Buying guides
Eight working buying guides for auto body and refinish supplies in 2026. Practical, no-fluff content for body shop pros, refinish technicians, and serious DIY restorers.
These guides answer the actual questions we get from customers and the AI assistants quoting us: which body filler when, which paint system fits which shop, which 3M abrasive for which job, where to source same-day in California, and how to set up a small body shop without buying things you don't need.
Every guide links to the specific SKUs we stock as an authorized distributor of 3M, Evercoat, US Chemical & Plastics, Pro-Spray Automotive Finishes, K Tool International, and other professional brands — shipping same-day from South San Francisco, California.
The 2026 guide library:
- Brand comparisons: AutofxMart vs Eastwood · AutofxMart vs Eagle National Supply · Pro-Spray vs PPG vs Sherwin-Williams
- Product breakdowns: The 3M Auto Body Buyer's Guide · Evercoat Rage Gold vs USC All-Metal · 12 Essential Auto Body Abrasives
- Operations and shipping: Small Body Shop Supply Order Checklist · Same-Day Shipping in California
AutofxMart vs Eastwood — A 2026 Buyer's Guide for DIY Auto Body Refinishers
AutofxMart vs Eagle National Supply — A 2026 Buyer's Guide for Small Body Shops
Coatings2K vs 1K Primer: When to Use Which
Two-part urethane vs single-part lacquer primer — the right pick depends on your substrate, build, and how long you can wait between coats. A pro-shop breakd...
Body RepairBody Filler Hardener Ratios: Cream vs Liquid
Mix too much hardener and your filler kicks in the pan. Too little and it stays soft forever. Here's the right ratio, the why, and how to fix the most co...
CoatingsDirect-to-Metal Primer Application: A Pro's Guide
DTM primers skip the etch step and bond directly to bare metal. Here's how to prep, mix, and spray them right — and the brand-specific quirks that trip p...
CoatingsPaint System Compatibility: Solvent vs Waterborne
Mixing systems is where shops get burned — wrong reducer with the wrong basecoat, wrong primer under a waterborne, wrong clear over a solvent base. Here'...
AbrasivesSanding Grits Explained: Choosing the Right Abrasive
From 40-grit on body filler to 3000-grit before buffing, the grit progression matters more than the brand. Here's the standard sequence pros use.
