Signum Pro Poly-Plasma Tennis String

Price range: $14.99 through $149.99 CAD

The legend of tension stability. Signum Pro Poly Plasma is a multi-award-winning co-poly that redefined what a polyester string could be. Known for its iconic vibrant orange color and industry-leading tension maintenance, it provides a crisp, controlled response that doesn’t “bag out” over time. If you are a big hitter who wants a reliable, round string that feels the same on day ten as it did on day one, Poly Plasma is the gold standard.

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Description

Key Features

  • High Elastic Co-Polyester Construction: Produced using a patented high-tech heating and cooling process that creates a unique molecular cross-linking for a remarkably consistent response.

  • Balanced Power and Control: Offers a “controlled power” profile, allowing aggressive hitters to swing out fully while the string provides a predictable, low-powered trajectory.

  • Crisp, Comfortable Feel for a Poly String: Despite its firm nature, it filters out high-frequency vibrations, offering a smooth, clean “snap” at impact that is surprisingly arm-friendly.

  • Good Durability and Tension Stability: Renowned as the industry benchmark for tension maintenance; it suffers virtually zero initial tension loss, staying in the “playable zone” for weeks rather than hours.

  • Round Profile for Consistent Playability: The smooth, slick surface promotes excellent string-on-string sliding (snap-back) for consistent spin and a highly predictable launch angle.

  • Available in Multiple Gauges: 1.18mm for maximum feel, power, and spin potential. 1.23mm for the “all-rounder” balance of durability and playability. 1.28 & 1.33mm for maximum control and durability for chronic string-breakers.

Best For

Intermediate to advanced players seeking a powerful, all-purpose polyester string that offers world-class tension stability and a surgical, “connected” feel.

Additional information

Length

12m, 100m, 200m

Gauge

1.18mm, 1.23mm, 1.28mm, 1.33mm

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