Bondo Vs Sheet Metal

A few decades ago this wouldn t have been an issue among street rodders.

Bondo vs sheet metal.

Many bodymen of the time were not sold on the idea of using plastic body fillers but over time it became apparent that the lightweight easy to use nature of body filler was a benefit over lead. Slowly and steadily pull the metal sleeve away from the sheet metal. Spread it out with a bondo spreader like you were laying mud allow it to dry and then remove the tape from opposite side and sand. 2006 pontiac gto adelaide 6 0 m6 k n cold air intake dual magnapacks deleted cats pcm tune jhp pro billet short shifter.

My car is complete however i am curious to know what you guys opinion of using bondo versus allmetal for body work like replacing sheet metal etc. So my plan is prime with a 2pack primer bondo bog it reprime then paint with lacquer. Many repair products do not properly adhere to galvanized metal. Any galvanized metal repair requires bondo ultimate.

The bondo brand name was created in 1955 just a few years after the use of lead body solder began to be prohibited. Panel bond is made to adhere to bare metal sometimes i will still spray it with epoxy primer first and sometimes not depending on a lot of variables with the job. An example of the application order on bare metal is. 1 bodywork including filler bondo 2 paint prep solvent 3 self etch primer 4 high build primer 5 basecoat 6 clearcoat.

Fiberglass versus steel bodies. Original steel bodies were easier to find and reproduction bodies were still a novelty. Car bodies are very rigid structures that don t have much if any expansion and contraction due to weather conditions. Not only does it adhere to galvanized metals but it is easy to mix easy to apply and provides for clog free sanding.

Like i mentioned before auto body filler is meant to behave much the same way as the metal chassis it is used to repair. Now that the metal has a bonded resin coating the vinyl ester will stick much better to the epoxy than the steel especially if the epoxy hasn t totally cured 7 days or so. If you are bored one day do a test patch on some scrap sheet metal. Accordingly bondo is a very stiff product when cured which makes it well designed for auto bodies.

Put magnetic tip of gauge against sheet metal. My sheet metal has been through my molasses bath washed with water then spayed with a phosphate type rust converter and is now a nice shade of black. As the name implies epoxy primer gives you excellent adhesion similar to applying epoxy glue while also sealing the bare metal from environmental elements. When the magnet lets go the reading of the barrel body at the edge of the metal sleeve is the paint and bondo thickness in mils.