Lynco Associates Concrete repair, Epoxy Injection, Water Reactive Polyurethane Grouts, Chemical Grouts, Integrated Concrete Sealers, Concrete Surface Preparation, Slab Jacking and Void Filling, Shot Crete, Topping and Underlayment Applications, Epoxy Coating And Joint Sealants. Underwater applications are also available using scuba equipped divers for underwater leak detection, evaluation and repair. LYNCO Associates, Inc. is a specialty contracting company in the business of concrete repair, restoration and treatments.