Signum Pro · Polyester
Signum Pro Poly Plasma
Round co-polyester monofilament with added resin
Performance ratings
Overview
Signum Pro Poly Plasma is the flagship co-poly from the German manufacturer, voted String of the Year 2004 by Tennis Magazin Germany and 2005 by Stringforum.net readers. One of the first colored co-polyester strings available, Poly Plasma is known for exceptional tension maintenance - one of the best in its class. The added resin creates predictable, controlled response that inspires confidence on full swings without feeling overly stiff or anemic outside the sweetspot.
Best for
- Players frustrated by tension loss
- Control-oriented baseliners
- Players seeking consistent response over time
- All-court players wanting reliability
Not ideal for
- Maximum power seekers
- Beginners needing forgiveness
- Players wanting soft, plush feel
Pros
- Exceptional tension maintenance - best in class
- Voted String of the Year 2004/2005
- Predictable, controlled response
- Good spin and durability
- Outstanding value from Germany
- Used by ATP tour players
Cons
- Not the most powerful
- Round profile limits maximum spin
- Requires proper technique
Stringer notes
Added resin - strings smoothly. Available in distinctive Pearl-Orange color. Exceptional tension stability.
Break-in period
1-2 hours for optimal feel.
When to replace
Every 20-25 hours thanks to tension maintenance.
Hybrid setup ideas
- Natural gut mains with Poly Plasma crosses
- Wilson NXT crosses for comfort
Used by
Mikhail Youzhny (former), Sergiy Stakhovsky, Various ATP players
Specifications
- Type
- Polyester
- Construction
- Round co-polyester monofilament with added resin
- Gauges
- 16, 16L, 17L
- Colors
- Pearl-Orange, Black, Natural
- Set price
- $8–$11
- Reel price
- $80–$100
- Brand
- Signum Pro (Germany)
Sources & reviews
Data verified January 2025. Something wrong? Send a correction.
- Specs: Signum Pro Official
- Pricing: Tennis Warehouse
- Review: Tennis Warehouse Review