How to remove paint with a scraper?

Mechanical cleaning of the surface from paint is the easiest and most technically affordable way to remove old coatings. To remove paint, you can use a wide arsenal of technical means. For example, you can work with a scraper to remove paint. A faster and more efficient way to remove paintwork is to use electrical equipment.

Content:

• Features of mechanical cleaning
• Surface preparation
• Tool types
• Hand tool
• Power tool
• angle grinder
• Hammer drill
• Electric drill
• Building hair dryer

Features of mechanical cleaning

It is far from always necessary to remove an old coat of paint before applying a new one. Much depends on the properties of both the old and the new paintwork. If adhesion is achieved without removing the coating, there is no need to spend effort on machining the material. The best adhesive qualities are water-based compositions that can hold on almost any surface.

If reliable adhesion of materials cannot be ensured, removal of the old coating cannot be avoided. You will also have to remove the old paint if you plan to level the surface, since the leveling mixtures practically do not stick to painted materials.

To establish a kind of old paint is not difficult: just try to pick a piece of the coating. Water-based paint and varnish coatings chip off quite simply. Oil paint will be more difficult to remove.

From the point of view of labor costs and the choice of a suitable tool, the determination of the material of which the base is made is of great importance. For example, paint removal from sandy plaster is a simple task, but it is much more difficult to remove the coating from concrete.

Surface preparation

Before starting the removal of paint, it is necessary to prepare the workplace. The nearby space will be heavily littered during work, so we do the following:

1. We remove all the furniture from the room;
2. If some items are too large and cannot be removed, cover them with polyethylene;
3. We cover the floor with plastic wrap, but do not just lay it on the surface, but attach it to the baseboards with tape.
4. We put on a respirator, goggles, rubber gloves and an apron.

Tool types

Mechanical cleaning can be carried out by two types of tools: manual and electric.

Hand tools include:

• scraper;
• putty knife;
• ax;
• hammer;
• chisel;
• chisel.

Applicable electric tool:

• a grinder with an appropriate nozzle;
• hammer drill;
• building hair dryer;
• electric drill.

The greatest effect is obtained by the use of a power tool, especially a grinder (grinder) or a perforator. Both tools can be supplied with several types of nozzles, including:

• wire brush;
• grinding wheel;
• abrasive;
• scapula;
• Boer.

Below we describe in more detail the features of the application of certain types of tools.

Hand tool

Most often, the following types of tools are used to remove paint:

1. Ax. This well-sharpened device creates notches on the paintwork. Then, the formed recesses are abundantly wetted with water, which, penetrating the coating, softens it. Swollen peeling paint can be easily removed with the same ax.
2. Hammer and chisel. The easiest, but also the most time-consuming way to remove old coatings.
3. Scraper. This manual fixture is often used to remove paint. However, if there are several layers or if we are talking about an old thick coating based on oil paint, the scraper will not help, and more advanced methods will have to be used.

Power tool

The use of electrical equipment significantly reduces labor costs and time for work.

angle grinder

Angle grinder (colloquial name - Bulgarian) allows you to remove the paintwork due to the use of special nozzles. The nozzle is a brush with very stiff metal wires. In working condition, the circle of the grinder develops a speed of up to 10 thousand revolutions, which ensures high-quality removal of the paintwork.

Advice! Do not take too large a nozzle, as there is a risk of breakage of the grinder. In addition, working with a large nozzle is unsafe. It is better to get a small nozzle.

You can also opt for an emery grinding wheel. The abrasive is attached to the nozzle using special Velcro. The optimal grain size of the skins is 80, but not less than 40, since the fine-grained emery is quickly erased. Abrasive allows you to remove paint even from concrete surfaces. However, working with emery is fraught with the ignition of this abrasive material.

Note! When working with a grinder, the use of goggles is mandatory, since on the sides at high speed pieces of the removed paintwork material fly apart.

Hammer drill

This type of electrical equipment copes well with the mechanical removal of old or thick coatings, but it has a very important drawback in some situations - high noise.

The device is equipped with a special nozzle - a spatula, which allows to repel not only paint, but also a layer of plaster. Moreover, if you work carelessly, you can damage the base - even silicate brick or concrete. The performance of the punch depends on the complexity of the site, but on average you can process about a square meter or an hour and a half.

Electric drill

To clean the surface of paint, you can use an electric drill with an abrasive attached to it. Emery sheets are attached with Velcro. However, the method is not sufficiently effective.

Building hair dryer

In this case, the principle of operation is based on heating the coating, as a result of which adhesion is broken and the paint begins to peel off. Moreover, the paint layer must be removed immediately (with a spatula or scraper), without waiting until it cools down, otherwise it will be even more difficult to remove the paint in the future.

Note! When working with a hairdryer, you need to keep in mind the following circumstance: you need to know exactly where the wiring is located so as not to heat such places.

Working with a hairdryer is a very laborious process. And the layer of old putty cannot be removed like that. A building hair dryer is a solution rather for a small area, and in large spaces it is better to work with a puncher or grinder.

Mechanical cleaning is used both as an independent method and as an auxiliary method. Even with chemicals, a spatula is used, and if the paint is too old, an electric tool may well be needed.