Valence Seattle

8135 1st Avenue South Seattle, WA 98108

Valence Seattle

Valence Seattle, founded as MAPSCO in 1981, is the leader in the Pacific Northwest in processing small to medium sized precision parts for the aerospace industry. Valence Seattle sets the standard for on time delivery, customer service, and quality due to its relentless focus on quick and transparent communication, competitive and consistent turnaround times, and technical quality and processing expertise built over 35 years. Valence Seattle’s 32,000 square foot facility is located in the heart of Washington’s aerospace hub and offers full service NDT (penetrant and magnetic particle inspection, shot peen, aluminum and hard metal chemical processing, and paint services. Valence Seattle has earned the trust of leading aerospace manufacturers and we support primes such as Boeing, Goodrich (UTAS), Spirit Aerosystems, Northrop Grumman, Raytheon and more. Valence Seattle has 2 highly efficient process lines for titanium and steel and aluminum processing including chemfilm, type I, and type II anodize. We proudly process over 4 million parts per year, a testament to our 24/7 operation, lean manufacturing philosophy and state of the art MRP system with RFID tracking.


Square Footage



Parts Per Year


Processing Capabilities

Hardness/Conductivity Magnetic Particle Penetrant
Painting / Coatings
Bond Primer Dry Lube Fuel Tank Coating Prime and Topcoat Sol Gel
Additional Services
Abrasive Blast Glass Bead Part Mark Plastic Bead Blast Shot Peen
Chemical Processing Aluminum
Anodize – Boric Sulfuric Anodize – Type II Sulfuric Chemical Film – Type 1 (Bonderite 1200) Chemical Film – Type 1 (Bonderite 600)
Chemical Processing Hard Metals
Passivate Type II Passivate Type VI Phosphate Fluoride Titanium Etch (Pickle)

Significant Approvals



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