NMFC 50185 - Foundry Sand Treating Compounds | Class 55-65

To find the correct freight class for your shipment:

1. Confirm the correct weight break to determine whether your shipment bills at Class 55 or 65, and list NMFC 50185 with the chosen class on the BOL.
2. Use strong corrugated boxes with sealed inner bags or liners to contain powders or granules; palletize and stretch-wrap to prevent sifting and loss.
3. Protect from moisture—add desiccants for hygroscopic binders and mark cartons “Keep Dry” to avoid clumping and product degradation in transit.
4. State the exact product name (foundry molding sand treating compound, non-hazardous), box count, and accurate net/gross weights to reduce reweighs or reclass.

Note: All classifications are subject to Item 170. Verify with official NMFC publications for the most current requirements.

• Low classes (55–65) keep CWT rates competitive for dense mineral or binder blends, helping control LTL spend.
• Weight-based rating can reward consolidation—larger, single-lane moves may qualify for the lower class and better per‑pound pricing.
• Non-hazardous status avoids hazmat surcharges and paperwork, widening carrier options and shortening tender times.
• Standard boxed packaging improves dock flow and reduces OS&D risk, lowering claims exposure and chargebacks.