Teton Supply Co™ Teton-Bond™ 130 is a high-performance Petrobond®* clay based foundry sand that is professionally formulated, produced, and quality inspected in the USA. Made with 130 Mesh Silica for general purpose use on smaller castings (up to 6").
-Molds for Precious and Non-Precious casting (non-ferrous metals including gold, silver, aluminum, brass, bronze, zinc, etc)
-Use as a facing sand with other sand systems such as water-bonded greensand.
-Backing sand for delft-clay in order to increase delft clay utilization.
-Sand should be riddled (broken up) prior to placing against pattern.
-Moderately heavy ramming or pressing is required for optimal mold performance.
-Appropriate mold release should be used with all patterns to avoid sticking and to maximize detail reproduction (Teton-Part™ or similar is recommended)
Weak Sand Molds (can't pull pattern without mold collapse)
-Use adequate ramming pressure. Using hands and fingers alone will not provide sufficient ramming pressure.
-Use quality parting/pattern compound.
-Use minimum of 3 degree draft on patterns.
-Pattern Surface finish is important. Rough patterns will require more than 3 degree draft.
Cold Sensitivity: Dry and Powdery Sand that does not hold form
-Use and store above 65F
-Sand may become powdery or dry if exposed to cold.
Regenerating Sand (how to fix dry sand that has been exposed to cold)
-Add a tiny amount of isopropyl alcohol to the sand using a sprayer and mix well. Generally, less than 1/2 teaspoon Alcohol required for 10lb evenly spread through the sand.
-Always allow alcohol to evaporate completely before attempting to use sand.
-Allow molds to sit for sufficient time after pour to limit smoking
-Sand is mostly reusable per casting.
-After pour, small amount of crust is formed around the casting.
-This crust is two parts: 1. Black sand. 2. Grey, "crispy" sand
-Only the grey sand that feels "crispy" next to the casting needs to be discarded.
-It is normal for a sand-pile to darken with use.
Product Volume/Weight Info
-10lb of this product fills a volume of around 200 cubic inches (Approx 6"X6"X6" cube) when moderately rammed (packed).
*=Petrobond® is a registered trademark of Halliburton Energy Services, Inc.