Legacy Drawings: Outdated Specs Materials & Drawings
How many of you have encountered Legacy Drawings?
They can be one of the challenges of inheriting files or starting at a new company.
Let’s take them one at a time:
Outdated Specs
When the specification itself—the standard, material callout, or process requirement that the drawing references—is outdated, it usually means the drawing cites a retired or superseded standard, such as MIL‑P‑19834 (the former adhesive‑backed foil plate specification, now replaced by MIL‑DTL‑19834C). In these cases, the material callout may no longer reflect current best practices, or the marking method may not meet modern durability or chemical‑resistance requirements. When our team encounters outdated specifications, we recommend modern, durable, and compliant materials and marking methods—such as those qualified under MIL‑DTL‑15024F, Type L (Metalphoto®)—to ensure performance under today’s environmental and lifecycle demands.
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Outdated Drawings
When faced with an outdated drawing that may be old, faded, or causing manufacturability issues, we can translate outdated terminology into current equivalents that match the same functional requirements and environmental expectations.
WNP applies proven manufacturing standards to ensure the part performs in today’s environment even when the original document doesn’t specify those details. Our 60 years of experience with environmental requirements, chemical resistance pitfalls, surface prep details, and adhesive performance equip us to deliver the right material and marking solution for your unique project. Our belief in the lean philosophy of Continuous Improvement challenges us to keep up with innovations in manufacturing.
CLICK TO READ ABOUT HOW TO AVOID NAMEPLATE FAILS IN THE FIELD
Outdated Materials
When it comes to Outdated Materials, WNP is a manufacturing expert that prioritizes durability, compliance and field performance. When we see a legacy material called out in outdated drawings, we identify potential fail points, including today’s solvents and degreasers, harsher UV exposure, higher temperature ranges and new compliance and readability expectations. When this comes to our attention, we offer modern equivalents to meet the same intent with improved durability
Modern materials like photosensitive aluminum for Metalphoto®, hard‑coat polycarbonates (Lexan), high‑performance polyester, advanced adhesives, and protective laminates eliminate the common failure modes of legacy materials such as fading, chemical attack, abrasion, and poor adhesion while meeting today’s durability and compliance expectations.
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Bottom line: If you inherit legacy specs or drawings, don’t hesitate to send them along; and, together, we will come up with modern solutions for your parts.
UPLOAD YOUR LEGACY DRAWINGS HERE FOR EVALUATION