Applied Felts Custom CIPP Liners: Millions of Feet of Installation Success

Applied Felts’ custom-made CIPP classic felt liners are a time-tested solution  for  the rehabilitation of gravity sewer pipes. The company’s proven, decades-long history of extending the life of sewer pipes using rigorously tested Applied Felts CIPP felt liners has propelled the continued evolution of its cornerstone product.

Using the same process, Applied Felts reinforces hybrid liners with highly-engineered fiberglass to add significant strength for both internal and external load applications.

Using high-quality raw materials, the company’s AquaCure range of products offer flame- or stitch-bonded, highly durable polyurethane- and polypropylene-coated liners that can handle your toughest impregnation and installation requirements while providing great efficiencies in the field.


Applied Felts has taken its decades of experience in supporting successful CIPP applications in mainline pipelines to provide that same high-level quality in the manufacture of products for lining lateral and in-building vertical pipes specifically designed to accommodate multiple bends and diameter changes.

The company also offers a wide range of Duraflex liners to accommodate varying bends, lengths and diameter changes. These single-layer felt liners — with an array of polymer choices for your particular resin system — are best suited for on-site, vacuum impregnation in plumbing applications.

Available in 2- to 12-inch diameters for pipes with 3 to 4.5 mm wall thickness requirements, these heat-, UV LED- or ambient-cured liners are highly flexible and available in custom lengths.

The company’s PVC FlexLiner is a polyester fiber, flexible liner made with a styrenated resin-resistant PVC coating to accommodate the requirement for liners of varying thicknesses and up to 45-degree bends.

The SuperFlex polyurethane-coated fleece liner is used in pipes with up to 90-degree bends, and the WovoLiner features circular-knitted polyethylene fibers, uniquely bonded to a seamless, impermeable polyurethane coating. This extremely flexible liner is ideal for use on multiple bends up to 90 degrees with minimal wrinkling and a wide range of diameter transitions such as 4- to 6-inch.


Once pressurized inside of the liner, the flexible CalTube will press the liner tight against the host pipe during the curing process of single-access installations. Applied Felts’ single-layer, PVC-coated, polyethylene CalTubes are made in your choice of stitched, or the company’s innovative high-frequency seamed options. Color coded for your particular needs, the 2- to 12-inch diameter CalTubes can be used in inversion, pull-in and blind-shot installations.

The HF-Tube is an ultraflexible, light-duty polyethylene fabric with PVC coating and a high-frequency-welded overlap seam for use in open-end liner (blind-shot) and pull-in-place applications. 

The DuraTube is a flexible stitched CalTube designed to provide excellent resistance against tearing and higher temperature resistance for heat-cured installation for use in open-end liner and pull-in-place applications.

The LightTube is a flexible stitched or high-frequency-welded, clear CalTube designed to provide excellent resistance against tearing and higher temperature resistance for heat-cured and LED-cured installations. For use in open-end liner (blind-shot) and pull-in-place applications.


Applied Felts supports its customers through its stringent QA/QC, ISO-certified process that starts with the purchase of fine raw materials and continual testing throughout the manufacturing phase of every liner.

“Our most important support asset, however, is the on-site customer service and technical support we provide in the field,” says a company spokesperson. 

Applied Felts manufactures high-quality felt and fiberglass-reinforced CIPP liners for gravity sewer, pressure pipe and potable water applications.

276-656-1904 | |


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