Bondo® Extreme Metal Reinforced Filler EF-PT-ES, 15 oz (425.24 g), 8 per case

The Ease of Bondo® Filler, With Extra Strength
For auto and home repairs that require extra strength without the extra time and effort, our Bondo® Metal Reinforced Filler combines the fast, easy mixing and spreading of traditional body filler with exceptional strength. This simple 2-part filler is reinforced with aluminum — great for use on fiberglass, metal, aluminum and even wood or masonry.

Metal Reinforced Filler includes a small tube of hardener. It mixes quickly, spreads and layers easily into sanded repair areas and affords a working time of up to 5 minutes, and it dries in as little as 20 minutes for fast, easy repair. Like metal, the fully cured filler is strong enough to be drilled, tapped into or anchored — great for cosmetic repairs to auto parts such as frames, pillars and outer rocker panels, auto restoration and more.

Bondo® Extreme Metal Reinforced Filler instructions:
Step 1: Clean all surfaces with soap and water followed by a low VOC compliant cleaner. Allow to dry.

Step 2: Sand the damaged area with 80 grit sandpaper or a 36 grit disc to remove all paint, primer, and rust down to the substrate to be repaired. Sand 1-2 inches beyond the damaged area. Clean again with a low VOC compliant cleaner.

Step 3: Remove the cap from the liquid hardener tube and using a push pin, press a hole into the dispensing end of the tube.

Step 4: Open the can of Extreme filler and stir the contents gently. Place a 3-inch diameter puddle of filler onto a clean, non-porous mixing surface. Add 35 drops of the liquid hardener to the puddle of filler. Using a plastic spreader, make a gentle stirring and folding motion to mix thoroughly for about 1 minute. When product is mixed, the working time is 3-4 minutes. Do not add hardener directly into the filler container.

Step 5: Spread an initial thin layer of the mixed filler over the repair area using firm pressure to ensure maximum adhesion. Apply additional layers of filler as needed. Allow filler to cure 20 minutes before finishing.  Allow filler to cure overnight if drilling and tapping is required.

Step 6: Rough shape the filler with 80 grit sandpaper. Finish sand with 180 grit and finer.  Featheredge the repair.  Wait 45 minutes and apply 2-3 coats of primer to cover the repair area.

Step 7: Apply Bondo® Glazing and Spot Putty to fill in small imperfections and re-prime with 2-3 coats. Follow paint manufacturer’s recommendation for priming and final finishing.

For best results apply at 45°F (7°C) or above. Do not put mixed filler back in the can. Clean tools with acetone. Help line: 1-800-494-3552 

Use During the Fill Stage of the 3M™ Body Repair System
Even a small repair can seem complex at first. So 3M's Body Repair System simplifies the entire automotive body repair process by dividing it into four stages:

Stage 1 — Prepare. This stage includes pulling dents, removal of paint and rust and efficient, effective masking of the area.

Stage 2 — Fill. This stage involves patching holes with reinforced filler and smoothing and shaping filler before painting.

Stage 3 — Paint. This stage includes painting the area and blending and smoothing primer and paint.

Stage 4 — Finish. The final stage for showroom-grade results: removing small defects, sealing and polishing clear coats and other painted surfaces.

3M supplies premium products such as abrasives, tapes, body fillers and tools for every stage. This system helps you work easily, efficiently and successfully across the entire body repair process.

For Auto and Home
Our Bondo® Metal Reinforced Filler (PDF, 153.25 Kb) is fully sandable and accepts standard primers and auto paints. It is suitable for a range of repairs to metal surfaces that don't require painting. And unlike metal, the filler won't rust over time. So it stays strong and stable whether it's primed, painted or left bare.

Better Science for Better Repairs
As a brand of 3M, Bondo® is well known among collision repair professionals and others who are committed to helping you restore the beauty and value to the vehicles you own. Combining the easy use of traditional filler and the strength and appearance of metal, our Bondo® Metal Reinforced Filler is another way that 3M applies science to life — and helps you rediscover the excitement that well-maintained homes and vehicles bring to you.