NMFC 50095 – Boiler Sealing Compounds | Class 55–65

To find the correct freight class for your shipment:

1. Confirm packaging as drums, metal cans, or boxes and seal tightly. Line boxes with poly and absorbent pads; mark This Side Up to prevent seepage.
2. Weigh each handling unit including pallet to choose the correct weight-based class within 55–65. Heavier consolidated freight typically rates closer to Class 55.
3. Palletize securely: keep drums upright with chocks, strap and stretch-wrap, and shield closures. Avoid temperature extremes that can thicken or soften compounds.
4. State the commodity clearly as “Compounds, boiler sealing” on the BOL, list container type, and note non-hazardous. Attach an SDS if requested by the carrier.

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

• Weight-based classification (no density math) speeds quoting and reduces reclass risks.
• Consolidating into heavier pallets can qualify for lower classes near 55, cutting per-cwt costs.
• Non-hazardous status broadens carrier options and avoids hazmat surcharges and paperwork.
• Leak-proof, compliant packaging lowers OS&D claims, minimizing delays, reships, and customer downtime in plant maintenance.