1.How to clean and protect in daily life?
Surface cleaning
Cleaning frequency: Clean at least once a quarter, depending on the use environment (e.g., more frequent cleaning in humid and dusty environments).
Cleaning method: Use a soft cloth or brush to remove dust and dirt from the surface. Avoid using hard tools such as steel wool to prevent scratching the galvanized layer.
If there are oil stains or stubborn stains on the surface, dilute it with a neutral detergent (such as dishwashing liquid) and wipe it, then rinse with clean water and wipe dry.
Precautions: Avoid using acidic or alkaline detergents (such as toilet cleaners, strong alkaline solutions) to avoid corrosion of the galvanized layer.
2.What are the moisture and rust prevention measures?
Environmental control: Avoid long-term humid environment (such as outdoor stacking) during storage or use. If it must be stored outdoors, cover it with waterproof cloth and keep the bottom ventilated (wooden blocks or bricks can be used as pads).
Local anti-rust treatment:
If the galvanized layer is damaged (such as scratches or rust spots), it is necessary to sand it with sandpaper to remove rust in time, and then apply anti-rust paint (such as zinc-rich primer) or spray galvanized repair agent to prevent rust from spreading.
Regularly check the corrosion-prone parts such as welding points and cuts. If there are signs of rust, treat them according to the above method.
3.How to maintain in high temperature environment?
If the galvanized square tube is used in a high temperature environment (such as around an industrial furnace),
Note:
Avoid long-term exposure to high temperatures above 300℃ to prevent the galvanized layer from oxidizing and falling off.
Regularly check whether the galvanized layer in the high temperature area has changed color or peeled off. If it has fallen off, it needs to be re-coated with high temperature resistant paint (such as aluminosilicate paint) in time.
4.How to maintain in a corrosive environment?
In highly corrosive environments such as chemical workshops and coastal high salt fog:
Increase the cleaning frequency (once a month) and rinse the surface salt or chemical residue with clean water.
Epoxy resin paint or polyurea coating can be applied on the outside of the galvanized layer to enhance the anti-corrosion ability.
Shorten the inspection cycle (once a quarter) and focus on the parts prone to corrosion.
5.How to maintain in an outdoor environment?
Square tubes used outdoors for a long time (such as guardrails, outdoor frames):
Check the integrity of the galvanized layer once a year and repair the exposed metal parts in time. ◦
Acid rain is frequent in the area, and the surface needs to be cleaned in time after rain to reduce the acid residue.