Coating knowledge: coating knowledge: characteristics of single layer waterproof materials

Core tip: underground engineering waterproofing belongs to concealed engineering, so it is not easy to find its hidden dangers, so it needs to be highly valued In the past few years, the reduction of the amount of laminated waterproofing system has strengthened the single-layer waterproof roll The single-layer materials used for underground waterproofing can be divided into two categories: elastomer and thermoplastic materials Thermoplastic materials have three different components: PVC, CPE and CSPE The most prominent single-layer waterproof materials are butyl rubber and PVC roll specially prepared The following is a detailed introduction Butyl rubber is a kind of synthetic rubber called polyisobutylene, which is most suitable for underground and Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Paint Home News: underground waterproofing is a hidden project, not easy to find its hidden dangers, so we need to attach great importance to it In the past few years, the reduction of the amount of laminated waterproofing system has strengthened the single-layer waterproof roll The single-layer materials used for underground waterproofing can be divided into two categories: elastomer and thermoplastic materials Thermoplastic materials have three different components: PVC, CPE and CSPE The most prominent single-layer waterproof materials are butyl rubber and PVC roll specially prepared The following is a detailed introduction Butyl rubber is a kind of synthetic rubber called polyisobutylene, which is most suitable for underground and concealed waterproof engineering As a waterproof material, butyl rubber is superior to other synthetic rubber because it has only 1% - 2% water absorption The water absorption of EPDM is 4% In addition, butyl rubber has excellent air tightness, only 0.025perm, while EPDM is 0.05perm In addition to UV resistance in other properties The two materials are roughly the same Although EPDM has better UV resistance But this performance is not needed in underground waterproof engineering Butyl rubber has good anti bacteria, mold and soil compounds, which are often encountered in underground waterproof engineering The thickness of butyl rubber roll used in underground and concealed waterproof works is 1.5-3.0mm Butyl rubber is suitable for all three waterproof situations: the plate placed on the structure, the plate placed on the ground and the foundation wall The construction method is mainly full adhesion However, the loose laying method can also be used for the plates placed on the structure and the plates placed on the ground During the construction on the concrete base, the surface shall be flat and smooth When working on a horizontal surface, the roll shall be laid to relax before it is applied to the base course coated with the manufacturer's approved binder The binder shall meet the latest technical requirements of the manufacturer All joints shall be covered with 1.5mm thick seam tape When the butyl rubber coiled material is constructed on the plate on the ground, the loose laying method can be used Firstly, the coiled material shall be opened to relax, and then the joint belt shall be added at the joint Protective board shall be laid on the coil to prevent the coil from being punctured The protective plate used shall be approved by the manufacturer When the butyl rubber roll is used on the vertical surface, the full adhesion method shall be used for construction The thickness of PVC roll used for underground and concealed waterproofing works is between 1.5 and 3.0mm The thickness (1.1-1.5mm) and chemical composition of PVC roll are different from those of roof PVC roll for roof is added with plasticizer as stabilizer of UV Underground waterproofing is not added However, fillers were added to improve the properties of anti mold, alkali and other soil compounds Compared with other thermoplastic materials, PVC has obvious advantages in waterproofing Its permeability and water absorption are the lowest of all thermoplastic materials The water absorption is only 2%, while chlorosulfonated polyethylene and other thermoplastic materials are much higher PVC roll is usually reinforced with non-woven glass fiber fabric The tensile strength and puncture resistance of the coil are greatly improved Another major advantage is that the strength of the hot weld can be equivalent to the strength of the material itself Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,