Nephras application in the car requires an accurate understanding of the type of solvent, since an error in the choice of labeling can lead to the dissolution of rubber seals or damage to the paint coating. Many motorists confuse this product with gasoline or acetone, which often ends in damage to plastic elements of the cabin or corroding paint on disks. Proper use solvent allows you to effectively remove bitumen, technical fats and traces of sealant without aggressive effects on metal and glass, if the application technology is followed.
The use of this substance in garage conditions is widespread, but not everyone knows about its ability to quickly evaporate without leaving a greasy film, which is critical when preparing surfaces for gluing or painting. Unlike in the past. White SpiritA scent that dries longer and has a sharper smell, nephrases of certain brands work more delicately and faster. That is why professional masters of body repair prefer this class of solvents for the final processing of parts before applying primer.
Main areas of use in body repair
The process of preparing the body for painting begins with a thorough cleaning of the surface from technical oils, silicones and polishing pastes, and here naphrase C4-155/165 He has proven himself to be the perfect degreaser. It is used to remove the residues of wax after washing and polishing, since it does not react with the metal and quickly evaporates, without requiring additional drying. When working with archetypal Surface cleanliness is a key factor, and the use of inappropriate means may lead to the peeling of paint in the future.
When removing bitumen spots on the rapids and arches, the solvent is applied to the rags and gently wipe the contamination, avoiding intense friction so as not to damage the lacquer layer. After removing the contaminants, the surface must be wiped with a dry clean wipe to remove the remains of dissolved bitumen.
In the process of body repairs, there is often a need to clean the tool from fresh paint, varnish or putty, and here is also indispensable. solvent. Hands, rollers and spray guns are washed quickly and efficiently, which prolongs the service life of expensive equipment. However, for dried paint, the efficiency can be reduced, so it is better to clean the tool immediately after the work is completed.
⚠️ Note: Do not use nephras to clean plastic cabin elements or optics, as it can cause clouding of plastic or destroy the structure of polycarbonate headlights.
Safety technique during bodywork
Work on degreasing the body must be carried out in a well-ventilated room or on the street. Solvent vapors are heavier than air and can accumulate at the bottom of the garage, creating an explosive concentration. Make sure to use a respirator and protective gloves.
Maintenance of the engine and running gear
In the engine compartment application solvent justified if necessary, cleaning metal surfaces from oil and antifreeze flows before conducting a diagnosis or replacing the osteoils. The clean surface allows you to quickly detect the source of the leak and qualitatively degrease the installation site of the new seal. Mechanics are often used Nefras C2-80/120 for washing metal parts of the engine, removed for defects, as it perfectly dissolves the products of wear and soot.
When servicing the chassis, the solvent helps to clean the threaded joints of old lubrication and dirt before applying new anticorrosion compounds. Low-fat threads provide a more reliable connection and prevent corrosion under the protective lubricant layer. Also, the tool effectively removes traces of fuel oil and technical oils from the suspension elements, which is especially important before selling a car or passing a technical inspection.
- 🛠️ Effective cleaning of metal parts from old lubricants and soda.
- 🛠️ Degreasing surfaces before applying anticores and sealants.
- 🛠️ Removal of traces of oil from engine blocks and gearboxes to search for leaks.
- 🛠️ Filtering and washing of fuel system (metal only) nets.
It is worth noting that when hitting rubber hoses and pipes solvent It can cause them to swell or crack, so it should be applied point-by-point using a brush or rag. If the liquid still got on rubber products, they must be immediately washed with soap and water. Regular use of aggressive solvents on rubber elements reduces their service life.
Always check the reaction of the material in an inconspicuous area before fully treating the surface.
Working with Electrical and Contacts
Unlike many other solvents, some grades of nephras, such as Nefras A-120 "Galosha"They are highly purified and do not conduct electric current, which makes them suitable for maintenance of electrical equipment. They can clean the contacts of the relays, connectors and boards from oxides and contaminants, but only after disconnecting the battery. High volatility allows the substance to evaporate quickly, leaving no conductive layer.
However, it is worth being extremely careful with plastic housings of connectors and insulation of wires, as even cleaned solvent It can have a negative impact on some types of plastic. Before processing large areas, it is recommended to conduct a compatibility test. For cleaning sensitive electronics, it is still better to use specialized spray cleaners of contacts, which are guaranteed to be safe.
When restoring the efficiency of starters and generators, cleaning of the windings from oily dust and dirt is often required, and here the application of the solvent It gives you a great result. The parts are immersed in a bath with liquid or abundantly spilled, removing contamination with a soft brush. After this procedure, the unit must dry completely before assembly and installation on the car.
⚠️ Attention: It is strictly forbidden to use conventional brands of nephras for cleaning plastic cases of sensors and connectors - this will lead to their destruction and short circuit.
Removal of bitumen and resin stains from the body
Bitumen spots on the car body are not only an aesthetic problem, but also a potential source of corrosion if bitumen damages the paintwork under the influence of ultraviolet light. Nefras C4-155/165 It is one of the most effective means of combating such contaminants, as it chemically dissolves bitumen without requiring mechanical effort. It is enough to apply the tool to a napkin, apply to the stain for a few seconds and gently erase the softened mass.
For old spots, the procedure may need to be repeated several times, changing the napkin as it becomes dirty. It is important not to rub heavily so that the abrasive particles contained in bitumen do not scratch the varnish. After removal of the bitumen, the treatment site should be washed with water with shampoo to remove the residues of the solvent and bitumen mixture.
Tip: To remove bitumen, it is better to use lintless wipes so that the pile does not stick to the softened bitumen and does not scratch the varnish.
There are specialized “antisilicons” and bitumen removers, but they are often more expensive, and the composition is the same. solvent with a fragrance. Using a clean product is more cost-effective, especially if you need to process the entire car. The main thing is to observe precautions and not to let the liquid dry on the varnish.
Flushing of nozzles and fuel system
In professional services for ultrasonic cleaning of fuel injectors, special liquids are often used, but in garage conditions, nozzles can be used for primary washing of metal parts. Nefras C2-80/120. It dissolves well resinous deposits and lacquer plaque formed at the edges of the sprayer. The process involves immersing the nozzle in a solvent container and activating the ultrasound or simply soaking.
It is important to understand that this way you can wash only the metal part of the nozzle, having previously disassembled it and removed all rubber seals and electrical connectors. Rubber caps And the sealing rings under the action of the solvent are deformed and lose their properties, which will lead to air suction or fuel leakage. After washing, the parts must be thoroughly blown with compressed air.
For washing the fuel system without removing nozzles (by the method of strait through the ramp), you can not use ordinary nephras, since it does not have the necessary lubricating properties and can damage the fuel pump and pressure regulator. For such purposes, there are special chemical compounds added to the fuel tank or fed directly to the ramp. Homemade experiments with the fuel system can lead to expensive repairs.
⚠️ Warning: Never try to start the engine on a clean solvent for cleaning – this will lead to bullies in the cylinders and failure of fuel equipment.
Comparison of different solvent brands
Choice of specific mark solvent It depends on the task, as they differ in boiling point, evaporation and content of aromatic hydrocarbons. For example, Nefras A-120 ("Galosha") has a minimal aromatic content and is suitable for working with rubber and certain plastics, whereas Nefras C4-155/165 More aggressive and better handles bitumen and oils.
Below is a table that helps you navigate the main characteristics of popular brands:
| Marka. | Boiling point | Principal application | Smell. |
|---|---|---|---|
| Nefras A-120 (Galosha) | 65-85°C | Rubber, varnishes, paints. | Weak. |
| Nefras C2-80/120 | 80-120°C | Degreasing, flushing | Moderate. |
| Nefras C4-155/165 | 155-165°C | Bitumen, oils, fats | Strong. |
| Nefras C5-120/140 | 120-140°C | Painting materials | Sharp. |
When choosing a product in the store, pay attention to the packaging and labeling, so as not to purchase a surrogate or a mixture with a high content of gasoline. Quality solvent It must be transparent, colorless and free of mechanical impurities or water. The presence of sediment or turbidity indicates a low quality of the product or violation of storage conditions.
Safety measures and disposal
Work with petroleum-solvent refers to work of increased danger due to high fire hazard and toxicity of vapors. The vapors of these substances are heavier than air and can accumulate in lowlands, basements and observation pits, forming explosive mixtures with air. Smoking, using an open fire or sparkling power tool within the range of vapor is strictly prohibited.
When liquid enters the skin, dryness, irritation or dermatitis may occur, since solvent It washes away the natural fat layer. The work should be carried out in nitrile gloves that are resistant to the effects of petroleum products. In case of getting into the eyes, you should immediately wash them with plenty of water and consult a doctor.
☑️ Checklist of safe work
Disposal of used solvent and rags impregnated with oils and paints should be made in special containers for chemical waste. Pouring residues into sewers or soil is strictly prohibited, as this causes irreparable harm to the environment. The rags, soaked in oil and solvent, are prone to spontaneous combustion, so it should be stored in sealed metal containers before disposal.
Can I wash the engine with nephras?
Washing the engine whole, especially heated, is impossible because of the risk of fire. Individual metal parts can be washed, but you need to protect rubber pipes, wiring and plastic casings.
How to replace nephras at home?
For degreasing, you can use acetone (carefully with plastic) or a special degreasing agent. Kerosene is sometimes used to remove bitumen, but it dries for a very long time.
Does the nephras leave a greasy coating?
High-quality purified nephras (for example, "Galosha") does not leave a greasy coating and completely evaporates. Technical stamps can leave traces.
Is the smell of nephras harmful to health?
Yes, pairs belong to 3-4 class of danger. Prolonged inhalation causes dizziness, nausea and damage to the nervous system. Work is only in the respirator.
Can I store the nephras in a plastic bottle?
It is possible for a short time, but for long-term storage it is better to use special containers of metal or special plastic, since ordinary PET can be destroyed.