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According to the developer productionscale testing of its TechniSand TruCoat resincoated sand has shown free phenol falling below detectable limits

Resin-Coated Sand Lowers In-Plant Smoke, Odor, Emissions

May 2, 2016
Environmentally sound product that addresses high-productivity emissions control needs. Reduce HAPs 41% Cut free phenol levels 62% Lower free formaldehyde 35%

FAIRMOUNT SANTROL introduced its TechniSand TruCoat resin-coated sand with the claim that it has been engineered “to dramatically lower in-plant smoke, odor and emissions as well as deliver superior performance.” It added that the material would help foundries reduce hazardous air pollutants (HAPs) by 41%; drive free phenol levels down by 62%; and lower free formaldehyde by 35%.

In regard to hazardous air pollutants, odor, and smoke, the developers indicated the sand product would lower smoke resulting from reduced emissions, and neutralize offensive odors with its patented Neozien® technology.

Foundries’ productivity factors would be improved by TechniSand TruCoat, Fairmount reported, because its resin-coating technology promotes superior casting quality, uniform curing, and fewer casting defects. Molds and cores produced with the materials reportedly support higher melt points, which improve metal flowability and casting finish. In addition, the sand’s better heat-transfer capabilities shorten cycle times and curing times.

The developer further claimed that the new sand product provides the opportunity to produce castings with reduced wall thicknesses, which reduces sand and resin usage, and thus minimizes waste.

In terms of productivity, the developer claimed that TechniSand TruCoat would reduce lamination and peel-back defects; increase “core strength” to reduce breakage, and lower Loss on Ignition (LOI) for fewer gas-related defects.