Patching and repairing compounds fill small cracks and holes to smooth over imperfections or to quickly repair a damaged surface and stop leaks. Repair putties can be pushed and formed into holes and around pipe for a quick watertight seal. Wall repair patching smooths a wall surface in preparation for painting. Wood fillers and hardeners disguise imperfections, repair damage, or restore and protect wood surfaces. Surface repair patches and fillers patch damaged surfaces and fill cavities to anchor parts.