Foundation-Grade Sodium Bentonite Powder. Provides reliable slurry support for piling, diaphragm wall, and foundation works.
WG Bentonite Powder is used as a base component for civil drilling fluids, typically forming a thixotropic suspension that helps support borehole walls during bored piles, diaphragm walls (D – walls), and other foundation works.




Improves bore stability with reliable thixotropic behaviour under varying ground conditions.
Delivers more consistent slurry behaviour for predictable performance on site.
Works with combined bentonite + polymer approaches when the project specification requires it.
Typical values actual parameters may vary by grade. Request TDS for project-specific data.
| Parameter | Typical Value |
|---|---|
| Appearance | Fine, free-flowing powder |
| Color | Light grey to cream |
| Montmorillonite Content | ≥ 85% |
| Moisture Content | ≤ 12% |
| Liquid Limit | ≥ 350% |
| Swelling Index | ≥ 24 ml/2g |
| pH (5% suspension) | 9.0 – 10.5 |
| Sand Content | ≤ 4% |
| Marsh Funnel Viscosity (6.5% w/w) | ≥ 35 sec/qt |
| Plastic Viscosity | ≥ 10 cP |
| Yield Point | ≥ 15 Pa |
| Filtrate Loss (API) | ≤ 15 ml / 30 min |
Suggested field monitoring values for bentonite drilling slurry during operations.
| Parameter | Recommended Range | Method / Note |
|---|---|---|
| Marsh Funnel Viscosity | 32–50 sec/qt | Before each pour |
| Density | 1.02–1.10 g/cm³ | Mud balance check |
| pH | 8.5–11.0 | pH meter or strips |
| Sand Content | < 4% | API sand content kit |
| Filtrate Loss | < 25 ml / 30 min | API filter press |
| Gel Strength (10 min) | ≥ 4 Pa | Viscometer reading |
Premium Grade / High Yield Drilling Bentonite
Standard Grade Drilling Bentonite
Available in 25 kg and 50 kg multi-wall paper bags or HDPE bags as per requirement.
Store in a cool, dry area away from moisture. Keep bags off the ground on pallets. Avoid exposure to rain or standing water.
12 months from date of manufacture when stored in original sealed packaging under recommended conditions.
PSU/EPC Requirements
We support project-specific compliance needs with required documents and references (as applicable to tender/specs).
TDS / MSDS available on request
Compliance support (BIS / project specifications) where applicable
Technical assistance (parameters & guidance) and an enquiry-first approach (recommendation → documents → quotation)
Quick answers to common queries about our products and services
Yes – premium high – yield (WG MUD) and standard grade (WG BENT 500) options are available based on specification needs.
Yes, it is compatible with polymers / hybrid fluid systems where the project requires combined performance.
Yes – TDS/MSDS and documentation support is available on request, aligned to project/tender needs.
Share your project type + ground condition + quantity timeline-our team will recommend the right bentonite grade (and polymer compatibility if needed) and call you back.