1968-1982 C3 Vapor Barriers – Inner Door Moisture Protection Kit
OEM-Style Moisture Barrier Protection for Your C3 Restoration
Protect your interior from hidden moisture damage with this pair of precision CNC-cut Vapor Barriers from Performance Choice™, a Mid America Motorworks brand. Designed to fit all 1968–1982 Corvette C3 models, these .38mm poly vinyl moisture shields replicate the original factory material and install cleanly behind your door panels to prevent moisture from reaching carpet and trim.
Whether you’re completing a restoration or preserving an original interior, these barriers help block water intrusion from inside the door shell—preventing rust, mildew, odors, and interior degradation over time.
Because Details Matter
• Fits all 1968–1982 C3 models
• Sold as a pair for driver and passenger doors
• .38mm poly vinyl matches original barrier thickness
• CNC cut for precision fit and easy installation
• Protects interior from rust, mold, and musty odors
• Ideal for restorations and preservation
Dimensions and Weight
• .38mm thick poly vinyl
• Pre-cut for direct fit behind door panels
Tech Notes
• Made in the USA
Maintain the integrity of your C3’s interior with these factory-style vapor barriers—an essential step in moisture control and long-term preservation.
Also known under these part numbers: (For reference only)