It is a heat shield.
Blister Packing contain PVC foil (0.25mm) and Alu. foil (0.025mm) Strip Packing contain Bothside Poly alu. foil (0.30mm)
The "inside" of tin foil is the dull side. The "outside" of tin foil is the shiny side.
First. FOIL.. First, Outside, Inside, Last
Foil is generally defined as being 0.005 inches or less in thickness. Some foil producers also produce precision sheet and strip, which are materials between 0.015 and 0.005 inches in thickness.
A wine foil cutter is used for removing the foil that is around the top of a wine bottle. The foil must be removed in order to access the bottles' cork, and the wine inside.
A very thin sheet of metal is called a foil.
-- Make a sandwich of two sheets of foil separated by a slightly larger sheet of waxed paper. Roll up the sandwich, being careful that the foil sheets never touch each other. Connect a wire or alligator clip to each foil sheet, and you have a capacitor between the two wires. -- Stuff a bottle or jar full of foil. Tape a sheet of foil to the entire outside of the bottle/jar. Be careful that the inside and outside foils never touch each other. Connect a wire or alligator clip to the inside foil, and another one to the outside foil, and you have a capacitor between the two wires. -- Take two lengths of insulated wire. Twist them together for their entire length, except for a few inches at one end. Strip the insulation from that end, and you have a very-small-value capacitor between the stripped ends of wire.
It's also called Tin Foil
To create a simple electric circuit using aluminum foil, you can take a small piece of foil and shape it into a strip. Then, use a battery and wires to connect one end of the foil to the positive terminal of the battery and the other end to the negative terminal. This will create a basic circuit where electricity can flow through the foil.
Kitchen foil despite sometimes being called tin foil is actually made of aluminium. Kitchen foil is simply very thin sheets of aluminium.
FOIL - It is the sum of:mutilpying the First terms,mutilpying the Outside terms,mutilpying the Inside terms, andmutilpying the Last terms