MAPEI Ultrabond® Sport PU 1K Rubber Flooring Adhesive — sold by Pro Sports Floors on rubberflooringrolls.com.

Install your rubber sports flooring with confidence. MAPEI Ultrabond Sport PU 1K is a fast-setting, moisture-curing urethane adhesive formulated for bonding recycled-rubber flooring in indoor and outdoor applications.

Its strong initial tack and early bond strength help hold flooring in place and keep seams tight during installation. The single-component formula eliminates the need to combine separate adhesive components, simplifying installation for gym and sports flooring projects.

Product Features

• Designed for recycled rubber: Specifically formulated for reground-rubber sports flooring.
• Fast-setting performance: Develops early holding strength to help maintain tight seams.
• Single-component formula: No two-part mixing required.
• Indoor and outdoor use: Suitable for interior and exterior applications.
• Sports flooring applications: A practical choice for compatible rubber flooring in weight rooms, fitness centers, and athletic training spaces.
• East Coast freight: Ships from North Carolina origin ZIP 27041 when freight tags apply — helpful for gyms and facilities across the East Coast.

Follow MAPEI’s current technical data sheet and your flooring manufacturer’s instructions for substrate preparation, compatibility, trowel selection, coverage, and curing requirements.

Pair with Pro Sports Floors rubber: Use with rolls like Tread Lite 1/4", Brute 5/16", and Dynamic 3/8", or browse the Rolled Rubber and Adhesives collections on rubberflooringrolls.com.

Related guides

• How to Install Rolled Rubber Flooring: Cutting, Seams & Glue-Down Guide - subfloor prep, dry-fit, and the full glue-down sequence this adhesive is made for
• How Much Does Rubber Gym Flooring Cost? Price Per Square Foot Guide - how adhesive, waste, and freight add to the per-square-foot cost of a glue-down install
• Best Flooring for a CrossFit Gym: Rubber Rolls, Tiles & Drop Zones - why the open-floor rolls in a CrossFit box get a full urethane glue-down while drop-zone tiles stay loose
• Loose Lay vs Glue-Down Rubber Gym Flooring - this adhesive is for glue-down rubber installs; decide if glue-down fits your project
• Best Rubber Gym Flooring for East Coast Gyms (NC, SC, VA, GA & TN) - many of our NC-origin rolls ship from ZIP 27041 for East Coast freight
• Rubber Flooring for Garage Gym: Concrete, Thickness & Layout Tips - gluing rolls on a garage slab? Prep oil and moisture first
• How Much Rubber Flooring Do I Need? - plan roll or tile quantities and adhesive together
• Rubber Flooring vs Foam Mats for Home Gyms: Which Lasts? - durability and impact protection of a glued-down rubber floor vs foam
• Does Rubber Gym Flooring Smell? How to Get Rid of Rubber Odor - glue-down installs and new rubber both need airflow; odor causes and fixes