In this process, granular refractory sand is coated with a mixture of bentonite clay, water and, in some cases, other additives (Fig. 1). The additives help to harden and hold the mold shape to withstand the pres-sures of the molten metal. The green sand mixture is compacted by hand or through mechanical force around a pattern to create a mold. The me-chanical force can be induced by slinging, jolting, squeezing or by impact/impulse.
Cultured Stone is essentially manufactured stone used as a decorative finish for the exterior and interior of your home.It is made up of Portland cement, lightweight natural aggregates and iron oxide pigments.ultured Stone is essentially manufactured stone used as a decorative finish for the exterior and interior of your home.
A newly opened Hyriopsis cumingi, a freshwater mussel, showing rows of cultured pearls inside. A cultured pearl is a pearl created by an oyster farmer under controlled conditions. Cultured pearls can be farmed using two very different groups of bivalve mollusk: the freshwater river mussels, and the saltwater pearl oysters. Pearls are considered to be an important part of making ornaments since ancient times. Generally pearls grow in a marine animal called oyster.