How to clean cast iron batteries before painting
High-quality painting involves:
- preliminary cleaning from dust, rust and dirt;
- removal of all layers of old oil;
- coating with a primer for metal, preferably heat-resistant;
- painting in 2 layers gives the highest quality and even surface (one layer can be slightly diluted with a solvent to save composition).
Many actions are easy to carry out with improvised means, including brushes for cleaning and washing. Old paint is removed by different methods (it can be complex):
- chemical;
- mechanical (special nozzles for grinder and universal tool);
- thermal (building hair dryer, blowtorch);
- manually.
Advice! Use a metal brush to clean the surface before applying the primer to remove loose particles that can then stick to the brush or roller.
Old radiators after painting will last at least a decade
Not every paint is suitable for painting cast iron radiators. Only non-toxic heat-resistant enamels for indoor use. They are sold in different forms - spray cans, cans, buckets. If you paint without a primer, you can degrease it with a solvent with a suitable chemical composition. Even if the manufacturer writes about the “harmlessness” and “environmental friendliness” of the enamel, when painting the area of the MS-140 cast-iron radiator (another model), they use:
- respirator,
- work gloves;
- work clothes and shoes.
It is recommended to ventilate the room at each stage of processing, especially after the paint has set a little. All calculation data are corrected for any modern model or an old model. The area of the heated surface varies slightly for 1K60P-60x500 "Bas-relief", Standard-90, RD-90s, 2K60P-300, B-Z-140 × 300, MP-2KP140 "Becard", etc. How to calculate, by the number of sections , on the "calculator" or through the program, decide on your own. There won't be big differences.
>Square painting cast iron radiators
The beauty of the heating device can be easily restored by painting the surface of the cast-iron battery.
Why Calculations for Paint Costs for Radiators Vary
Not everyone wants to get rid of old cast-iron batteries after upgrading the apartment. They are practical and reliable, and if the heating system is cleaned and rusty pipes are replaced, old radiators after painting will last at least a decade.
Advice! It is not necessary to cover yellowed, crumbling and cracked layers of paint with a new coating. This should be done only after removing old layers of paint and opening the metal with a primer.
Calculations for paint consumption are complicated by the variety of models of heating devices, differing in many ways:
- mass (weight);
- aesthetics (design);
- format (dimensions of the section and the entire battery);
- power (heat transfer);
- the volume of the coolant (water);
- connection method (side, bottom, diagonal), etc.
Advanced design batteries may require more paint than regular batteries.
New models are also being produced that imitate the old cast-iron accordions. They exactly imitate the general structure of classical heating equipment. They have an improved design with art molding or designer soldering and comfortable feet on the bottom for floor placement. They require a little more paint and primer, materials need to be taken with a margin.
Calculator for calculating paint for a cast iron radiator
Modern heating radiators - steel, aluminum, bimetallic and some others, go on sale with a high-quality, multilayer protective and decorative coating. With careful handling, they can serve for many years without requiring additional painting - it is enough to regularly carry out wet cleaning.Another thing is the good old cast-iron "accordions": they must be painted during the initial installation, and with a certain frequency - during operation.
Calculator for calculating paint for a cast iron radiator
The staining process is able to be carried out by any owner of a house or apartment - the main thing is to choose high-quality paint for these purposes, suitable for its operational parameters for heating appliances. With paint consumption, at first glance, everything is also simple, since manufacturers indicate this parameter on the packaging labels of the factory packaging of the material. But here's the catch! - the flow rate is indicated per unit area, and looking at the complex configuration of a cast-iron radiator, it is problematic to estimate its area. Determine the amount of paint per eye? No, it’s not worth it, it’s better to use the paint calculation calculator for a cast-iron heating radiator, posted in this publication.
Below the calculator will be a brief explanation of how to work with it.
What is it based on and how is it calculated?
It will not be difficult to calculate the area, for example, of flat panel radiators, since the front panel to be periodically painted most often has a rectangular shape. With sectional cast iron, it is more difficult because of their complex configuration, so the calculator is made specifically for them, as they remain one of the most common.
If you “dig” into the technical characteristics of cast-iron batteries, then you can, if you wish, find the value of their surface area. In order not to send the reader to independent searches, these parameters are collected in the calculator database for the most commonly used cast-iron radiators of the MS series, as well as for more modern ones - the ChM series
Please note that some radiators have modifications - internal fins that increase the heat exchange area. Naturally, the consumption of paint for such sections will be higher.
Of course, the total area of painting depends on the number of sections assembled into a battery.
The calculator provides the ability to immediately calculate the paint to cover the supply and return pipes connected to the radiator
If this calculation path is selected, then additional fields will appear for entering values for the pipe diameter and its total length.
Paint consumption is averaged over its main types suitable for painting radiators - these are oil, alkyd, heat-resistant acrylic and special silicone for metal. For different brands of paints similar in base, the consumption may differ slightly, but if we analyze the most commonly used compositions, we cannot fail to notice that all consumption values roughly balance around one average indicator. It is these values that are included in the calculation algorithm.
Despite the fact that different manufacturers operate with different units of measurement of paint consumption, it is most appropriate to take as a common standard - a weight indicator, that is, kilograms per square meter (it is in kilograms that paintwork materials are traditionally measured when planning construction work). On any of the paint packages, in addition to the volume, the net weight must also be indicated.
You will be prompted to indicate the number of planned coats of paint. Usually, two coats are sufficient for a high-quality white coating. However, the situations are different, and the variability of entering a value is expanded - from one to three layers. At the same time, it was taken into account that with each subsequent application, the paint consumption is somewhat reduced.
The final result of the calculator immediately takes into account the traditionally created stock of material, equal to 10% of the calculated quantity.
Cast iron radiators MS - "ageless veterans"
No matter how new the assortment of modern heating devices pleases, cast-iron radiators will certainly be in the service of man for a very long time.What is the secret of the longevity of these batteries, what are their technical characteristics, how to calculate the required number of sections for efficient space heating - read about all this in a special publication of our portal "Cast-iron radiators MS-140".
Preparatory actions
They provide for cleaning the surface of dirt and old paint. The preparation goes like this:
Wipe off dust with a damp cloth. You need to rub it very well. There should be no dirt left in the holes. To wipe hard-to-reach places, the rag is advanced between the ribs and pulled back and forth.
sandpaper and file
https://youtube.com/watch?v=1g-tJKJHIfQ
Apply a layer of primer. Of course, it must withstand high temperatures and match the type of paint. It will be better if the brand of both is the same.
It can be carried out with any type of composition. but under one condition: the solution must be resistant to high temperatures. Otherwise, the updated look will not last long.
The surface of the heating battery is painted using a regular or curved brush. Of course, at the beginning, gloves are put on the hands and gauze, foam rubber or rags are placed nearby. They will be able to erase the paint that has flowed down the brush handle.
The coloring process is as follows:
- With a flexible brush, they update the look of hard-to-reach places (they are located between the pipes of the sections). In some parts, the brush will not touch the cast iron. The gauze folded into a tourniquet can save. It is placed between the sections, paint is applied to the middle and then the ends are pulled in turn. So, the paint will at least somehow fall on the alloy.
- Paint the top and easily accessible places.
- Always moving from top to bottom. It is better to apply the paint in several layers than one thick one.
Heating area of cast iron radiator section
07 May 2013, 11:57
Igor_01 wrote: Calculate correctly, you can consult with your neighbors, see how they are and ask if it's good, are you warm girl, are you warm red?!
Consulting with neighbors is an entertaining business, but from the point of view of reliability it is doubtful. For some, +18 is normal, but for another, even at +24, it’s cold! The air temperature in residential premises is regulated by sanitary standards. The document is called SanPiN 2.1.2.2465-10 "Sanitary and epidemiological requirements for living conditions in residential buildings and premises." Valid in the latest edition from 03/27/2011.
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