Ultrabond® Sport PU 1K Rubber Flooring Adhesive | IC (MAPEI-SPORT)

Ultrabond® Sport PU 1K | Premium Urethane Adhesive for Reground Rubber Sports Flooring

When maximum durability and moisture resistance are critical to your rubber flooring install, choose Ultrabond® Sport PU 1K—an advanced one-component, moisture-curing urethane adhesive built for professional-grade performance. This ready-to-use adhesive is specially formulated for interior and exterior installations of reground rubber flooring and underlayments in high-traffic athletic, educational, and commercial environments.

With its high initial tack, strong early green strength, and low VOC formulation, Ultrabond® Sport PU 1K makes installation faster, easier, and safer. It creates a secure, lasting bond that resists movement, maintains seam integrity without additional weights, and offers superior moisture and temperature tolerance. Whether you're upgrading a commercial fitness center, school gym, or multi-purpose athletic facility, this adhesive provides unmatched performance and peace of mind. IRON COMPANY proudly offers this top-tier product with the reliability and expertise trusted by contractors, GSA buyers, and facility managers for over 26 years.

Secure your rubber floors with a solution that’s built to last. Order Ultrabond® Sport PU 1K online now or contact one of our adhesive specialists to make sure you have the right product for your install.

Features:

• One-component, moisture-curing urethane adhesive.
• Designed for interior and exterior reground rubber flooring.
• Strong early tack and green strength for faster installations.
• Eliminates need for extra weighting during seam bonding.
• Low VOC content < 40 g/L – meets Rule 1168.
• High moisture tolerance (up to 15 lbs. MVER / 95% RH).
• Ready to use – no mixing required.
• Compatible with radiant heat, plywood, concrete, terrazzo, tile, and more.
• Adheres to rubber underlayments, recycled rubber, and dense substrates.
• Smooth paste consistency and dark gray color.
• Long working and adjustability time for precision installations.

Specifications

• Adhesive Type: One-component moisture-curing urethane
• VOC Content: < 40 g/L (SCAQMD Rule 1168 compliant)
• Solids Content: 100%
• Color: Dark Gray
• Working Time: 20–30 minutes
• Adjustability Time: 30–45 minutes
• Flash Time: 0–10 minutes
• Traffic Ready: Light foot traffic in 12 hours, heavy traffic in 24 hours
• Shelf Life: 1 year (unopened at 73°F)
• Storage Temperature: 65°F to 80°F
• Packaging: Sold individually in 4-gallon metal pails
• Application Temp Range: 50°F to 90°F
• Approximate Coverage:

  • 1/16” Sq. Notch: 90–120 sq. ft./gal

  • 1/8” U-Notch: 50–60 sq. ft./gal

Shipping NOT Included - Will be calculated at checkout.

• Shipping Cost: Shopping cart will calculate shipping cost automatically at checkout.
• Parcel: Smaller orders will ship via UPS ground.
• Freight: Freight deliveries are considered "curbside" only and will be delivered on a wooden pallet to a location at your address suitable for a tractor trailer at the drivers discretion. Your delivery will include a 24-hour notification to schedule delivery for the next business day and lift gate service only. There will be an upcharge for any additional delivery services (i.e. inside delivery). Customers are required to be available at the time of delivery to inspect the shipment, make note of any freight damage or shortages, and sign the delivery receipt including notes of any damage or shortages.
• International Orders: Shipping cost to your location outside the lower 48-states will NOT be calculated at checkout and will be emailed for approval after the order is placed. 
• Shipping Dims/Weight:
  Box 1: 13” x 12” x 12” x 58 lbs.