In detail: do-it-yourself repair of the hood insulation from a real master for the site my.housecope.com.
In winter, during severe frosts, every car owner is faced with the problem of prolonged engine start-up. The hood insulation will help partially solve the problem. Thanks to the additional thermal insulation, the car will cool down significantly more slowly, which will save on fuel when the car is warming up and increase the engine's operating life.
According to the laws of physics, everyone knows that the heated air rises rapidly, therefore, by installing a hood insulation with your own hands, you can exclude the rapid cooling of the power unit. Most modern products have a porous structure, due to which heat is retained for a long time in the car body.
Simultaneously with insulation, it is used as soundproofing of the hood
Few people understand the abundance of proposals from insulation manufacturers; it is especially difficult to determine the characteristics of a product by what the material is called or looks like. That is why, before purchasing insulation for the hood, you should first study its types and features.
The self-adhesive material is based on a polyurethane foam filler, which can be covered with PVC, PET, anti-adhesive film, textiles. The main advantage lies in the double effect, it helps to improve the sound and heat insulation of the car.
The approximate cost is 65-85 rubles / m2. It should also be noted that this option is tightly fixed on the surface of the hood and it is fireproof.
An excellent option for insulation under the hood, which is equipped with an adhesive base on the seamy side. The product consists of polyethylene foam with a petrol-resistant polyethylene terephthalate surface. The thickness of the canvas is 4, 8 or 15 mm, so the product, even without foil, copes well with keeping heat. Price - more than 230 rubles.
Video (click to play).
Tiviplen is used for thermal insulation of any car, regardless of modification. The coating does not absorb moisture and does not undergo decomposition; it can withstand temperatures ranging from -40 ° C to + 70 ° C.
As it is also called, penofol is made from polyethylene foam and covered with foil on one or both sides. Even if you paste over the car with your own hands with the thinnest coating, the level of heat retention in styzol will be much higher than analogues, since due to the reflective surface it provides the effect of a thermos.
This material does not accumulate or conduct electricity. It is characterized by increased elasticity, resilience and resistance to mechanical stress. Also, the product is non-flammable, it is considered moisture resistant, durable, environmentally friendly. It is not difficult to glue the hood with this material with your own hands, the sticky layer fixes the product well on a smooth surface.
Elastic insulation material with adhesive surface and foil coating. The thickness of the web is in the range of 3-10 mm.
But here it should be borne in mind that the larger the parameter, the higher the cost, and the price also depends on the number of foil layers. Prices start at 160 rubles per sheet.
The main advantage of this option is low cost and efficient heat retention. The price varies in the range of 50-200 rubles / m 2, this indicator is directly influenced by the thickness of the canvas.
If the car owner wants to install the insulation on his own, he must definitely study how to make high-quality thermal insulation of the car hood. To do this, you can watch a tutorial video or follow the step-by-step instructions.
First of all, you should prepare the necessary consumables and tools.In order to make insulation you will need:
thermal insulation sheet;
stationery knife;
roll paper;
felt-tip pen;
scissors;
Scotch.
Take measurements of the hood sections, transfer the data to paper. Be careful in the calculations, otherwise it will lead to an overuse of material or the need to create a new pattern.
On average, insulation of a car hood requires 0.6-0.7 m 2 of heat-insulating sheet.
Cut out the layouts from paper and sign so that you do not get confused during installation. Next, attach the blanks to the insulation and circle them with a felt-tip pen. Cut out the details according to the drawn shape.
The surface of the hood sections must be thoroughly washed with soapy water and dried, and then treated with a degreasing agent.
Gently stick the insulation parts according to the location. Remember, the use of adhesive in this process is not recommended, use only the material that is equipped with a sticky layer.
Rather time-consuming work, if the steps are performed correctly, will not take much time. On average, the insulation of the engine compartment takes no more than 30 minutes.
VIDEO: How to properly glue the insulation
Auto blanket is a woven insulation fabric that does not require preparatory work before use. The product is made of mullite-silica wool and facing textiles based on fiberglass.
To insulate the engine itself, use a car blanket
The advantages of a car blanket include:
environmental friendliness;
fire resistance;
soundproofing;
saving fuel resources during heating;
long operational life;
resistance to mechanical stress;
heat and sound insulation effect.
Despite a fairly large list of advantages, the product has a number of disadvantages:
relatively high cost;
small thickness at the joint with the hood;
reduced efficiency in the formation of cracks;
difficulties in selection and cleaning.
Warming the hood using a car blanket is considered the simplest method. It is enough to lay out the product in the engine compartment and hide all the cracks in the area of the joints.
When driving a car over long distances, the engine may overheat - the blanket completely blocks the exit of warm air.
After the insulation is installed, it remains to carry out the finishing touches - thermal insulation by closing the lattice.
Installing the radiator trim
For this purpose, you can use one of the methods:
the use of ordinary thick cardboard - an option is usually considered relevant for Gazelles;
installation of specialized radiator grilles, where there is a mechanism that closes the blinds;
installation of fasteners for the subsequent fixation of foil insulation.
Installation of thermal insulation should be carried out at a temperature of at least + 20 ° C.
If there is corrosion in the engine compartment, it should be pre-cleaned, covered with an anti-corrosion agent and paint.
It is very important to carefully fix the insulation on the surface so that, even during high-speed driving, it does not come off and fall into the rotating parts of the motor.
If climatic conditions change frequently in the region, care must be taken to ensure that the engine does not overheat on warm days. To do this, it is necessary to make regular stops and periodically open the engine compartment cover to allow cold air to flow to the power unit.
Whichever insulation is chosen, while driving, make stops and open the hood to release warm air
It is recommended to fix the thermal insulation under the hood with the possibility of its subsequent removal without harming the car.
Since the engine in the car runs on flammable fuel and has many contacts from the electrical wiring, you need to choose a fireproof insulation that does not accumulate electricity.
VIDEO: Experiment - is it worth insulating the engine compartment?