Workbench Stories Part 5: The DIY Wipe-On Poly Experiment (StewMac T-Style Kit)

Welcome back to the workbench! In Part 5 of the StewMac T-Style Guitar Kit build, we hit a bit of a scheduling snag—my Tru-Oil is days away, but I’m too excited to wait. Today, we are getting experimental with "Stewie" (our mahogany body) by crafting a homemade wipe-on poly finish. Watch as I mix a custom 50/50 blend of polyurethane and mineral spirits to try and achieve that smooth, professional look. Things get a little dicey when the sandpaper comes out, leading to a "sanding fiasco" that forced me to pivot. I’ll show you how I saved the finish by creating a secret "triple-threat" concoction of Poly, Mineral Spirits, and Gunstock 231 stain. Whether you're a seasoned builder or a beginner like me, this episode is all about the "Proof of Human"—making mistakes, learning on the fly, and finding a winning strategy when things go sideways. In this video, you’ll see: How to mix a DIY wipe-on poly using household shop supplies. The dangers of sanding too aggressively with 400 grit on a fresh finish. My "Secret Formula" for a tinted wipe-on finish to fix bare wood spots. Tips for using a "dapper" applicator for better product control. Timestamps 0:00 - Guitars, Life, and "Stewie" the Mahogany Body 1:05 - The DIY Plan: Mixing 50/50 Poly & Mineral Spirits 2:42 - Syringes and Guacamole Bowls: The Science of Mixing 4:10 - A Message of Encouragement for the Community 6:50 - First Application: Circular vs. Straight Strokes 9:15 - "Did I wipe it all off?" - The Poly Struggle 10:39 - Making a Custom "Dapper" Applicator 14:15 - The Syringe Mix-up (Label your tools, folks!) 19:24 - Calling it "Coat 1.5" 20:36 - The 400 Grit Sanding Fiasco 23:43 - Disaster Recovery: Assessing the Bare Wood 25:44 - The Secret Formula: Poly + Stain + Spirits 28:35 - Winning Strategy: 6 Coats In and Feeling Good 30:45 - Next Steps: Moving to the Front of the Body ____ Checkout our playlist page for more series and journeys https://www.youtube.com/@TedTalksGuitars/playlists Special Thanks to our channel members "The Jacks" Want to support the channel? Feel free to explore Channel membership options: https://www.youtube.com/channel/UCBr6kaWeOvldTHvntB3tnMg/join Ted Talks Guitars & Life Merch Store: https://tedtalksguitars-shop.fourthwall.com/ Amazon Affiliate Link: https://amzn.to/3W3PZox *If you click on this link to shop at Amazon the channel will receive a modest financial commission from your purchases. Guyker Referral Link: https://www.guyker.com/?ref=tedtalksguitars If you use the link you will save 15% at Guyker Use the coupon code: TEDSMITH #GuitarBuild #StewMac #WipeOnPoly #DIYGuitar #LuthierJourney #WorkbenchStories #TelecasterBuild #GuitarFinishing #MahoganyBody #TedTalksGuitars