Vacuum Bagging Basics: How to Get Started (Complete Guide)

Vacuum bagging is a great technique for consolidating FRP laminates, reduce voids, improve fiber-to-resin ratios, and achieve superior composite strength—especially on complex surfaces. WEST SYSTEM Technical Advisor Don sets up a simple composite panel using WEST SYSTEM Epoxy to demonstrate: ● What vacuum bagging is and how it works ● Key setup considerations for wet layup composite laminates ● The purpose of sealant tape, release fabric, perforated film, breather fabric, and vacuum bag film ● How to properly install each vacuum consumable ● Tips for pleating the bag and sealing it air-tight ● Best practices for applying WEST SYSTEM Epoxy and fiberglass layups ● The role of different vacuum pumps (diaphragm, rotary vane, and venturi) ● How to achieve optimal pressure: 10–15 inches of mercury (Hg) / ~5–7 psi Whether you're working on marine repairs, composite panels, or just getting started with vacuum bagging, this detailed demonstration will help you get professional results. 📘 FREE RESOURCE Download our Vacuum Bagging Techniques Manual at: https://www.westsystem.com/instruction/instruction-manuals/vacuum-bagging-techniques/ 🧰 Vacuum Bag Kit & Supplies All vacuum consumables used in this video are available in the WEST SYSTEM Vacuum Bag Kit: https://www.westsystem.com/product-categories/vacuum-bagging-supplies/ 👍 Like the video if you found it helpful 🔔 Subscribe for more epoxy tips and tutorials 💬 Have questions? Drop them in the comments or call our tech support team—we're here to help! #westsystem #vacuumbagging #compositematerials #diyboatrepair #epoxytutorial #fiberglass #epoxyresin