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Nets & monofilament

— APPLICATION

HDPE monofilament and tape grades for nets

An HDPE monofilament grade has to draw evenly on the line and then keep its strength for years outdoors. Monofilament and stretched tape become knotted nets, knitted shade and hail nets, round bale nets and produce nets. Each is made of single strands that sit in the open. This page explains how molar-mass distribution, flow and UV protection steer the choice of grade, and shows the grades we can supply.

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Bundle of white knotted netting and folded knitted shade net beside a small teal spool of monofilament

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— REQUIREMENTS

What a net has to do

A net usually fails at the knot or the loop, where the strand bends sharply. Monofilament for knotted nets and ropes needs high tensile strength and enough elongation to tie and set a knot. Knitted shade and windbreak nets need strands that run on a warp-knitting machine without breaks. Round bale nets are stretched around the bale in the field and must not snap. Then there is sunlight. UV breaks down unprotected polyethylene and polypropylene, so a net without UV stabiliser loses strength long before its planned life ends.

— SELECTION

HDPE for nets, or PP monofilament

HDPE is the usual polymer for nets. Grades with a medium molar mass and a narrow molar-mass distribution draw evenly on monofilament and tape lines and give high tensile strength with good elongation. Easy-flowing grades with a lubricant run steadily on monofilament lines. For high-tenacity monofilament, look for a grade whose data sheet says so.

Tape grades suit round bale nets and tubular produce nets. Monofilament grades suit knotted nets, ropes and twine.

PP monofilament is stiffer and softens at a higher temperature. Low-flow PP homopolymers made for tape, often with a low water-carry-over package, also run as monofilament.

Check the data sheet for a UV stabiliser. If there is none, add a UV masterbatch matched to the climate and the planned years outdoors. Carbon black and some pigments also change UV life. Ropes and yarn for geotextiles are covered on fibres and filament yarn, tape for woven fabric on raffia, tapes and strapping.

— PROCESSING

Monofilament and tape lines

Monofilament is extruded through a multi-hole die, quenched in water, stretched in hot ovens or on godets, and wound. Tape for bale and produce nets is slit from blown or flat film, then stretched. Tell us your line type, filament diameter or tape denier and the end use, and we will match grades by flow and molar-mass distribution.

Extrusion

Blown film extrusion

— DOCUMENTATION

Produce nets and outdoor use

Nets that pack fruit and vegetables touch food. The net maker issues a declaration of compliance under Regulation (EU) No 10/2011, supported by the producer's declaration for the grade, which we pass on. As packaging, produce nets also fall under the Packaging and Packaging Waste Regulation (EU) 2025/40, which has applied since 12 August 2026. For agricultural and building netting, agree outdoor exposure tests with your UV masterbatch supplier before you promise a service life.

— FAQ

Common questions

Do I need a UV masterbatch for outdoor nets?

HDPE or PP monofilament?

Can one grade run tape and monofilament?