Aerosol products have four main components, aerosol cans, valves, material, and ejector gas. Due to the differentiation of product formulations, we often need to consider the corrosiveness and pressure resistance between the filled material and the container when choosing the package. We know that there is a water-based aerosol product, which is highly corrosive to the can. So filling water-based aerosol products the key issue is the corrosion of the can, and the quality of the aerosol can directly affect the corrosion resistance. Factors affecting the quality of aerosol cans, from raw materials, can-making equipment and processes to quality testing, there are many, the following brief introduction. 1.The quality of tinplate itself Tinplate base material used in the manufacture of cans requires high purity, such as impurity content is too high, affecting the ductility, brittleness, hardness and other processing properties and corrosion resistance, at present, most of China's tinplate base material imported from abroad. Some manufacturers in order to reduce costs, the use of low-quality thin tinplate cans, tinplate itself has tiny holes in the sand, resulting in leakage of the cans, the selection should pay special attention to.   2. Can body welding and coating quality For Aerosol Tin Cans, one of the weaker links is the weld, in addition to the strict requirements of mechanical properties, the weld is easily corroded due to the destruction of the tin layer, and thus the filler coating is a three-piece cans of a key technology, a lot of water-based products leakage cans are due to the filler coating and the contents of the incompatibility caused by. In addition, the current is unstable or unstable quality of copper wire, etc., are easy to product welding, the formation of leakage points.   3.The type of internal coating and densification Internal coating is one of the effective anti-corrosion method of water-based products (except DME as a propellant), but the quality of the internal coating material itself and the coating process will affect the corrosion resistance of the product, such as the coating of some of the naked eye is not easy to find bubbles, the electrochemical reaction is particularly strong in these places, over time it is easy to corrosion and rust so that wear cans, especially in the top and bottom of the lid and the weld contact with the tank body in the cans are prone to produce damage! In addition, the denseness of the coating is more important, many water-based products leakage of cans are present in this place. Currently used in the internal coating of epoxy a phenolic, imide an epoxy, PVC and other types, the use of more epoxy a phenolic, but the quality of different manufacturers are different, the selection should be good compatibility test.   4.Sealing quality  Good sealing equipment and process is an effective guarantee of the sealing performance of aerosol cans, volume sealing of the hook and loop is an important indicator of the test, if the control is not good (including production processes and testing), it is easy to seal the imperceptible micro-leakage.   5.Leak detectio  Aerosol products are mostly flammable and explosive products, each factory aerosol cans must be tested by the online pressure leakage detection machine, while the deformation pressure and burst pressure must be carried out in accordance with the provisions of the sampling to ensure the safety of the product production, storage, transport, use. Some manufacturers in order to reduce costs, not in accordance with the provisions of the leak detection, these cans are very likely to exist in the quality or safety hazards.    6. Sealant Aerosol cans and cans between the lid by the sealant in order to achieve the sealing requirements, the choice of a good sealant and coating process is critical to the quality of the can, in addition to the quality of the sealant itself should be strictly controlled, the sealant on a variety of solvents, especially strong solvents, DME and other solvency, dissolution, dissolution of the performance of the strict, long time to carry out the test, otherwise it will appear to destroy the sealant and leakage, there have been some of the can factory to appear such a situation. This situation has occurred in some can factories. When applying glue, the broken glue or uneven distribution, blistering, insufficient amount of glue applied, etc. are prone to problems. Due to the aerosol contents are very different, plus the sealing performance can not be determined within a short period of time, the quality of the sealant can only be guaranteed through the long time production experience of the can manufacturer and strict quality control.   From the above points we can know, regardless of the production of which aerosol products, the choice of packaging containers is very important, we not only need to consider the corrosiveness of the contents, but also need to consider the pressure resistance of the can, because the aerosol products belong to the pressure of the product, the filling pressure will be too big burst cans, the pressure is too small may not be able to achieve the desired effect of the spray. Therefore, we need a reasonable combination of product characteristics to choose the right aerosol cans!  

What performance tests are required for aerosol cans？ 1. Appearance Quality Visually inspect the sample under natural light, including checking for defects, imperfections, and other inspection items. Testing: The purpose is to record the physical appearance of the sample to determine if the aerosol can is flat and free of rust spots. Aerosol can with internal coating, the internal coating should be uniform and free of protrusions and impurities. The printed graphics and text are clear and complete, with no obvious scratches on the main parts. 2. Size The height of the can body, total height, crinkle height, the outer diameter of the aerosol can opening, the inner diameter of the aerosol can opening,the outside dia of the double seam and height of the double seam should all be within the specified deviation range. Testing: You can learn about the specifications of the aerosol cans you produce and whether they meet the technical requirements for sealing samples 3. Integrity of weld coating The integrity of weld coating refers to the coverage area of the weld coating and the adhesion performance between the coating and the substrate, used to protect the weld and its surrounding areas from corrosion and environmental damage. Testing: Integrity testing of weld coating can detect defects in both weld and coating, such as porosity, inclusions, cracks, and other defects inside the weld, or defects such as bubbles, peeling, and pitting on the coating surface. If these defects are not detected and addressed in a timely manner, they may affect the sealing and safety performance of the aerosol can, and even lead to serious accidents such as aerosol can explosions. 4. Adhesion of inner and outer coatings of aerosol cans The adhesion between the inner and outer coatings of aerosol cans refers to the adhesion performance between the coating and the substrate, which is an important parameter of coating performance. Testing: Internal and external coating adhesion testing can ensure that the adhesion performance between the coating and the substrate meets the standard requirements, avoiding the occurrence of coating peeling, cracking, or detachment. This can not only extend the service life of aerosol cans, but also improve their safety and reduce potential hazards. 5. Hardness of the outer coating of the aerosol can The hardness testing of the outer coating is to ensure the wear resistance and scratch resistance of the surface of the aerosol can during use. Testing: The outer coating hardness test can evaluate the hardness and scratch resistance of the coating, thereby determining the quality and durability of the coating. In addition, the hardness test of the outer coating can also detect quality issues of the coating, such as possible defects such as air bubbles and sagging, which may cause coating detachment or surface damage, thereby affecting the safety performance of the aerosol can. 6.Air tightness performance of aerosol cans Airtightness performance testing refers to determining the airtightness performance of an aerosol can under pressure differences inside and outside the can by testing its sealing performance. Testing: Aerosol cans need to withstand a certain amount of pressure during use, so their sealing performance has a significant impact on their safety and service life. If the airtightness performance is poor, it may lead to excessive internal pressure or leakage of the aerosol can, thereby causing safety accidents. 7. Deformation pressure Deformation pressure testing refers to the pressure testing of an aerosol can to determine whether it can withstand a certain amount of pressure deformation without breaking. Testing: During use, aerosol cans may be affected by external forces such as collision, compression, etc. If the structure of the aerosol can cannot withstand a certain amount of deformation pressure, deformation or rupture may occur, leading to safety accidents. 8. Burst pressure Burst pressure testing refers to the process of conducting pressure tests on aerosol cans to determine their maximum allowable pressure. Testing: During the use of aerosol cans, due to changes in pressure and environmental influences, the internal pressure may suddenly increase, leading to serious accidents such as explosions. Therefore, when manufacturing aerosol cans, it is necessary to conduct a burst pressure test to ensure their safety performance within the normal operating pressure range. Compatibility and hygiene requirements testing can be conducted based on customer requirements and product properties.

<The more detailed the requirements, the more accurate the quote> Before the supplier gives the quotation to the customer, if the customer can provide more detailed requirements, the price obtained will be more accurate, the following is the product information that needs to be known before the quotation of aerosol cans (The content of this article will include aerosol tin cans and aerosol aluminum cans): Product size Aerosol tin cans and aluminum cans have several fixed diameters. The diameters of tin cans are 45/49/52/57/65mm,  Aluminum cans have diameters of 35/28/40/45/50/53/59/66mm. Each diameter can be customized different heights, customers can refer to the forms below to determine what size to be customized. About aerosol tin can Type Diameter (mm) Top (cone) Code Bottom (dome) Code Height Range (mm) Pressure CN lntl CN lntl CN lntl Deformation (Mpa) Burst (Mpa) Neck in 45 112 185 111 190 112 96-100 ≥1.20 ≥1.40 49 115 491 / 492 / 100-170 ≥1.20 ≥1.40 52 202 195 200 200 202 100-240 ≥1.25 ≥1.40 57 205 201 202 203 205 100-240 ≥1.20 ≥1.40 65 211 207.5 207.5 209 211 95-300 ≥1.20 ≥1.40 70 214 211 211 213 214 100-240 ≥1.20 ≥1.40 Straight wall 65 211 211 207.5 211 211 100-240 ≥1.20 ≥1.40 We also can supply UN and DOT standard aerosol can About aerosol Aluminum can Diameter (+/-0.3mm) Height (+/-0.4mm) Full Volume (mm) Shoulder Opening 35mm 70 53 Round, Flat 1 inch 120 98 150 126 38mm 90 88 Round 120 121 170 177 40mm 92 96 Round, Drum, Rim 130 140 150 163 190 208 45mm 105 138 Round, Drum, Rim, Flat 150 206 190 266 50mm 120 196 Round, Drum, Rim, Flat 150 252 200 345 225 392 53mm 115 211 Round, Drum, Flat 165 317 180 349 220 433 59mm 140 320 Round 180 430 215 520 235 560 66mm 140 373 Round 180 508 220 642 240 710 Other can heights can be customized Product Use It is also very important to tell the supplier what the purpose of the cans is, as there are some products which the cans need to be customized with an internal coating (e.g. insecticide spray and air freshener). In addition, there are some regular sizes of products that will be available on the market, standard sizes that are customized by most manufacturers: 45x128mm and 52x130mm for Snow spray, 65x100mm for Air Freshener, 65x158mm for Spray Paint, 65x158mm for Butane gas can (straight wall can) Quantity Requirement Different prices for different quantities, generally speaking, we will recommend customers to choose FCL (20'GP or 40'HQ), the price will be more favorable than LCL MOQ is 7,500-9,000 pcs for aerosol tin can MOQ is 20,000 pcs for aerosol aluminum can --Container Size Reference-- Printing Requirements Aerosol tin can: 3 pieces can——CMYK 4 color/ Panton color, Printing technology is offset printing 2 pieces can——4-6 color outside printing, Printing technology is thermal transfer Aerosol aluminum can: clear lacquer/ silk screen printing/ offset printing/ embossment/ vacuum coating Trade Terms Suppliers will quote based on the trade terms that the customer wants to do, the following is a concentration of common choices EXW/ FOB/ CIF/ CFR, etc.

The printing of empty tin cans starts with the printing of the can body on tinplate sheets, which is then cut and rolled into cans, cone and dome. At present, the size of one piece tinplate sheet is fixed, and the diameter of tin cans are mainly 45/52/57/60/65/70 mm. The MOQ of tin can printing is 1500 pieces. After finishing printing, they will be cut into patches line by line.    It means that a piece of tinplate sheet can only be printed with the same diameter and height. Quantity per line available for different diameters for one piece of tinplate sheet. Different diameters, different amounts can be printed per line Diameter Qty / line 45 mm 6 cans 52 mm 5 cans 57 mm 5 cans 60 mm 5 cans 65 mm   4/5 cans 70 mm 4 cans   Generally, one piece of tinplate sheet can be printed for about 4-6 columns regarding the height of the can. There is at least one design for one line.  For example, a line is 5 cans, 1500 sheets is 7500 cans. If there is 5 rows and 5 column for the all the sheets, 37,500 cans can be printed in total.   If you place an order for a can with printing that it is not enough for one line or more than one line, you may have to adjust the quantity. If the number of orders placed is not enough for the number of cans for all the sheets, you have to wait for other cans of the same diameter to print and produce together.  Time is unforeseeable, so many customers are directly order the whole package of large iron to save delivery time! This is the tin can layout, do you get it?