Stalk and Riser Tubes

stalk and riser tubes provide long life, are non-wetting and thermal shock resistant; making them the best material for your low pressure casting operation. Rex Materials has developed a family of fused silica products. Our material was specifically developed for low pressure casting applications.

Our new low cost manufacturing process results in a tube with low porosity; resulting in extremely low leak rates. is completely non-wetting to aluminum. Tubes can be ordered with a special BN coating for additional non-wetting protection against aluminum and other metals. Long life and low leak rates are the key characteristics of tubes.

Features:	Benefits:
Low coefficient of thermal expansion	Excellent thermal shock resistance & dimensional stability, no pre-heating
Low porosity	Extremely low leak rate
Chemical inertness	Long life, corrosion resistance
High hardness	Long life, wear resistance
Unique cast technology	Cost effective, complex shape capability
Non-wetting material	Long life, ability to change the filter

represents a family of high purity fused silica materials tailored to achieve optimum properties required for molten metal applications. products are precision cast into a wide variety of sizes and shapes, from small and intricate to extremely large, including shapes with complex internal features – typically without the need for costly machining.

is made from fused silica that has been sintered to a high temperature. Today they are used in many non-ferrous applications, including but not limited to, tapblocks, trough liners, filter bowls, flue port blocks, pour basins, spouts, control pins, dipping ladles, and stalk tubes. Rex Materials' ability to supply quality shapes cost-effectively enables you to use parts in applications where ordinarily fused silica products have been too expensive.

stalk and riser tubes are made with a unique process allowing us to be very cost effective. All tubes are leak tested to ensure they meet strict requirements. tubes come in various sizes up to 60" tall.

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