After welding, the guardrail net needs to undergo post-processing procedures. So why does the guardrail net need to be sandblasted during spraying? Now let's explain to our clients. The spray coating treatment of guardrail net is to use the principle of electrostatic adsorption on the surface of the guardrail net to apply spray coating to powder adsorption on the surface of the guardrail net.
Guardrail net
But if the surface of the guardrail net is not very clean, the effect of electrostatic adsorption is not very obvious. It is very necessary to sand before electrostatic spraying treatment. Sanding treatment can not only remove welding slag on the surface of the guardrail net, but also form a layer of frosted effect on the surface of the guardrail net. The advantage of this is that it can increase the adhesion of the spray powder, making it difficult for the plastic powder on the surface of the guardrail to fall off, and increasing the service life of the guardrail.