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Air Freshener Aerosol Tin Cans: Fixing 3 Common Leakages in High-Pressure Canisters
2026-01-22
Unboxed a high-quality air freshener aerosol tin canonly to find propellant leakage after just two uses? This is no trivial matter—Air Freshener Aerosol Tin Cans, which hold high-pressure gas, not only waste products when their seals fail but also pose potential safety hazards. When customizing leak-proof sealed air freshener aerosol tin cans, SAILON compiled hundreds of customer feedback on faults and found that three leakage points occur most frequently, each with clear solutions.

The three leakage points most prone to occur are:
- Substandard top and bottom seaming overlap rate, forming microcracks invisible to the naked eye
- Uneven stress distribution during side seam welding, prone to cracking under high pressure
- Insufficient can mouth processing precision, leading to gaps when matching with valves
Seaming is the basic line of defense for the sealing of Air Freshener Aerosol Tin Cans. In handling customer feedback, SAILON found that many leakage cases are related to seaming quality—there was once a batch of cans processed by an external supplier with a seaming overlap rate of only 92%, and the leakage rate exceeded 5% after being delivered to the customer. Later, we took over the optimization, raised the overlap rate standard to over 98%, and matched it with dual-station visual inspection. The pass rate of precision-processed air freshener aerosol tin cans has been stably maintained at 99.9%.
Beyond seaming, the stability of side seam welding is equally crucial. High-pressure resistant air freshener aerosol tin cans need to withstand internal pressure for a long time. Even a temperature deviation of a few degrees Celsius during welding may leave hidden cracks. Once, a downstream customer reported that some cans leaked after long-distance transportation. After tracing, SAILON confirmed it was caused by concentrated welding stress. Now we use adaptive pulse welding technology, and each weld undergoes 48 hours of high-pressure static placement after completion to ensure that industrial-grade air freshener aerosol tin cans can withstand transportation jolts and daily use pressure.
The matching precision between the can mouth and the valve is easily overlooked. The processing error of the can mouth of precision-matched air freshener aerosol tin cans must be controlled at the micron level; otherwise, even high-quality valves cannot achieve tight sealing. SAILON conducted a comparative test: when the can mouth precision is ±0.01mm, the leakage rate is less than 0.1%; when the error expands to ±0.03mm, the leakage rate soars to 18% directly. Based on this, we locked the can mouth processing precision of all custom air freshener aerosol tin cans at ±0.01mm and also provided multi-model valve matching solutions.
Below is a summary of SAILON's standardized solutions for these three types of leakage problems, suitable for the production needs of various leak-proof air freshener aerosol tin cans:
| Leakage Type | Core Cause | Solution |
|---|---|---|
| Top and Bottom Seam Microleakage | Overlap rate <95%, lack of inspection | Increase to 98%+ overlap rate, dual-station visual inspection |
| Side Seam Welding Cracks | Temperature deviation, stress concentration | Adaptive pulse welding, 48-hour high-pressure static placement |
| Valve-Can Mouth Matching Leakage | Insufficient can mouth precision, poor compatibility | ±0.01mm micron-level processing, multi-model matching |
Two Common Questions from Customers
Q: Besides process control, do SAILON's long-lasting leak-proof air freshener aerosol tin cans have other sealing guarantees? A: There are also strict requirements on the raw material side. The food-grade tinplate we use has undergone passivation treatment, which not only improves sealing but also resists corrosion. In addition, each batch of finished products will be sampled for a 1.2MPa high-pressure test (far exceeding the industry's 0.8MPa standard), and it is only qualified if there is no leakage for 120 seconds, providing double protection for the sealing effect.
Q: Are there any small tips to reduce leakage when storing Air Freshener Aerosol Tin Cans daily? A: In most cases, leakage is also related to improper storage. Avoid placing in high-temperature environments exposed to direct sunlight (there is a risk when exceeding 40℃), and do not stack heavy items to squeeze the can body. Choosing products with qualified craftsmanship like SAILON, combined with correct storage, can basically eliminate leakage problems during use.
The sealing effect of Air Freshener Aerosol Tin Cans can never be achieved by meeting the standards of a single link. When customizing such cans, SAILON strictly adheres to the standards in every step—from raw material selection to the detailed control of each process, and then to factory inspection. After all, for users, an air freshener aerosol tin can that is safe to use and does not leak is the core demand.










