When it comes to polyaspartic topcoats, installers are often choosing between speed, clarity, and ease of use. PolyStar PRO ST is built to deliver all three at once, making it one of the most versatile topcoats in the U.S. Resin Supply lineup for flake systems and decorative flooring projects.
What Makes PolyStar PRO ST Stand Out
PolyStar PRO ST is a high-solids polyaspartic coating with a 93% solids content and a precise 2:1 mix ratio. As a transparent, high-performance topcoat, it's engineered specifically for superior toughness, giving installers a coating that holds up to heavy use without sacrificing appearance.
One of its biggest advantages is high build. Because the formulation is so solids-rich, it delivers strong coverage with fewer coats, which can save significant time and material on larger projects. It also produces a smooth, satin finish with excellent flow, so the final result looks consistent and clean across the whole floor.
PolyStar PRO ST cures fast. It reaches a tack-free state in approximately 110 minutes under recommended conditions, and the entire system can move through multiple coats in a single day. That kind of turnaround is a major advantage for installers working on tight schedules, especially in commercial settings where downtime needs to be minimized.
It's worth noting that "working time" here is short and precise rather than extended: installers get a working window of about 20-25 minutes once mixed, with a pot life of 10-15 minutes. This is faster curing than many comparable coatings, which rewards efficient, well-prepared application but means installers should be ready to move once it's mixed.
Key Benefits
- 93% solids for a high-build finish
- Smooth satin finish with excellent flow and clarity
- Aliphatic formulation for UV stability – won't yellow over time
- Excellent elongation and abrasion resistance
- Multi-coat application achievable in a single day
- Seamless, impermeable, and mold-resistant
- Potential for LEED eligibility
- VOC compliant and food safety compliant (USDA, CFIA, FDA)
Where PolyStar PRO ST Excels
This topcoat is especially popular as the finishing layer over flake systems and pigmented coatings, but its durability and clarity make it suitable for a wide range of environments:
- Residential and commercial floors
- Garage floors
- Commercial centers and showrooms
- Healthcare facilities
- Food and beverage industries
- Schools and warehouses
- Heavy manufacturing and aerospace facilities
- Public transit facilities and pharmaceutical spaces
Because it's rated for both interior and exterior use, PolyStar PRO ST is a strong choice anywhere foot traffic and wear are a concern, from a showroom floor to a busy warehouse aisle.
Designed to Work as a System
Like the rest of the PolyStar line, PRO ST integrates easily with U.S. Resin Supply's decorative elements, including chips, quartz, and aggregates. It's also compatible with the broader product family, including the AquaStop MVB Series, Epoxy Oil Prime, and EpoxyStarz Series, making it easy to build a complete flooring system from substrate to topcoat.
The Bottom Line
For installers looking for a topcoat that combines high build, fast cure, and a clean, durable finish, PolyStar PRO ST delivers a dependable option for flake systems and decorative floors alike. Its quick turnaround and tough, UV-stable finish make it a strong fit for both residential jobs and high-traffic commercial spaces.
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