Painting

Since painting enhances the look of buildings, it is a common element of renovation projects. However, paints have additional uses beyond improving appearance. Knowing the performance features of each type of paint is important to select the best product for each application. Painting is normally carried out for the following reasons:
  • Protecting surfaces from insects, rain, solar radiation & other external factors
  • Well painted surfaces are easier to keep clean and safe
  • Increasing the visual appeal of a surface
  • Waterproofing
  • Increasing surface durability
Before selecting the type of paint for a specific application, its physical properties must be considered. A good paint will offer the following benefits:
  • Ease of application
  • Reasonable drying period
  • Forming a thin film without cracking
  • Forming a hard and durable coating
  • Its performance should not be affected by the weather
  • Not harmful for users

PRODUCTS

SUNBLESS

SunBless, the innovative All-Weather Protection and Functional Coating An ideal solution for today’s Global Warming and Environmental Protection SunBless is specially developed as a universal all-pervading solution, to address multitude of issues and problems being faced today, by the industrial and corporate world, as well as the society at large.

Sun Bless which can be applied on ANY Surface.

Sun Bless gives unique advantages like:
  1. Thermo Insulation Effect - Cool in Summers & Warm in Winters
  2. Protection from Water Leakage & Seepage
  3. Protection from Salt - Water Corrosion
  4. Relief from Wall & Ceiling Mold
  5. Promotes Energy Savings
  6. Helps in Reduction of Global Warming
  7. Provides Dampening Effect - Helps reduces Roof- top noise during Heavy downpour
  8. Protects Building from Heating Effect
  9. Protection for Acidic Corrosion.
And all this in One Paint Solution!

Other Precedented USPs of SunBless:
  1. Sunbless has clocked Solar Reflective Index - SRI of 112. Global Products have SRI in the range of 92 - 102
  2. The Working Temp Range of Sun Bless is - 40 Degree C to + 140 Degree C (for Present Product introduced, upto 1000+ Degree C is being developed) Most of the other products work in the range of -15 Deg C to +95 Deg C.
  3. Salts Test - Certificate is for 1000 Hrs as Labs in India have limitations to test beyond 1000 Hrs. In Japanese Private Labs - Sun Bless is tested for 3000 Hrs. Competitors do Salts Test between 300 - 500 Hrs.
  4. Once applied Sun Bless can withstand 150 Bars of Water Pressure - much Exceeding Pressures generated by Category 5 Hurricanes & Clyones.

MC Bauchemie Anti Carbonation Protective Coatings used in Atal Setu

Carbonation in reinforced concrete is one of the most common forms of deterioration of structures. It is the reaction of carbon dioxide in the environment with the calcium hydroxide in the cement paste. Due to carbonation, the protective oxide layer surrounding the structure's reinforcing steel breaks down and corrosion or rusting starts. Deterioration is much faster in structures such as bridges which are associated with the ingress of water and freeze/thaw cycling. Carbon dioxide from the atmosphere reacts with the concrete in these structures, leading to a loss of alkalinity and subsequent corrosion of the reinforcing steel. Once the concrete is rusting, concrete starts to stall and falls off leaving an open passage for contaminants to easily penetrate the concrete. The structural integrity of bridges can be compromised until it is protected with an anti-carbonation protective coating.

Anti-carbonation protective coatings protect bridges against the ingress of carbon dioxide and water, whilst allowing damp substrates to breathe without blistering. They protect concrete from carbonation by acting as a carbon dioxide barrier.

MC-Bauchemie is one of the specialist manufacturers and suppliers of anti-carbonation coating products in India. In this article we have focused on a project wherein their anti-carbonation protective products were used to meet the subsequent carbonation challenges in a bridge. Atal Setu Project [which was earlier known as Mandovi Bridge], in Goa, India is the project in focus. The surface protection work of the bridge was executed by using a range of MC-Bauchemie anti-carbonation protective coating products.

Application of MC-Bauchemie Anti- Carbonation Protective Coatings used Atal Setu

Structure Requirement:
The first Cable-Stayed Bridge by L&T in India situated in Goa over Mandovi river later named Atal Setu had a requirement of 1.5 lac m2 of surface area to be protected from environmental deterioration.

Anti-carbonation coating products used in the project:
Anti-carbonation coatings were used for surface treatments that have a high resistance to carbon dioxide. The products safeguarded the bridge structure from carbonation by acting as a carbon dioxide barrier. The range of products used was Emcecolorflex, MC- Nafuquick and MC- Primex 250.

Emcecolorflex

Emcecolor-flex is an acrylic polymer modified elastic elastomeric breathable, anti-Carbonation coating product. 70 tons of the product was used for the project. The primary reason for the selection of the product is that it has crack bridging and UV-resistant protective features that shields against environmental degradation. It is also water-based and solvent-free. It provides excellent protection for concrete structures such as bridges subjected to adverse climatic conditions.

The product is waterproof and has a low water vapour diffusion coefficient. This makes the coating breathable. It also has a high resistance to diffusion of carbon dioxide and thus has good anticarbonation properties. In addition, EmceColor-flex is crack bridging, which is advantageous in case of repair and protection of cracked facades, exhibiting hairline and shrinkage cracks.

MC- Nafuquick
It is a polymer-modified filler that provides a single layer of up to 6 mm. The product is ready to use, you just need to mix it with water. It is colourfast and offers light-resistant pigmentation

MC- Primex 250
It is an acrylic primer that rapidly dries and improves adhesion. It reduces absorbency, binds dust and is solvent-free.

Many benefits were obtained by incorporating the anti-carbonation coatings for the project in a welldesigned manner. These include prevention of water ingress and chemicals and de-icing salts from penetrating the structural deck of the bridge thereby preventing the steel reinforcing bars from corroding.

Mc Bauchemie anti-carbonation products

The right selection of anti-carbonation products is pivotal for bridge structures. The anti-carbonation product lines of Mc Bauchemie offer ultra-modern surface coating solutions relating to the protection and colouring of concrete surfaces. The pure, pro and vision variants are available within each product line. The construction chemical applicators are sure to find a tailored solution to their specific requirements. All the products are water-repellent, open to vapour diffusion, carbonation-retarding and resistant to UV, soiling and weathering.

TYPES OF PAINTS

Oil Paint

Oil paints use white lead as a base, and are applied in three coats: primer, undercoat and finish coat. Oil paints can achieve mat and glossy finishes, while being durable and affordable. They are characterized by their ease of application, and painted surfaces are easy to clean. Oil paint is commonly used in walls, doors, windows and metal structures.

Note that oil paint is not suitable for humid conditions, and it takes time to dry completely. Also, before applying oil paints, linseed oil and pigments must be added.

Enamel Paint

This type of paint is produced by adding lead or zinc to varnish. Pigments are added to achieve a wide variety of colors. Enamel paints form hard and glossy coatings, which are easily cleaned. They are characterized by being waterproof and chemically resistant, offering good coverage and color retention.

The following are some common uses of enamel paint:
  • Interior and exterior walls
  • Wood trims, doors, and flooring
  • Windows
  • Stairs
  • Surfaces like wicker, masonry, concrete, plaster, glass, and metals.
The main limitations of enamel paint are slow drying, and requiring a titanium coating before application.

Emulsion Paint

Emulsion paints use polyvinyl acetate and polystyrene as binding materials, and they contain driers like cobalt and manganese. They can be water or oil based, and pigments are used to achieve the desired color. Emulsion paints are characterized by their fast drying and hardening, and surfaces can be cleaned easily with water. Once applied, enamel paints offer durability, good color retention, and alkali resistance.

Emulsion paints are commonly used for interior walls, ceilings and masonry work. Some specialized types of emulsion paints can be used for woodwork.

Cement Paint

Cement paint is available in powder form, which is mixed with water to achieve paint consistency. The base material is white or colored cement, and it may also contain pigments, accelerators and other additives. Cement paint is durable and waterproof, and it is commonly used in rough internal and external surfaces.

Consider that cement paint has a long drying time, typically 24 hours. It must also be applied in two coats to prevent dampness issues.

Bituminous Paint

This type of paint is made from dissolved asphalt or tar, which gives it a characteristic black color. It is waterproof and alkali-resistant, but not suitable for applications where it will be exposed to the sun, since it deteriorates.

Bituminous paint is commonly used in underwater ironworks, concrete foundations, wooden surfaces and iron pipes. It also helps provide rust resistance when applied in metals.

Aluminium Paint

This type of paint is produced by mixing aluminum particles with oil varnish. It is resistant to corrosion, electricity and weather exposure. Aluminum paint is commonly used for metals and wood, and some specific applications are gas tanks, oil tanks, water pipes and radiators.

The very finely ground aluminium is suspended in either quick-drying spirit varnish or slow-drying oil varnish as per requirement. The spirit or oil evaporates and a thin. The advantages of aluminium paint are as follows:

  1. It is visible in darkness.
  2. It resists heat to a certain degree.
  3. The surfaces of iron and steel are better protected from corrosion by this paint than any other paint.
  4. Metallic film of aluminium is formed on the surface. (iv) It possesses a high covering capacity. A litre of paint can cover an area of about 200 m2.
  5. It gives good appearance to the surface.
  6. It is impervious to the moisture.
  7. It possesses high electrical resistance.
The aluminium paint is widely used for painting gas tanks, hot water pipes, marine piers, oil storage tanks, radiators, etc.

Anti-Corrosive Paint

This paint essentially consists of oil and a strong drier. A pigment such as chromium oxide or lead or red lead or zinc chrome is taken and after mixing it with some quantity of very fine sand, it is added to the paint.
The advantages of an anticorrosive paint are as follows:

  1. It is cheap.
  2. It lasts for a long duration.
  3. The appearance of the paint is black.

Synthetic Rubber Paint

This paint is made from dissolved synthetic resins, and can include pigments. It has a moderate cost and its main benefits are chemical resistance, fast drying and weather resistance. Synthetic rubber paint is used for concrete surfaces in general, and this includes fresh concrete.

It has the following advantages:
  1. It offers good resistance to the water and is not affected by heavy rains.
  2. It dries quickly.
  3. A uniform colour is maintained when this paint is applied on the surface.
  4. It is little affected by weather and sunlight.
  5. It can be applied on surfaces which may not be completely dry e.g. fresh concrete.
  6. It is moderate in cost and covers a sizeable area.
  7. It is easy to apply on the surface.
  8. It possesses excellent chemical resisting property.

Cellulose Paint

Cellulose paint is produced from celluloid sheets, amyl acetate and photographic films. Adhesion can be improved by adding castor oil, and surfaces can be easily cleaned and washed once the paint has dried. This type of paint is characterized by its quick drying, smooth finish and hardness, while offering resistance to water, smoke and acids. Thanks to its properties, cellulose paint is commonly used in cars and airplanes.
The main disadvantage of cellulose paint is its high price.

Plastic Paint

This paint uses water as a thinner, and it is available in a wide range of colors. It dries very quickly and offers high coverage. The following are some common applications:
  • Walls and ceilings of auditoriums, showrooms, display rooms, etc
  • Slabs
  • Decks

Silicate Paint

Silicate paint is made from a mixture of silica and resinous substances. Its performance benefits include good adhesion, hardness, heat resistance, and being chemically unreactive with metals. Therefore, this type of paint is commonly used in metal structures.

Casein Paint

This paint is made from casein mixed with white pigments. It is available in powder and paste form, and pigments can be added. Casein paint is commonly used to paint walls, ceilings and wood.

Why BPT for Painting?

Rusting Process Slows Down

Slower rusting and degradation to building structure

Saves Costs

Saves costs and better building life thus reduced maintainance.

All Weather Protection

Weather hot or cold, always shines and does its job.

Some painters transform the sun into a yellow spot. Others transform a yellow spot into the sun. Reach out to us and allow us to transform your yellow spot to a sun!

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