Important Notes and Disclaimers:
The adapter described here is a temporary development version. The information in this manual is based on the current development status. Any changes will be made without prior notice. The use of the adapter is entirely at the user's own risk. The manufacturer does not assume any warranty or liability for the functionality, safety, or damage of the adapter directly or indirectly caused by its use.

Description:
A fitting ring suitable for standard Schrader car valve nozzles, which can be used with commercially available spray cans. With this adapter, the spray cans can be refilled and pressurized again.

Suggested uses:
For a 600ml spray can, it is recommended to fill it with about one-third of its volume to leave enough space for air pressure. This will only result in low working pressure. The actual performance depends on: the viscosity of the material used

Advantages:
Cost-effectiveness: It can be reused, reducing material costs compared to disposable spray cans.
Environmental protection: Reduce waste, because spray cans don't need to be discarded frequently
Flexibility: mix the colors by yourself and determine the amount of use by yourself
Reduce pressure risks: Under low pressure, the risk of sudden material failure or explosion is lower—the system is more likely to experience leaks before a catastrophic failure occurs.

Disadvantages/risks:
Limited performance: Low pressure means lower spraying pressure, shorter range, and uneven coating—especially for thick paints
Rapid pressure drop: The pressure drops faster under load
Safety risks: Incorrect pressure, unsuitable materials, or inappropriate lids can lead to leaks and even cause dangerous situations in extreme cases.
Material compatibility: There are problems with thick varnish or high-flow caps—they may cause clogging or uneven spraying
Responsibility: Since the refilling and pressurization are carried out outside the standardized production process, the risk is borne by the user. Maintenance: The valves and adapters must be kept clean and intact. Damage or leaks will increase the risk.