Synthetic Grass Warehouse U283C1G 1 gal SuperSeam 283C Glue Adhesive. SuperSeam 283C Adhesive is a single component urethane adhesive. It is the professional’s choice of synthetic turf glue adhesive. Its adhesion strength surpasses competitor alternatives. SuperSeam 283C Adhesive has excellent shear and elongation properties, along with its ability to withstand harshest weather conditions with great longevity. SuperSeam 283C Adhesive can be used indoors or outdoors with proper ventilation. SuperSeam 283C Adhesive has many uses in the synthetic turf industry including “glue down” on exterior surfaces as in wood, concrete, pavers or clean asphalt.