toughness. Through careful production controls, heavy duty kraft achieves exceptional traits beyond regular kraft.

Manufacturing starts with using the strongest long fiber wood pulps, then refining them to maximize fiber bonding strength. Wet pressing removes excess water to increase density. Drying tension augments stiffness and tear resistance. The result is thick, dense sheets with high bulk, tear resistance, and burst strength.

Heavy duty kraft excels in heavy-duty packaging and wrapping where regular kraft easily fails. The dense paper prevents tearing from container edges and resists punctures from shifting loads. It provides rigid wrapping support and containment for heavy items during transport or storage.

Additional industrial uses include sediment filters in food production, scrubbing pads, industrial wipes, and backing for abrasive discs. The sturdy paper withstands rubbing, scouring, and exposure to oils or grease. It replaces light papers unfit for heavy wear and cleaning uses.

With careful sourcing and production controls, pulp can be transformed into a remarkably robust kraft paper. Heavy duty kraft judiciously levers papermaking techniques to achieve strength and durability similar to light cardboard, at a fraction of the cost. It brings the advantages of kraft to demanding applications.