In how harsh a humid environment can sealed nuts coated with organic coatings maintain a good sealing effect

General Humid Environment: Epoxy resin coatings possess excellent waterproof, moisture - proof, and corrosion - resistant properties. In a common humid environment with a relative humidity of 70% - 90% and no obvious chemical corrosive media, such as basements and general indoor warehouses, sealed nuts coated with this epoxy resin can maintain a good sealing effect for 5 - 10 years.
Moderately Harsh Environment: Even in a humid environment with slight chemical corrosion, for example, in some factory workshops with a small amount of acid - alkali mist and a relative humidity of 80% - 95%, its sealing effect can still last for 3 - 5 years. This is because the epoxy resin coating can effectively block the contact between moisture, chemical substances, and the nut body.

General Conditions: Polyurethane coatings have good flexibility and wear resistance. In a common humid environment with a relative humidity of 60% - 80%, such as the installation environment of ordinary indoor electrical equipment, sealed nuts coated with this coating can maintain a good sealing performance for 8 - 12 years.
Relatively Harsh Situation: When facing an environment with high humidity and certain mechanical friction, such as on outdoor mechanical equipment where the relative humidity reaches 90% - 95% and the equipment operation generates vibration and friction, its sealing effect can last approximately 2 - 4 years.

Ordinary Situation: Carbon steel itself is prone to rust in a humid environment, but the anti - corrosion ability can be significantly improved after being coated with an organic coating. In an environment with a relative humidity of 70% - 85%, such as in general outdoor building structures, carbon steel sealed nuts coated with an organic coating can maintain a good sealing effect for 3 - 7 years.
Harsh Situation: In a coastal humid environment with high humidity and salt content, even with the protection of the coating, due to the inherent characteristics of carbon steel, its sealing effect may gradually decline within 1 - 3 years.

General Scenario: Stainless steel itself has a certain anti - corrosion ability, and it becomes even better after being coated with an organic coating. In a humid environment with a relative humidity of 80% - 95%, such as in underground tunnels, the sealing effect can be maintained for 10 - 15 years.
Extreme Environment: Even in an industrial wastewater treatment plant environment with high humidity and strong chemical corrosion, stainless steel sealed nuts coated with an organic coating can still maintain a good sealing performance for 5 - 10 years.

High - Temperature and High - Humidity: When the environmental temperature is high and the humidity is also large, for example, in an outdoor environment in tropical regions with a temperature of 30°C - 40°C and a relative humidity of over 95%, the aging speed of the organic coating will accelerate, and the sealing effect of the sealed nuts coated with the organic coating may be significantly affected within 1 - 3 years.
Low - Temperature and High - Humidity: In an environment with low temperature and high humidity, such as inside a cold storage where the temperature is between 0°C - 10°C and the relative humidity is 90% - 95%, the coating may become brittle, affecting its protective performance, and the sealing effect may last for 2 - 5 years.

Mild Pollution: If there are a small amount of chemical substances in the environment, such as mild acid - alkali vapor, and the relative humidity is 80% - 90%, the sealed nuts coated with an organic coating can maintain a good seal for 3 - 6 years.
Severe Pollution: In a chemical workshop with a large amount of strong acid - alkali, organic solvents and other chemical media and extremely high humidity, even with the protection of the organic coating, the sealing effect may only last from a few months to 2 years.

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