Polystyrene sandwich panel for roof hot sell from china

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Polystyrene sandwich panel for roof hot sell from china

Q:Rock wool sandwich panel price rock wool sandwich board how much money a square meter: This depends on the weight of rock wool, as well as color steel kind. If you need, we plant production. This answer is provided by Hebei Chengxin chemical building materials, if satisfied please adopt.

Q:Is the polyurethane sandwich panel and foam board flame retardant?: On the market, the polyurethane foam flame retardant grade B1, B2, B3 three grades. Because of the cost, sandwich board with the majority of polyurethane material is B3 level, a small amount of B2 level, there are a small amount of special requirements B1 level. B1 level for the 'flame'; B2 level for the 'combustible'; B3 level for the 'flammable'. B1 grade oxygen index requirements of more than 30%; B2 level requirements of more than 26%, 26% of the following collectively referred to as B3 level. You said the flame retardant, it should be self-extinguishing from the fire. B2, B1 from the heat certainly no problem. A little better B3 (oxygen index of about 25%) can also be self-extinguishing, but more than B2 self-extinguishing time more than a few seconds. General oxygen index of less than 24%, it is difficult to self-extinguishing from the fire, will always burn, the greater the greater the burning. The The Oxygen Index: The concentration of oxygen required to stabilize the combustion in the oxygen and nitrogen gas mixture under the specified shape of the foam, the specified source of fire and the size of the flame. - For example, the better the flame retardant properties of the foam, the higher the concentration of oxygen needed to ignite the foam, the higher the oxygen index of the bubble

Q:Color steel sandwich board glue is a mixture of vinyl and white plastic, resulting in a chemical reaction caused by sticky. Does anyone know the chemical name of black gelatin? Vinyl are basically imported, and that how is the deployment of white plastic? Is the sandwich used in the sandwich plate diluted? That color steel PU foam with the glue is not the same black and white glue generated reaction? Hope to receive professional mention.: Black material for the rough MDI grade 5005 44V20 which PM200 for domestic and so on. White materials are mostly phthalic anhydride polyester polyols and dichloromethane solvents and catalyst additives.

Q:Sandwich board is 50,75,100,150, color steel thickness, casually one can.: Color steel sandwich panel thickness from 0.25-0.8 can be customized Detailed price can consult OKorder to enjoy color steel structure Co., Ltd. 021-39105864 This is a professional production and processing Caigang sandwich panel Caigang tile manufacturers

Q:Glass wool cotton color steel composite panels, also known as sandwich panels should be how to do re-test? Is it good to do it?: Do the bare board re-test or do complex panel to see your design requirements and product record is how to prepare. Sometimes it is compound re-examination

Q:Polyurethane sandwich panels in the polyurethane is what material, what are the benefits of industrial building materials should choose polyurethane?: Polyurethane is a two-component AB material (isocyanate and combined polyether) mixed foam, is the thermal insulation material in the lowest thermal conductivity of 0.017 ~ 0.024 (thermal conductivity of the lower the better insulation). Polyurethane sandwich panels used in the filling process of polyurethane, pre-made pre-insulation board directly installed on-site use. If your plant area is relatively large, it is recommended that you only use the whole color plate, and then use the field of polyurethane spray foam process, this process than the infusion process is the advantage of spraying seamless, better insulation. The cost is still lower than the infusion process.

Q:How do you keep the shower and the regulating valve on the foam sandwich plate? Please enlighten me: You need to use the screws to be fixed, even in the surface of the fixed are not used to wear screws to get better! "Wear" means, is to wear sandwich panels, with a screw through the sandwich panel and the other side of the sandwich panel fixed.

Q:Steel structure, activities, such as sandwich panels board generally what kind of self-tapping screws fixed ah?: Self-tapping screw, the English name Self-tapping Screw is a metal or non-metallic materials in the pre-drilling hole in the self-drilling with a female thread with a threaded fastener. Self-tapping screws are used for connection between thin metal plates (steel plates, saw boards, etc.). When connecting, first thread the bottom of the connector, and then screw the tapping screw into the threaded bottom hole of the connected part. As the tapping screw thread surface has a high hardness (≥ 45HRC), can be connected to the threaded bottom hole in the internal thread, thus forming a connection.

Q:Why do you want to use polyurethane seal on both sides of the multi-dimensional joint group of OKorder Yanmian sandwich panels: As a new type of rock wool sandwich panels, his plate is a dark buckle is not nails, so that the board on both sides of the plug interface into the opposite sex, and in the production process sent by the rock wool is equal thickness, which makes The mouth and the mouth of the mouth of the cotton-free cavity, and the subsequent manual joints, but also produce cotton and steel plate bonding performance is poor, anti-stripping poor, this result will be cold in the winter, summer will produce heat Bridge, the more serious is in the wall board, bear the load object entirely by the self-tapping to bear, and because the rock wool sandwich panel is horizontal installation, and its two sides of the plug interface becomes the upper and lower parts, and its Is empty, so that the rock wool is completely attached to the steel by glue, a long time, rock wool fall, resulting in deformation

Q:Color steel sandwich panels are prefabricated or on-site production processing: Not prefabricated, is custom production.

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