Foundry Bentonite Clay Molding-Sand Additive, Lump-Free Montmorillonite Powder, 400-Mesh Grade Enquiry
Direct factory support
Get a quote that fits your project
Send your drawing or product reference, material grade and required quantity. Relia will review the requirements with you.
- Drawing & specification review
Confirm the supply scope and critical requirements.
- Samples before custom production
Review inspected samples before approving a batch.
- Inspection documents
Agree material and dimensional records for your part.
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Product nameFoundry Grade Bentonite Clay Powder
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AppearanceGray White PowderApplicationFoundry
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ColorGray WhiteMOQ1 Ton
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Packing25kg/pp BagSiO2 Content55% - 65%
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Al2O3 Content15% - 20%Moisture Content≤12%
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MaterialNatural Montmorillonite
Foundry-grade bentonite clay is offered as a molding-sand additive in a gray-white, lump-free powder form. The material is natural montmorillonite, making the selected grade and its relationship to the existing sand system the starting point for a useful purchasing enquiry.
Choose the grading needed by the sand system
Specify whether the fineness request is for a 400-mesh grade or the nominal 100–325-mesh selection, then agree the actual supplied grading and particle-size distribution. Define the grading test method alongside the way the powder will be introduced into the foundry's mixing process, so the accepted supply matches the intended sand-system requirement.
Use the composition references for comparison
The stated composition ranges are 55–65% SiO2 and 15–20% Al2O3, with moisture at or below 12%. Use these references when comparing the requested material with the current additive, then define the batch information needed for incoming acceptance. Any required sand-performance targets should be tied to the buyer's own sand recipe and trial conditions.
- Identify the molding-sand system and existing additive grade.
- Specify the intended mesh grade and grading test method.
- Define moisture and composition acceptance requirements.
- Provide the trial quantity and intended production requirement.
- Agree the selected bag format and handling arrangement.
Connect the trial result to the supply order
A practical evaluation can compare the selected bentonite with the material already in use under the same mixing conditions. Record the accepted grade, packaging and batch requirements on the order so that a successful trial becomes a clear purchasing reference for subsequent supply.
