Natural stone like Granite, marble, sand stone has long enjoyed use as an exterior and interior cladding, flooring material because of its inherent strength, abrasion resistance and superior weathering durability, which are likely to keep it as one of the pre-eminent material selections available to today's architects. Available in a striking array of colors, natural stone's durability, longevity, and economy make it ideal for kitchen countertops and other heavily used surfaces, including table tops and stair cases.

Natural stone can be classified into two general categories according to its composition: siliceous stone or calcareous stone. Siliceous stone (Granite, slate, sandstone, quartzite, brownstone and bluestone) is composed mainly of silica or quartz-like particles and relatively easy to clean with mild acidic cleaning solutions. Calcareous stone (marble, travertine, limestone and onyx) is composed mainly of calcium carbonate. It is sensitive to acidic cleaning products and requires different cleaning procedures than siliceous stone.

All natural stones are porous, made up of countless interconnected capillary pores through which liquids and gases can move. This is the most critical aspect of all the natural stones. It is understood that these natural beauties can get ugly patch marks on them due to their high absorption property. As a thumb rule, the experts say that the dark colored natural stones have low absorption and the light colored natural stones have high absorption. The reason why we prefer and use black/ dark green granite as the kitchen top or table top is that it has very low absorption and hence does not look ugly when in use.

On the contrary, all the light colored and white natural stones absorb liquid materials quickly and so the color of the liquid gets into the pours of the stone making it look ugly with patches on the surface of the stones. This phenomenon is called picture framing when the stone gets ugly on the borders due to absorption from stone edges as shown in the picture 1.1 and 1.2.

MYK Laticrete   MYK Laticrete
Picture 1.1 (Picture Framing)   Picture 1.2 (Picture Framing)

The absorption of stones also results in the following problems surfacing over a period of time:

MYK Laticrete MYK Laticrete MYK Laticrete
Rusting Moss and Fungus formation Discoloring or staining of stones

MYK Laticrete MYK Laticrete
Chemical reaction with minerals in the Natural stones and hence change in color of stones Soil accumulation (Stones like Travertine)

Besides the above problems in Floorings, there are other problems which occur on the Natural stone installations on walls. Some of them are:

MYK Laticrete MYK Laticrete
Efflorescence Permanent wet patches

It is imperative that we take care of these natural stones to keep the natural look and yet sealing them from absorption of liquids. Let's look at the possible liquid attacks on these stones.
  1. Excess Water in the Traditional Cement Sand mortar mix installation method
  2. Water raising from the sub-layers of the flooring due to capillary action,
  3. Cutting of stones using wet cutting technology
  4. Curing water absorbed by the natural stone
  5. Water from the washing of the installed surfaces
  6. Spillage of food materials and beverages
  7. Spillage of paints, warnish and other coating liquids
  8. Excessive humidity in the environment
  9. Absorption of liquid from various adhesives used for various applications on the project site.
  10. Acid washing of the stones for keeping them clean and tidy.

How do we address this problem of absorption of Natural Stones?

  • By creating a moisture free sub - base or underlayment below the stone so that there is no excessive free moisture to moving into the stone.
  • By using a Polymer modified and Polymer fortified adhesive materials for installation of natural stones. They have a characteristic to absorb and utilize (for hydration) all the excess water used during the installation and also acts a water resistant layer between the substrate and the stone.
  • By sealing the stones from absorbing the liquid materials. While doing so, we should not do this by coating of the surface with leak proof materials as they can form a water proof barrier on top or bottom surface of the stone and can spoil BREATHABILITY of the natural stone. This breathability is very essential for the stones as this phenomenon allows vapour to move freely through the stone, thereby releasing any stress that may have developed by restricting the vapour movement.
  • Besides this, the very purpose of having the natural stone installation TO BE ONE WITH NATURE is defeated by external coating on the stone.
Keeping the above requirements in perspective, MYK LATICRETE tile and stone installation system provides a unique solution called Moisture Barrier System (MBS) to prevent any moisture or stain transporting to marble or granite stone surface. MYK LATICRETE "MBS" package helps to preserve the granite stone to its original beauty and natural look. The following few paragraphs explain how this MBS helps to install a moisture free natural stone system. The pictorial description of this "MBS" is given in the Picture 2.

MYK Laticrete
Picture 2

Latascreed 100 as a Surface Preparation Material

Latascreed 100, Engineered cement powder, is best recommended for granite stone installation screed system where prevention of moisture ingression to the surface is of utmost importance. Latascreed 100 is chemically designed to incorporate self cure and self contain technology (SCT). The self cure technology (SCT) enables the Latascreed 100 to cure itself without need for any external addition of cure water. The self contain technology (SCT) prevents any excess water evaporation from the screed material during and after hydration. The other advantages of Latascreed 100, Engineered Cement, are:
  • Water retaining and self-curing
  • Interior and Exterior applications -12 mm to 60 mm thickness
  • Flexibility to use local aggregates
  • Flexibility to use with "wet on wet" or "wet on dry" adhesive systems
  • Dimensionally stable-shrinkage free
  • Meets or exceeds traditional screed system on compressive strength (3000 psi (21 Mpa)) for 4: 1 mix after 28 days
  • Economical yet high performing

Polymer Modified Adhesive as a Bonding Material

MYK LATICRETE's one part system polymer modified adhesives or a two part polymer fortified adhesive is highly recommended for marble/granite stone installation. These products are formulated to provide superior bonding and high flexibility to protect the stones from movement and stress. These formulations were chemically designed to have a very high water retention property. High water retention property helps the adhesive to cure uniformly and ensure the adhesive to retain all the excess hydration water from evaporating to the stone matrix. The various polymer fortified systems of MYK LATICRETE are listed in Table 1.

Table 1: Product Guide for Moisture Free Stone Installation
System Description Specification
Screed Systems
L 226 + L 3642 Two Part system M 30 Grade
Latascreed LS 100 One Part System M 25 Grade
Polymer Modified Adhesives
L 252 One Part System ANSI A 118.4
L254 One Part System ANSI A118.4 and A118.11
L111+73 Two Part System ANSI 118.4 and A 118.11
L111+4237 Two Part System ANSI 118.4 and A 118.11
L290+333 Two Part System ANSI 118.4 and A118.11
Grout System
Latapoxy SP 100 Three Part System ANSI 118.3
Aquashield Powder to be mixed with L1776 grout admix ANSI 118.6
Stone and Tile Sealer
Laticrete 190 Sealer Water Based Stone and Grout Protector  
Maxiseal Plus Solvent Based High porous to Dense Stone Sealer  

LATICRETE 190 Sealer and MAXISEAL Plus as a Moisture Barrier

Despite the screed and adhesive's superior moisture retention mechanisms, the heat generated during the adhesive hydration will result in some water evaporation and condensation of moisture on the stone surface. To prevent any such moisture transporting to the stone, we highly recommend to pre coat the stones on the bonding side as well all the four edges of the stone with LATICRETE 190 Sealer. LATICRETE 190 Sealer is an invisible, penetrating sealer which forms an invisible water repellant surface. It will not change the color of the stone. This sealer has an excellent compatibility with cement based adhesives and grouts. Once the stone is installed, the top surface should be sealed with MAXISEAL Plus. MAXISEAL Plus is a nano -technology based impregnating sealer designed for the protection of all highly porous tile/ stones and grout surfaces. This product imparts oleo phobic properties, highly resistance to oil, water, alkalis, acids staining and freeze thaw damages. It penetrates into the surface and forms an invisible barrier by allowing vapor to escape (breathability). It keeps the natural colour of tile & stone intact. All surfaces treated with MAXISEAL Plus are harder and less slippery. It is ideal for interior as well as exterior application and recommended for granite, marble, sand stone, porous slate, brick and sanded grout.

LATAPOXY SP 100 or Aquashield as a Grout Material

It is very critical that all the stone joints howsoever small have to be sealed with appropriate joint or grout material in order to prevent any water or harsh cleaning material penetrate in to the stone joints and subsequently to the stone matrix.

MYK LATICRETE offers two great grout systems for the sensitive stone installation systems. LATAPOXY SP 100 is a stainfree, color-fast, chemical resistant 100% Solid Epoxy Grout for tile or stone installation. This product provides 100% water and stain resistance and excellent abrasion resistance in heavy traffic areas like airport and shopping malls. MYK LATICRETE also offers hydrophobic cement based grout called "Aqua Shield" for the same purpose. This product has been specially formulated to have a high water resistance characteristics. When mixed with LATICRETE 1776 Latex admixture Aqua shield offers the same superior water resistance and stain resistance property as LATAPOXY SP 100.

However for best results, it is highly recommended to perform field test of minimum 10 sft to understand the absorption nature of the stone. Please refer to technical data sheet for installation instructions.

Dr. P Arjunan, V.P - R&D & Mr. N. Radhakanth, Sr. Manager - Technical Services - MYK LATICRETE, Hyderabad
Click Here
To Know More or to Contact the Manufacturer
Please let us know your name.
Invalid Input
Please let us know your Designation.
Please let us know your Contact Number.
Please let us know your email address.
Please brief your query.
Our other Value-Added Services:

To receive updates through e-mail on Products, New Technologies & Equipment, please select the Product Category(s) you are interested in and click 'Submit'. This will help you save time plus you will get the best price quotations from many manufacturers, which you can then evaluate and negotiate.

Invalid Input
Invalid Input
Invalid Input
Kalyani Polymers is offering world-class made-in-India Synthetic Micro & Macro Concrete Fiber Products for the Construction Industry under the brand name FIBERCRETE®. Concrete is an integral part of any construction project, it can be roads, tall structures

Read more ...

Leading cement and concrete maker ACC has unveiled a revolutionary thermal insulating climate control concrete system in India. Sridhar Balakrishnan, MD & CEO, ACC Limited, discusses its attributes, applications, and benefits for home builders, architects

Read more ...

Dr. Manjunatha L R, Vice President - Direct Sales & Sustainability Initiatives, and Raghavendra, Senior officer, JSW Cement Limited, discuss bacterial concrete that can meet the requirements for strength, durability, and self-healing of cracks.

Read more ...

Dada S. Patil, Assistant Professor, Civil Engineering Department, AIKTC, Panvel, Navi Mumbai, Maharashtra; Dr. S. B. Anadinni, Professor & Associate Dean (Core Branches), School of Engineering, Presidency University, Bengaluru; and Dr. A. V. Shivapur, Professor

Read more ...

Samir Surlaker, Director, Assess Build Chem Private Limited, emphasizes the importance of a clear cover for a concrete structure since concrete as a porous material needs protection of its reinforcement. Along with the thickness (quantity) of cover, the porosity of

Read more ...

Concrete technology has come a long way since the Romans discovered the material, with a number of ingredients, which include a host of mineral and chemical admixtures, besides of course, the Portland cement, aggregates (coarse and fine), and water. These ingredients

Read more ...

Anil Kumar Pillai, GM, Ramco Cements, discusses two major softwares (Life 365 and DuraCrete), used in the industry for protection of RCC structures. The common design approach is faulty because we consider only the loading aspect, whereas the environmental aspect is equally

Read more ...

Fibre Tuff, macro synthetic polypropylene fibres, are heavy-duty synthetic fibres that are specially engineered for use as secondary reinforcements, providing excellent resistance to the post cracking capacity of concrete. They are replacing steel fibres in a range

Read more ...

Reinforced concrete design and construction practice has historically focused on the use of bonded straight or bend rebar as a method for rebar anchorage. This relies on bond integrity between the rebar and the concrete so that sufficient anchorage

Read more ...

Innovation and entrepreneurship are essential ingredients in building a successful commercial venture. The ways in which these two concepts fuel enterprise are something entrepreneur's never stop exploring. There is no doubt that innovation were

Read more ...

Alite and belite are the predominant phases of Portland cement formulation. Alite is impure tricalcium silicate (C3S) and belite is impure dicalcium silicate (C2S). The impurities are an integral part as cement is manufactured

Read more ...

Concrete is a versatile construction material and day by day its consumption is increasing globally. It is second only to water in the global consumption. No civil engineering structure is feasible without using concrete

Read more ...

The use of Graphene with concrete has been talked about and researched ever since Graphene was invented in 2010 which grabbed its inventors a Nobel prize. Nanospan is the first company in the world to break technological and commercial

Read more ...

Fosroc is the foundation of the JMH Group. It employs over 1700 employees in 17 operating companies based in Europe, the Gulf & Middle East, India, South Asia, and China. Through FGT, its trading company, it services another 50 countries

Read more ...

Established in 1983 by French expatriate entrepreneurs, the Dextra Group has a long history of growth and development, driven by strong entrepreneurship and innovation. It has diversified into three main activities: manufacturing, trading and freight forwarding

Read more ...

Jyotirmoy Mishra, Ph.D. Scholar, Department of Civil Engineering, Veer Surendra Sai University of Technology, Burla, Odisha, presents his research on the feasibility and compressive strength performance of geopolymer concrete

Read more ...

As every one ton of Cement (OPC) produced, emits 0.96 tons of CO2, there is an urgent need to promote blending materials (ex. GGBS &PSC) and screened slag, to achieve lower CO2 emissions, reduce greenhouse gas effect, reduce exploitation

Read more ...

In most of the developing countries, demand for steel for use as a reinforcing material is increasing day by day. However, when steel is in short supply, one can consider bamboo as an alternative material for reinforcement

Read more ...

There is high demand for white cement in countries with hot climates, as more heat is reflected from white concrete surfaces as compared to standard grey concrete. As a value-added product, white cement is becoming

Read more ...

Garry Martin, Director - Major Projects, Low & Bonar Construction Fibres, presents a new examination of the benefits of micro fibres in both the plastic and hardened state of concrete and their contribution to increased sustainability.

Read more ...