This hot air gun is designed exactly like a hair dryer, with the difference, very important: it blows an air heated to 600° C. (Non contractual photo, does not necessarily reflect the drawing)
It is very versatile and easy to handle. Its primary destination is the stripping of old layers of paints. More practical and less dangerous than a torch, it is more efficient than this when the support of the paint is wood because it is not likely to burn it.
Other areas of application are bending and butt welding of plastic pipes, drying of painted surfaces and the unblocking of the screws. It is used whenever a source of heat is needed: warming of frozen water pipes, heating of wood pieces during a traditional hot gluing, warming of glue underlayment for the restoration of furniture etc....
Characteristics of the heat gun
The body of the device is made of plastic with high thermal resistance. The revolver handle below, is equipped with a trigger switch. The air inlet is from the rear of the housing. The metal tip contains the heating resistor and receives the nozzle. The hot air gun is characterized by the maximum flow of hot air which is of the order of 400 dm3/ s, and whose temperature is adjustable (from 100 to 600° C).
A thermostat device automatically stabilizes it for each selection made. The device is a strong consumer of energy (power of about 1600 to 2000 W). It is quite light (500 to 600 g), which makes it very manageable.
The heat gun is versatile as long as it has an assortment of nozzles for different types of work.
The manufacturers deliver with the device or offer a wide range of nozzles:
- round nozzle, it produces a concentrated air stream and can be used to unscrew screws or to strip small parts;
- deflector nozzle, she directs the heat stroke on one side; it is suitable for heating plastic pipes for bending;
- flat nozzle, it blows a wide jet that can strip large painted surfaces;
- vitro-protective nozzle, it is equipped with a protective screen and is used to strip the wood from the windows without risking the breakage of the windows by the effect of the occasional expansion of the glass.
Some manufacturers offer judiciously in accessories a assortment of knives suitable for stripping paints: The knife handle receives blades for working flat, angled, and concave or convex surfaces.
Use and security
Start by setting the heating power. Ordinary guns usually have two positions (300 and 500° C) while electronic models have a dimmer that offers all possibilities between 100 and 600° C. Average temperature is required for fragile materials such as wood, glass or plastics.
High temperatures are reserved for metal stripping. To strip the paint, bring the barrel of the gun near the part and start. The air heats up very quickly.
When the painting starts to blister, turn the barrel of the gun to another part of the surface and remove the layer with a painter's knife. It is necessary to make several passes on parts coated with many layers of paint.
The heat gun is not dangerous. However, we must be careful not to direct the hot jet on the skin. Above all, do not use plastic household gloves but construction gloves. And as for the majority of DIY materials, do not leave it within reach of children because its similarity with a hair dryer can then have very serious consequences...
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