1 When using hand or power tool cleaning, the surface should be free of cement residue and loose fixtures. 2 When using sand or shot blasting, should make the primary surface to form a uniform rough surface. 3 When sanding and grinding machinery, should be clean and smooth. When the official painting, you must use a clean soft brush, compressed air or industrial vacuum cleaner to clean the surface of the grass-roots level. 3.1.9 has been the primary surface oil, chemical contamination or alteration, expansion projects have been eroded loose grass roots, should be surface pretreatment Henan Epoxy Which treatment method should meet the following requirements: 1. When the grass roots medium surface erosion was loose like Jincheng Epoxy Which is good, and there is a difference in height shall be used chiseling mechanical treatment or sandblasting. 2 When the substrate surface is loose like media, should be sandblasted. 3 is corrosive erosion of loose grass roots must be chiseled clean of concrete without using potentially dangerous chemicals to neutralize the corresponding washed repeatedly with water reuse. 4 is washing grease, surface chemical contamination, use detergents, solvents, etc. lye, can also be broiled steam purging methods such as treatment, but not damage the grass roots. 5 uneven and defective parts, can be fine stone concrete or polymer cement mortar to repair, according to the new primary processing after curing. Old paint and oil ground headache, not completely handle, quality is certainly a problem, properly handle Epoxy Which is good, the price is too big, you do not know what cost-effective way? For now I experience, the oil surface, treatment no more than the following: A, milling machine milling completely removed, oil can still be considered thin, heavy oil to be milled down very thick layer of cutters can not afford fees, customers better to regenerate the casting surface. B, partial burning oil using guns, there is a certain effect. C, the use of thinner to clean, this method is not effective, the surface can be washed Hebi Epoxy Which is good, the inner layer can not be removed, oil or to pan up. D, pickling, should effectively, have clean water after washing, and then they take longer to dry naturally, affect the duration. Old paint on the ground is relatively good deal, A, a thin layer of old paint can be some of the diamond cutting machine equipment supplied removal; B, the thicker the old coating is available in addition to the ground milling machine milling. C, such as the replacement of the old paint adhesion to the substrate than the prison, only partial destruction, in consultation with the local owners can handle. Which is good Jincheng Epoxy | Xiaojuan electrical materials (certified) | Epoxy Which is better provided by the Walker County town Kang Xiaojuan electrical materials shops. Walker County town Kang Xiaojuan electrical materials shops (www.hngtdp.com) Henan Xinxiang, a leader in the construction, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Xiaojuan electrical materials in leadership with the staff warmly welcome all inquiries negotiations to create a better future Xiaojuan electrical materials.