• by admin
• 2022-09-09

How to check the quality of EPS foam sandwich panel?

1. Observe the thickness of substrate and plating

EPS foam sandwich panel is composed of substrate and color coating or electroplating. First of all, EPS sandwich panel manufacturers suggest that the thickness of the base material and the delamination should be considered. The better substrate of EPS sandwich panel is 0.02-0.5mm, and the thickness of the coating or the coating is often only less than 0.15mm. Because from the perspective of affecting the service life of EPS foam sandwich panel, the thickness of the substrate is very important.

Some manufacturers have made changes to the substrate and EPS foam sandwich panel coating or film. They reduce the complexity of the substrate, but increase the thickness of the peritoneum, thus reducing the production cost of EPS sandwich panels and greatly reducing the service life of foam sandwich panels.

2. Observe the edge leakage of EPS sandwich panel

When we get the EPS foam sandwich panel, we can first observe whether the exposed steel of the EPS sandwich panel has fine grains, and whether there are off white, dark and impurities. If the crystallinity of the cut surface is good, the quality is very good.

3. Listen to the sound

Tap EPS foam sandwich panel with fingers or hard objects. If the quality of foam sandwich panel is not good, the sound will be dull and the metal sound will not be obvious. The metal sound of EPS sandwich panel with better material will be louder and clearer.