
Ravi Patel
Project Manager, Arihant Infra
Rated 4.5 out of 5
Water pump bearing on a dewatering system, running 24/7 during monsoon. Shaft seal leaks. Water into bearing housing. Lithium grease emulsifies — milky, loses load capacity. Bearing fails at 2 AM when pump needed most. Emergency replacement: ₹15,000-25,000 including desperation premium.
Calcium grease repels water instead of mixing with it. Same bearing, same monsoon — maintains structure under continuous water exposure.
Calcium: Water-exposed outdoor equipment, pumps, marine, monsoon sites, chassis wading through floods.
Lithium (AP3/MP3): Indoor/covered equipment, temperatures above 110°C, applications needing EP additives.
Trade-off: Calcium handles water better. Lithium handles heat better. Below 100°C + water = calcium. Above 100°C + dry = lithium.
| Application | Why Calcium |
|---|---|
| Dewatering pump bearings | Submerged shaft, constant water |
| Marine winch bearings | Saltwater spray |
| Piling rig at water table | Mud + water slurry |
| Vehicle chassis (monsoon) | Wading through flooded roads |
| Exposed gate hinges | Rain directly on hardware |
| Outdoor conveyor idlers | Rain + wash water |
| Pack Size | Best For |
|---|---|
| 1 kg tin | Single pump, trial |
| 5 kg bucket | Small site, monsoon stock |
| 18 kg pail | Multiple machines quarterly |
No minimum order. First order prepaid.
Same-day dispatch for orders placed before 2 PM. Mumbai: evening delivery. Navi Mumbai / Thane: next morning. Pune / Nashik: 2-3 days.
Q: Calcium vs lithium grease?
Calcium: superior water resistance but max 100°C. Lithium: higher temps (130°C) but washes out in heavy water. Choose by whether water or heat is the bigger enemy.
Q: Can I mix calcium with lithium?
No. Chemically incompatible. Mixing causes drastic softening — loses load-carrying ability. Purge old grease completely before switching.
Q: Good for wheel bearings?
Only if vehicle regularly wades through water. For normal road use, lithium MP3 is standard. Calcium's lower heat tolerance is a problem at highway speed.
Q: When to switch from lithium to calcium?
Start of monsoon (June). Switch back after monsoon (October) if heat matters. Many Mumbai sites run calcium year-round on exposed equipment.
Q: Food-grade applications?
Our standard calcium grease is not food-grade certified. Specific food-grade grease needed for food processing.
Supplied to construction sites, pump operators, and marine facilities across MMR.