Davis Reagent 2 Forensic Etchant PF-DAV2 | Rocky Mountain Reagents

Davis Reagent 2 Features

Formulated for precise metallurgical analysis, the Davis Reagent 2 provides exceptional surface preparation. Used primarily for restoring obliterated serial numbers, this distinct chemical formulation attacks the grain boundaries of specific metals. The resulting contrast allows forensic professionals to extract critical alphanumeric detail from challenging surfaces like firearms or engine blocks. Investigators rely on this targeted reagent to rescue intelligence that has been intentionally obscured.

Engineered for demanding crime laboratory workflows, the pre-mixed liquid requires precise application to maximize visibility. By integrating specialized acidic components, examiners achieve court-admissible visual enhancements even on heavily filed or ground metals. When incorporated into specific processing sequences, the chemical wash reveals the finest microstructural changes caused by original stamping. The fast-acting matrix demands careful monitoring to prevent over-etching.

To prevent sample destruction, investigators must carefully control the reaction time and neutralize the evidence thoroughly once the desired contrast is achieved. Maintaining proper handling ensures the delicate metallurgical structures remain intact. For optimal laboratory safety, this advanced chemical formulation should always be applied within a certified fume hood. Technicians must utilize appropriate personal protective equipment to prevent severe chemical burns.

Available Sizes and Configurations

Technical Specifications

Laboratory Applications

For specialized forensic environments, integrating this unique etchant is critical when processing recovered firearms from crime scenes. Crime scene investigators frequently encounter evidence where standard non-destructive methods cannot penetrate the altered layers. Because it selectively attacks the stressed metal beneath the obliteration, the solution is highly effective at rescuing difficult characters. Extracting usable intelligence requires a chemical approach designed specifically for the substrate alloy.

When processing metal evidence, the working solution is typically applied using a delicate swab method rather than complete submersion. Technicians gently coat the surface and allow the chemical reaction to proceed before aggressively neutralizing the excess reagent. Upon achieving optimal alphanumeric definition, the evidence is immediately photographed under oblique lighting conditions. This critical documentation step ensures maximum resolution before the metal oxidizes.

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Academic and Institutional Pricing

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Product Documentation

• 📄 Download Safety Data Sheet (SDS)

Frequently Asked Questions

What is Davis Reagent 2 used for?

This highly specialized forensic chemical is a metallurgical etchant designed specifically to restore obliterated, filed, or ground-off serial numbers on metal surfaces. It chemically attacks the stressed microstructures of the metal left behind by the original stamping process, creating visual contrast that reveals the hidden characters.

Does this product need to be diluted before use?

No, this formulation is provided as a ready-to-use working solution. Forensic technicians can apply this reagent directly to the properly polished metal surface using a swab, avoiding the severe hazards associated with mixing raw, concentrated acids in the laboratory.

Do I need to neutralize the metal after applying this etchant?

Yes, absolutely. Because this is a highly corrosive acidic mixture, failing to neutralize the surface after the serial number is recovered will result in the continued destruction of the metal and the permanent loss of the evidence. Technicians typically use a basic solution like baking soda and water to halt the reaction.