Non-Nitrosamine Accelerator System for Medical & Food Grade Rubber: TBzTD, ZDBDC & DPG-Free Formulations

Oct 16, 2026 Beihua

How to build a compliant cure for medical, food-contact and infant rubber goods without nitrosamine-generating accelerators.

The Regulatory Pressure

EU 2023/1462 and REACH restrictions push nitrosamine levels in rubber articles down to the low-ppm range. Traditional TMTD/TMTM and secondary accelerator DPG are under scrutiny.

A Practical System

Replace thiurams with TBzTD-70 (a non-nitrosamine alternative) and ZDBDC-80 for fast cure, and drop DPG in favor of primary sulfenamides such as TBBS-80.

TBzTD-70ZDEC(EZ)-80-75

Applicable Compounds

NR, EPDM and NBR seals, stoppers, tubing and baby-care items. Verify extraction values per ISO 10993 / FDA 21 CFR where required.

Trade-off to Expect

Scorch safety is usually improved, but the optimal cure rate needs rebalancing with sulfur and activator levels.

TDS / Technical Data Sheet

System components TBzTD-70 / ZDBDC-80 / TBBS-80
TBzTD active content 70% min.
ZDBDC active content 80% min. Zinc dibutyldithiocarbamate
Carrier EPDM / SBR polymer
Appearance Yellowish to brown granules
Nitrosamine status Does not generate nitrosamine amines
Shelf life 12 months

SDS Highlights

Non-nitrosamine formulation. Avoid ingestion and prolonged skin contact. Use in well-ventilated areas and wear PPE. Comply with REACH (EC 1907/2006) and local food-contact material rules before end-use approval.

COA Sample

Batch No. NA25-0722
TBzTD assay 70.6%
ZDBDC assay 80.2%
Free amine < 0.3%
Nitrosamine test Not detected (< 2 ppm)
Result PASS

Product Information

Packaging 20 kg carton with aluminum foil bag liner; 800 kg per pallet
MOQ 200 kg (approx. 10 cartons)
Shipping port Shanghai Port / Ningbo Port, China
non-nitrosamine accelerator medical grade rubber chemical food contact rubber REACH DPG free curing

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