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If there is a specific question that was not addressed here, feel free to shoot us an email at

How does Garrison Minerals price their products, particularly the Magnesium Hydroxide Slurry?

Magnesium Hydroxide whether in a liquid or powder form is still a solid material. Magnesium Hydroxide should ALWAYS be priced on a DRY WEIGHT basis. Magnesium Hydroxide priced on a per gallon or wet pound basis is misleading. The difference in dry weight on a 58% solution verse a 56% solution is 1,000 dry pounds. If pricing is given on a gallon basis with a total solids variance of 55% – 60% solution — the customer could be paying more for water and less for the actual product. ALWAYS request pricing on a DRY WEIGHT basis.

Does Garrison Minerals ship internationally and how much is it?

Yes, we do. We have shipped materials to every continent and have our processes down to a science. Please contact us, and we will provide you with options on how to receive the material.

International shipping rates vary with time and with the location. For us to get you the most accurate answer to this question, please contact us and we will gladly send you a CIF port or door quote.

How much is shipping within the United States?

Shipping depends on several factors, including the size of your order, the distance of shipment, and insurance options. Please note that we will do everything we can to pick the safest, most cost-efficient shipping method for your situation so that you get your product as quickly as possible for as inexpensive as possible.

Can I test the material before placing a larger order?

Absolutely, many of the products are kept in stock and 200g samples can be sent free of charge (US only) for testing and analysis.  Garrison Minerals can also set up and perform a larger scale trial for industrial applications.  International customers, don't worry!  We will send you a sample too with prepaid shipping.   Request your sample here!

What is Garrison Minerals' privacy policy?

Review Garrison Minerals' privacy policy here.

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