Over 100 years of successfully serving the glass industry.
Choose from an array of chemistries and particle size distributions. Or have us create your custom blend.
Product Quality
![Low Iron Glass Sands](/sites/default/files/styles/750x550/public/2019-08/Low%20Iron_Rockwood_1Glass%20Sand_1_1.jpg?h=f4e68e79&itok=liSBwFFD)
Product Quality
High-purity consistent products
- High-quality sands with few impurities enhance operational consistency
- Daily product testing ensures consistency in chemistry and sizing
- Low-iron sands can be further refined through flotation or magnetic separation
- Special processing techniques and grinding capabilities control particle size
Product Selection
![sheets of glass](/sites/default/files/styles/750x550/public/2019-10/iStock-1018350746.jpg?h=c4482f5d&itok=Hbg9WHYa)
Product Selection
Broad offering, customized solutions
- Low-iron options optimize color and clarity
- High-aluminum options available for increased durability
- Combination of high-aluminum and low-iron products optimize processing
- Some of the whitest and brightest sands found on the market
Locations
![Map of ISP Locations](/sites/default/files/styles/750x550/public/2019-07/Screen%20Shot%202019-07-25%20at%2010.38.17%20AM.png?h=00c96f5c&itok=YfdT41eE)
Locations
Everywhere you need us
- Strategically located plants minimize freight costs and speed delivery time
- With so many plants and products, chances are we have exactly what you need
- Diversity of plant locations helps ensure reliable, uninterrupted shipments
Research & Development
![solar panels](/sites/default/files/styles/750x550/public/2019-10/iStock-1032683612.jpg?h=c9f93661&itok=1MuFVkLT)
Research & Development
Strong Reputation for innovation
- More than a mining company; we’re not limited to what comes out of the ground
- Ongoing research continues to improve product performance
- We understand the unique challenges of glass manufacturing and know how to adapt
Applications
Multiple glass silica grades and aplite grades available to enhance performance in a wide array of glass applications, including:
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