Casting coating self-hardening sand has a lower gas evolution
Release time：2026-03-08
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When selecting casting coatings, one should fully understand their characteristics. Allow our editor to introduce the prominent features of casting coatings to you.
1. The self-hardening sand for foundry coatings has lower gas emissions and better collapsibility.
2. The resin and curing agent used in casting coatings do not contain harmful elements such as nitrogen, sulfur, and phosphorus.
3. Good curing performance, with adjustable starting time. Three types of curing agents can be used as base layers to meet the curing requirements of core sand in different seasons.
4. Foundry coatings possess unique high-temperature characteristics. Alkaline phenolic resin sand cores exhibit thermoplasticity and high-temperature secondary hardening properties. Therefore, they can prevent hot cracking and burrs in castings.
The above is about the low gas evolution of self-hardening sand with foundry coating. I hope it can help you
