CourtFlex Crack Sealant Acrylic Crack Patch is a 100% acrylic trowel grade tennis court crack filler designed for filling cracks in asphalt or concrete surfaces. Ideal for tennis court repair and filling of cracks on athletic surfaces. Listing Back To Top Design Visualizer Previous Next Downloads Product Info About Education Media Specs Specs Add to Project+ Favorite User Feedback Company Resources Back to top Videos Videos Brochures ColorPlus System ProCushion System SkateMaster Trackmaster Plus Sport Surfaces Color Chip Guide Specifications