How To Heat Shrink Sheet Metal

Welding suppliers carry a wide range of temperature crayons that melt off the surface when your desired.

How to heat shrink sheet metal. This takes away some of the stretch. Get used to this idea and your abilities will grow. This works the other doesn t. If you need to shrink in the center or where you can t get a shrinking tool in you must heat shrink either with a torch or a shrinking disc.

Propane can do the same thing although it is a much more crude method. Heating up metal and throwing cold water on it may shrink it a tiny bit but it makes distortion and hard steel. In this very short video i will show you how to repair shrink sheet metal and stiffen body panels the easy wa. Why not just heat it and gently hammer the swell down.

Need a fix for oil canning auto body panels. Do not over heat the steel. It certainly does however eventually make the metal brittle and unworkable so make sure to heat and shrink enough the first time if you use a wet rag to cool. Alternatively you can try hammering off dolly to move the metal around a little to where it needs to be.

At 550 degrees f you can shrink the aluminum without affecting the temper or hardness. Usually you can get away with a few small shrinks before the metal starts to work harden too much. Once red hot quickly work the area with hammer and dolly to gather the metal into the centre of the cherry then deliver a swift blow to the centre of the heat shrink to push the metal back into itself. A common recommended fix is to use oxy acetylene heat to create a localized hot spot that bulges the metal above the mean surface of the panel.