Gyproc pro, Top is a polymer, Based ready, To, Work air, Drying product designed for each step of jointing & finishing and conforms to astm c476/c475m gyproc pro, Top ready, Mix is an air, Drying prepared for instant use jointing compound for plasterboard finishing at vertical & horizontal joints. This product is also utilized for filling the uneven gaps, Small cut, Outs and finishing of the internal and external corner joints. Weight 30 kg, 20 kg & 5 kg pailprocess of jointing & finishingfirst coatusing an applicator / trowel, Fill the recess formed by the perimeters of the sheets with gyproc pro, Top . Centre the paper tape along the joint and using a taping knife / trowel press the tape down into the gyproc pro, Top ensuring no air bubble remain behind the tape. Immediately apply a thin coat of gyproc pro, Top over the top layer of the tape 100, 150 mm wide . Allow it to dry second coatapply a second coat of gyproc pro, Top with an applicator / trowel. Ensure that this coat extends outside the section of the first coat 200, 250 mm wide . Allow to thoroughly dry and scrape back any build, Up of compound along the joint. Third coatapply a finishing coat of gyproc pro, Top with an applicator / trowel. Joint edges should be feathered at least 50 mm beyond the edges of the previous coat. Allow to dry. Lightly sand in the same direction as the joint using finer sandpaper.