# K994027: Activator Paste

- Pathway: 510(k) (Traditional)
- Applicant: Harry J. Bosworth Co.
- Decided: Apr 13, 2000 after 139 days
- Product code: ELW (Material, Impression)
- Device class: 2
- Regulation: 21 CFR 872.3660
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
No later device cites it as a predicate yet.
0 of 1 device in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Indications for use
Paste catalyst is used with a condensation-type silicone base paste or putty as a dental impression material to reproduce a patient’s teeth and gums, and to provide models for study and for production of restorative prosthetic devices. The paste catalyst causes the base material to set.

Source page: https://510kreport.com/device/K994027
Methodology: https://510kreport.com/methodology