
In street sweeping, performance comes down to three things: productivity, uptime, and results. Most people point to the broom, the core, the construction, the fit. But the real performance driver isn’t the broom. It’s the bristle.
At Keystone, we’ve built our reputation on that belief for over 80 years, engineering bristle that sets the industry standard for street sweeping performance.
The Part of the Broom That Does the Work
Every pass a sweeper makes depends on how effectively the bristle engages with the surface, lifts debris, and resets for the next rotation. That action, what we call “flicking”, is what actually moves material off the road. If the bristle doesn’t perform, the broom doesn’t perform.
Why Bristle Quality Matters
Not all bristle is created equal. The difference comes down to three key factors:

Wear & Durability
High-quality bristle maintains its structure longer under constant abrasion from pavement, debris, and varying conditions. That means longer broom life, fewer changeovers, and more uptime in the field.

Flicking Action
Effective sweeping depends on how the bristle flexes and recovers. The right bristle flexes to engage debris , snaps back quickly to maintain sweeping force, and delivers consistent performance throughout the life of the broom. This is what enables true sweeping production and gets the job done faster and more efficiently.

Consistent Performance Over Time
Lower-quality bristle breaks down, loses stiffness, and stops performing long before it’s worn out. High-performance bristle is engineered to hold its shape, maintain its memory, and deliver consistent results from the first pass to the last.
What Makes the Difference: How We Make It
Many brush manufacturers source their bristle from third-party providers. We extrude ours. When you control the extrusion process, you control the material formulation, the diameter consistency, and the physical properties that determine real-world performance.
We control every aspect of the process from raw material selection through extrusion, so we can dial in the exact characteristics needed for sweeping performance. That includes:
- Custom formulation for strength and flexibility
- Engineered shape to optimize surface contact
- Precision crimping to enhance flicking action and recovery
Built for the Real World
Street sweeping isn’t done in controlled conditions. It’s done on rough roads, through heavy debris, in all kinds of environments. That’s why bristle performance is about more than the specs, it’s about real-world results:
- More productive sweeping
- Reduced downtime
- Lower overall cost per job
For OEM equipment builders, bristle performance directly impacts equipment reputation. For contractors, it comes down to productivity and cost. Every changeover takes equipment off the street. Every extra pass adds time and fuel. Bristle that lasts longer and performs better on every pass is bristle that pays for itself.

