# Second degree heat (thermal) burns at Proto Precision Additive LLC
> OSHA SIR `2021042881` · 4/7/2021 · HILLIARD, OHIO
## Severity
- **1 hospitalization**
- **Body part:** Hand(s) and arm(s), n.e.c.
- **Nature of injury:** Second degree heat (thermal) burns
## Cause
- **Event:** Ignition of vapors, gases, or liquids
- **Source:** Hydrogen
## Employer
- **Name:** Proto Precision Additive LLC
- **Location:** 4113 Leap Rd, HILLIARD, OHIO, 43026
- **NAICS:** 332117
- **Jurisdiction:** 1
## Narrative

An employee swept loose aluminum powder dust from an air filter into a dustpan and poured the dust into a 55-gallon water-filled sludge drum. Additional water was poured on top of the aluminum powder floating on the surface when the resulting hydrogen gas ignited, causing second-degree burns on the employee's right forearm and hand.

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*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · MORVS · CC0 1.0*