Coating standard: PVC elastic waterproof coating standard

Core tip:: 1 Scope This standard specifies the classification, technical requirements, test methods, inspection rules, marks, packaging, transportation and storage of PVC elastic waterproof coating (hereinafter referred to as PVC waterproof coating) This standard is applicable to thermoplastic and hot-melt PVC elastic waterproof coating prepared with PVC as base material, modified materials and other additives 2 reference standards The following standards contain provisions which are incorporated by reference into this standard At the time of publication, the editions indicated are all valid All standards will Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and This standard specifies the classification, technical requirements, test methods, inspection rules, marks, packaging, transportation and storage of PVC elastic waterproof coating (hereinafter referred to as PVC waterproof coating) This standard is applicable to thermoplastic and hot-melt PVC elastic waterproof coating prepared with PVC as base material, modified materials and other additives 2 The provisions contained in the following standards of the cited standards are the provisions of this standard by reference in this standard At the time of publication, the editions indicated are all valid All standards will be revised, and parties using this standard shall explore the possibility of using the latest version of the following standards GB 3186-82 sampling of coating products GB / T 13477-92 test methods for building sealing materials JC / T 408-91 waterborne asphalt based waterproof coating JC / T 500-92 polyurethane waterproof coating 3 Classification 3.1 PVC waterproof coating can be divided into two types according to the construction method: thermoplastic (J type) and hot-melt (G type) 3.2 PVC waterproof coating is divided into 801 and 802 models according to the heat-resistant and low-temperature performance "80" stands for heat resistance temperature of 80 ℃, "1" and "2" stands for low temperature flexibility temperature of "- 10 ℃" and "- 20 ℃" respectively 3.3 product marking 3.3.1 marking method products shall be marked in the following order: name, type, model and standard number 3.3.2 marking example standard number model type PVC elastic waterproof coating 4 technical requirements 4.1 appearance 4.1.1 J type waterproof coating shall be black uniform viscous substance, free of caking and impurities 4.1.2 G-type waterproof coating shall be black block, free of coke slag and other sundries, and free of flowing phenomenon 4.2 physical and mechanical properties 5 test methods 5.1 standard test conditions of laboratory conditions are 20 ℃± 2 ℃, relative humidity 45% ~ 60% 5.2 specimen preparation 5.2.1 specimen: the specimen shall be prepared after plasticization or melting When the J-type sample is plasticized, it is stirred and heated at the same time When the temperature reaches 135 ℃± 5 ℃, it is kept for 5min When the temperature is reduced to 120 ℃± 5 ℃, the mold is injected; when the heating temperature of the G-shaped sample is 120 ℃± 5 ℃, the mold is injected immediately after the melting is uniform Note: when the room temperature is low in winter, the glass base plate coated with the insulating agent can be placed in an oven at about 60 ℃ for preheating for 30min before the mold is injected while it is hot 5.2.2 heat resistance test piece: the base plate is made of 130mm × 80mm × 2mm aluminum plate, and the metal mold frame with the internal dimension of 100mm × 50mm × 3mm is placed in the middle, and three pieces are prepared at the same time 5.2.3 low temperature flexible test piece: the bottom plate is made of glazed brick coated with glycerol talcum powder (ratio: 1:3-1:4) isolating agent, and the internal dimension of metal mold frame is 80mm × 25mm × 3mm Three of them were prepared at the same time 5.2.4 test piece of fracture elongation and recovery rate without treatment, heating treatment, ultraviolet treatment and alkali treatment: it shall be cast in pieces, each piece size shall not be less than 180mm × 120mm × 3mm Center the mold frame on the glass base plate coated with insulating agent and fix it with transparent tape After the removal of the formwork, the demoulded test piece shall be placed on the cork board sprinkled with talcum powder According to the provisions of Appendix A of JC / T 500 on dumbbell pieces, cut at least 5 dumbbell shaped test pieces at the same time, and lay them flat on the glazed brick sprinkled with talcum powder The cutting knife shall be stained with talcum powder each time 5.2.5 impervious test piece: place the linoleum base paper on the glass base plate, place the metal mold frame with the internal dimension of 150 mm × 150 mm × 3 mm in the middle, and prepare three at the same time 5.2.6 bond strength test piece: first prepare mortar block according to JC / T 408, then take 5 pairs of disconnected 8-shaped mortar blocks, remove floating sand and wipe it clean Dip a small amount of plasticized or melted coating respectively, and butt joint two half pieces after a little friction, so that the thickness of the adhesive coating is 0.5-0.7mm, and then stand on the glazed brick 5.2.7 all prepared test pieces must be placed for 24 hours at room temperature, and for 2 hours under standard test conditions before membrane removal 5.3 visual inspection during appearance sampling 5.4 the heat resistance shall be in accordance with JC / T 408 5.5 low tenderness shall be carried out according to JC / T 408 Bend with φ 20mm round bar 5.6 the density shall be in accordance with GB / T 13477 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,