How to determine if a glue container is corrosion-resistant?

I. Quick Initial Screening Based on Labeling and Material

1. Parameter Label Verification: Directly check the factory label on the container to confirm whether it indicates compatibility with corrosive media and the material of the anti-corrosion lining (such as vinyl ester resin, butyl rubber). Ordinary containers without such labeling generally do not meet corrosion resistance standards.

2. Material Type Identification: Fiberglass, stainless steel with anti-corrosion lining, and thickened PP/HDPE containers have significantly better basic corrosion resistance than ordinary thin sheet metal or recycled plastic containers, allowing for quick initial screening.

II. Non-Destructive Rapid Practical Testing

1. Drop Reagent Test: Drop one drop of the corrosive glue/solvent to be stored onto the concealed outer side of the container. After standing for 30 minutes, wipe it clean. If the container does not dissolve, become sticky, or change color, it is considered to have passed basic corrosion resistance testing.

2. Sound Test by Tapping: For tanks with anti-corrosion linings, gently tap the tank wall with a small hammer. A uniform, solid sound indicates a tight, non-hollow lining bond; a hollow sound indicates delamination and ineffective anti-corrosion performance.

3. Small-Capacity Immersion Verification: Place a small amount of the corrosive adhesive to be stored into the tank, seal it, and let it stand for 24 hours. After pouring it out, observe the inner wall. No swelling or peeling, and no abnormal deterioration of the adhesive, can quickly confirm compatibility.

III. Simple Instrument-Assisted Verification

1. Spark Leak Detection Test: Scan the inner wall of the tank with a low-voltage spark tester. No breakthrough sparks indicate that the anti-corrosion layer is intact without pinholes or cracks, and the anti-corrosion seal is qualified.

2. Thickness Gauge Verification: Measure the thickness of the anti-corrosion coating with a magnetic thickness gauge. A uniform thickness that meets the design value indicated on the product label indicates that the anti-corrosion layer thickness is up to standard and will not be prematurely corroded due to localized thinness.

IV. Rapid Verification of Compliance
1. Request the tank's factory inspection report to confirm that the adhesion of the anti-corrosion layer and the chemical immersion resistance test items meet the standards and comply with the general acceptance specifications for industrial anti-corrosion storage tanks. This can quickly confirm that the product's anti-corrosion performance meets industry standards.