High-performance Petrobond®* clay based foundry sand: professionally formulated, produced, and quality inspected in the USACompatible with Precious and Non-precious Metals: Silver, Gold, Pewter, Aluminum, Zinc, Copper, Brass, BronzeNear die cast finish: Especially Useful for high-detail casting of Decorative and Functional itemsFine-grained 130 Mesh Sand for balance between mold detail and ventingPremium-Quality Ingredients: Genuine Petrobond® Clay, Oil, and USA-Sourced Round-Grain Silica.OverviewTeton 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.Supported Applications-Mold 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.Directions/Use Notes-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)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 (fix dry sand):-Add a tiny amount of isopropyl alcohol to the sand (ideally via bottle 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.Reusing Sand/Black Crust-Sand is mostly resuable per casting.-Small amount of black 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 should be discarded.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.Sand Base TypeRound-Grained Silica, 130 meshBinding AgentPetrobond Clay and OilService Temp Limit~2000F (Bronze) May go hotter with heavy loss per casting.Performance AdditivesPetrobond does not need additives.Ramming PressureMed: Ramming/Pressing is Required for mold strengthMaintenanceGenerally not needed. Reuse85-95%. Depends on pour temps and practices.Draft2-3% Draft is Required to get patterns out without damaging molds. Silica Content90%+ Silica content comes from potential contaminants in petrobond binder plus sand base itself. (see SDS) Special ProceduresThis sand is cold sensitive and may seem to be dried out if exposed to cold. See instructions on bag for remedy. Not appropriate for use below 65F as supplied--additional oil may be added to increase cold tolerance (at some expense of detail/surface finish). Teton Foundry Supply Co. industrial products are intended, labeled, and packaged for sale to trained/experienced industrial, institutional, and occupational customers for workplace use. These products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, etc.). Considerable foundry experience and domain expertise are required to use Teton Foundry Supply Co. products in a safe manner. Teton Foundry Supply Co. products must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA) in addition to any and all product labeling, safety data sheets, etc. Misuse of Teton Foundry Supply Co. industrial products may result in injuries, sickness, death, and/or property damage. Users with questions regarding specific safety-related product selection, safety protocols, equipment, planning, etc. should engage a local safety professional, industrial hygienist or other expert who can provide individualized guidance.