At Polyco, we reimagine the use of resources to engineer longer lasting, high-performance products that power a circular economy. We continuously innovate to provide our paving partners with more consistency and reliability. We use our deep expertise to create products that give our customers a strategic advantage in the field. With sustainability at the core of everything we do, Polyco is positioned to meet the needs of the future by enabling customers to optimize their asphalt supply today.

Polyco has reengineered the way rubber modified asphalt is formulated. Only our patented Rapid Digestion Process (RDP) liquefies ingredients into a sustainable, homogeneous concentrate – upcycling waste rubber tires into a performance-enhancing additive.

Powered by RDP, SigmaBond is an innovative asphalt modifier that enables hot mix contractors to use more upcycled materials while extending the life of pavements.



Main Benefits of SigmaBond

SigmaBond makes roads safer with darker, smoother pavements, enhancing the contrast of pavement markings.

Cost Savings
Using SigmaBond for all rubberized asphalt blends allows contractors to blend liquid asphalt with the required feedstock. This removes the need for any specialty equipment that other methods of TR inclusion would require.

SigmaBond PG-TR is the only tire rubber modified hot mix that can incorporate RAP and RAS.

Engineered for any mix design. SigmaBond can be used in any application, and be emulsified with up to 10% rubber loading. Additionally, SigmaBond can be transported by rail or truck and mixed without specialized equipment.

Pavements are better protected with superior resistance to thermal cracking, UV oxidation and aging – improving road conditions.

SigmaBond enables faster production times and sustainable practices without compromising performance. Our formula reduces tire waste while extending the volume of existing PG grades and improving ΔTc.


We need to raise the bar as an industry — SigmaBond ensures that asphalt endures and performs.
Hotmix Producer


Our experts share their thoughts on asphalt sustainability, innovation, safety and creating a culture of care.

The Evolution of Waste Tire Rubber in the Greening of the Asphalt Industry

The greatest innovations often have the most humble beginnings. So is the story of the use of waste tire rubber in asphalt pavements. Charlie McDonald – dubbed the father of asphalt rubber – pioneered this concept more than 70 years ago.  McDonald’s camping trailer was leaking, and he needed a flexible material to effectively patch …

Good Binders Make RAP and RAS Better

As more DOT specifications call for increased percentages of recycled materials in asphalt hot mix, many still need to be convinced about the performance of pavements paved with RAP and/or RAS. Additionally, there’s confusion over the environmental and financial impact of using recycled materials. These are all valid concerns.  However, using RAP and RAS alone …