Tuesday, December 12, 2017

ULTRA HIGH PERFORMANCE CERAMIC TILE ADHESIVE

DESCRIPTION

RachTR TSA ST is a polymer rich, cementitious tile adhesive for thin or thick bed fixing of ceramics tiles in interior or exterior situations and ensures excellent bonding on concrete and plasters, exceeds EN 12004:2007 C1

BENEFITS

• High adhesive bond strength.
• Excellent waterproofing characteristics.
• Non-slip and has excellent grab properties.
• Excellent tensile strength.
• Prepacked factory controlled.
• Ensures consistent quality.
• Easy to use.
• Waterproof immersion does not affect adhesion.

RECOMMENDED USES:

RachTR TSA ST can be used for fixing tile on tile applications, ceramics, glass mosaics, swimming pools, bathrooms, kitchens, laboratories, canteens, etc. It provides strong adhesion to cement/sand screeds, concrete and brickwork. It is also suitable for substrates such as glazed tiles, terrazzo and suitably prepared timber.

APPLICATION INSTRUCTIONS

Surface Preparation:

All surfaces should be sound and thoroughly cleaned before RachTR TSA ST  is applied. All traces of greases or oil must be removed with degreaser. All loose particles of mortar must be physically removed.

Surfaces:

RachTR TSA ST can be applied directly on concrete, cement screeds, cement, lime mortars and existing tiles. Timber surfaces should be checked to ensure rigidity and soundness to accept the additional loading without deflection. Provision must be made to ensure adequate ventilation beneath tiled timber flooring.

Mixing:

RachTR TSA ST should be mixed with water in the ratio of 3:1 by volume. Place gauging water in a clean mixing vessel. Add powder and mix with a suitable stirrer or mixer mounted on slow speed electric drill until a plastic, lumps free consistency is achieved. Hand mixing may be allowed if drill/paddle is not available. Allow to stand for 5 mins before use.

Application:

Apply thin bond coat to the substrate with the straight edge of the trowel. Then comb mortar on to the fresh bond coat with the notched edge of the trowel working in the direction. Apply only that much mortar which can cover the tiles within the open time. Open time can be checked by touching the adhesive bed with fingertip.
Position tiles in the adhesive bed and align with a slightly pushing motion, ensuring the tile back achieves full contact with the adhesive.
Finishing:
Remove excess adhesive with a damp cloth before material has set. Joint grouting may be commenced 24 hours after tiles have been laid.

Info@rachtr.com


RachTR Floor Adhesive

In this age of innovation, we have started to beautifully experiment with our ideas about a perfect home. From implementing IoT in our household to the latest interiors. But have you ever thought that what would people think if your floor looks dull and boring? All the fancy items would not reflect if your floor doesn’t. RachTR provides you with a solution to use its flooring adhesives to make your floors lustrous and help bring a statement to your life.

The types of flooring adhesives we offer are:

1.    RachTR Epoxy 201 G- Thixotropic translucent Epoxy gel for fixing various substrates to various substrates. A fast-curing, thixotropic, non-migrating adhesive designed for filling gaps and bonding rough or smooth surfaces. The disappearing blue colouring tells you when the product is thoroughly mixed and ready to apply. It’s a general-purpose adhesive/encapsulant which easily dispenses and mixes in seconds, dries in 15 minutes and reaches functional strength in 1 hour. 

KEY FEATURES:

·         Bonds rigid durable substrates such as metals, glass, ceramics, concrete and wood in all combinations
·         High tensile strength (2,500 psi)
·         Good solvent resistance to gas, oil and other solvents
·         Non-Sag (No-Drip) which makes it ideal for use on walls and vertical surfaces
·         Excellent gap filling qualities without tremendous shrinkage Fast curing for bond tags on machinery and equipment

2.    RachTR RER 108 & REH 108 - Multipurpose adhesive system, with excellent bond strength. A light cure dental adhesive system that is designed to handle difficult bonding situations, is fast and easy to apply and offers excellent bond strengths to a variety of surfaces.

KEY FEATURES:

          A versatile adhesive system designed to handle difficult bonding situations such as bonding to sclerotic dentin and bonding in moist environments.
·      Reduces microleakage that can contribute to postoperative sensitivity for increased patient comfort and doctor confidence.
·       Offers excellent bond strengths to a variety of surfaces for reliable bonding performance.

3.    RachTR TSA PR – Polymer modified thin-set tile and stone adhesive, exceeds EN:12004:2007 C2TE. The tile layer is unaffected by minor cracking and movement in the substrate. This can be very important in the applications over concrete where cracking in the concrete could result in cracking the tile. It is also very important in tile installations over structural slabs or other structures where vibrations and deflections can be expected.

KEY FEATURES:

·         Level out unevenness in the substrate.
·         Create an ideal surface to which the tile can be bonded.
·         Incorporate slope in the tile layer if needed.
·         Reinforcement of the substrate.


4.    RachTR TSA ST - Polymer modified thin-set tile and stone adhesive, exceeds EN 12004:2007 C1. They are single component thin set adhesives but with high polymer modification. Most suitable for exterior and interior installation of tiles and stones on floors and walls. Most varieties of tiles and stones can be installed using Polymer modified thin set adhesives.
KEY FEATURES:

·         High bond strength and water resistance.
·         Increased flexibility and resistance to weather conditions.
·         Improved shock and impact resistance
·         Easy to install – fast and economical
·         Hassle-free and long lasting

All of these are made under expert supervision. With a team of people belonging to rich fields of education, we bring to you a solution that rebuilds your dream home.

Are epoxy floors worth an investment?

It’s not always easy to figure out the best garage floor epoxy coating system for your garage which also fits your budget. With so many epoxy products, manufacturers, and commercial installers to choose from, it can be frustrating and somewhat overwhelming if you don’t know exactly what you want or how an epoxy coating system works. But the days of worry are long gone because we are here to help you out in choosing the best epoxy product from the array of items available in the market. Our goal here is to help eliminate the confusion about epoxy and to educate you on the different options available in order to choose the best epoxy for you.

There are many reputable brands of epoxy available. What it comes down to when determining the best coating for your garage floor is,
1. What type of epoxy is it?
2. How is it used as part of a system?

WATERBORNE EPOXY PAINT
Water-based epoxy is easy to apply and has a longer pot life that reduces the worry of getting it applied as quickly as other epoxy products require. It’s almost as easy to apply as paint and is why it’s advertised as epoxy paint. Because of this, it is best recommended if you are a DIY customer.
These kits are designed as a single coat system with roughly 50% solids content of epoxy and a coverage rate of around 250 square feet. They roll on easy and cure to a thin coat of approximately 3 miles with a matte to semi-gloss finish.
Though inexpensive, this is the least durable of epoxy. They are based on older formulations and are not the best value for your money. Their resistance to stains and chemicals are not as good as other types of floor epoxy and they are susceptible to damage on heat application.
If you like the easier application requirements of water based epoxy, you can increase the durability and protection with a more professional multi-coat kit that offers a second coat of epoxy clear as a top coat. This also doubles the coating thickness from 3 mils to 6 mils. Some brands such as The Original ColorChips offer kits such as these. They are a better value for the money with more current epoxy formulations and pricing starting around 11,000 bucks.

HIGH SOLIDS EPOXY
The next step up is the commercial grade epoxy products. They have the best resistance to stains, chemicals, and abrasion. They also have high solids content with the best being 100% solids epoxy.
The 100% solids single coat system is much thicker and will cure to approximately 10 mils or more depending on the brand. In fact, a single coat of 100% solids epoxy is more durable than two coats of a typical water based product. High solids epoxy make for a great color base coat to a multi-coat system due to their high build and are available in many choices of color options as well.
Cost for these commercial grade products vary depending on the solids content and brand. Expect to pay a minimum of 7500 bucks for clear epoxy only that will cover 250 square feet. The price goes up from there for standard colors and custom tints. For an average price of 18000 bucks, many of these kits include the tools required to apply them plus a bag of coloured acrylic paint flakes or chips to apply to the floor as well.
Though this type of epoxy is a much better value, it is not as DIY friendly as water based epoxy. It has a much thicker viscosity and needs to be back rolled when applied. The potlife is shorter as well, requiring that it be applied to the garage floor within 30 – 40 minutes after mixing.

CLEAR EPOXY OR POLYURETHANE TOP COATS
To improve upon the single coat 100% solids epoxy, the next step is to add a coat or two of clear epoxy or polyurethane. This is referred to as the top coat. Thisclear coat system adds not only durability and thickness, but is also what gives your floor that deep gloss and shine.
If decided on adding a topcoat, you also have the option of adding additional paint chips to your base coat. They can be sprinkled on sparingly or they can be applied to full refusal. Full refusal is the process of throwing on chips until they don’t stick anymore.
There are two reasons you may want to do a full refusal broadcast. The first is that it will give the floor some texture, increase thickness for durability, and help to produce an ant slip surface. The second reason is pure cosmetics. With the multitude of different coloured chip combinations to choose from, you can give your house floor any custom heart capturing look you desire.

FINAL NOTES
If you are going to apply an epoxy coating yourself, you can create any one of the above combinations. Just remember when looking at different brands, compare both the coverage rate and solids content along with the price. If product A covers 250 square feet per container and product B covers 300 square feet per container, product B is rather recommended if you have a 540 square foot room that needs epoxy flooring. Do not attempt to stretch it out or you are destined to receive poor results.
Another factor to consider is the additional that come with these package. Some brands include rollers, mixing paddles, spiked shoes, paint brushes and other supplies in their price. Finally checking to see if they offer any kind of technical support. If this is yourfirst time at applying a good quality epoxy it’s better to opt for some technical support before experimenting with your floor and your money.
So remember when choosing the best epoxy coating for your floor and budget is to make sure you have enough to cover every corner. Multiple coats will increase the wear and durability of the floor and always go with a higher solids content if you can afford it. The cost average over time for the floor is much better if you do. And finally, if applying the floor coating yourself, choose an epoxy manufacturer with good customer service to insure a good experience and a quality floor.


Tuesday, February 7, 2017

Natural Stone Classification




Stone Classification

Stones have been used in building construction since thousands of years. Its qualities like durability, strength, hardness, etc. has made it one of the effective materials for construction purposes.
Stones are derived from rocks which are classified as:-

  1. Geological origin: Sedimentary, Igneous and Metamorphic
  2. Chemical composition: Siliceous, Argillaceous and Calcareous
  3. Physical form: stratified, unstratified and foliated
Geological classification of Rocks

Sedimentary Rocks 
  • They are formed as the sediments deposited over a period of time mostly at the bottom of sea and oceans. They include minerals and remains of plants and animals. E.g. Limestone, Sandstone

Metamorphic Rocks
  • They are formed when the already existing rocks undergo changes due to intensive heat and    pressure. E.g. Marble, Slate
 
Igneous Rocks
  • These stones are formed when the molten magma from the earth cools inside the earth or on the earth surface and solidifies. E.g. Granite
 

 Physical Properties Classification

 
Chemical classification of Rocks

 

Siliceous Rocks 
  • They are sedimentary rocks which mainly contain silica. They are hard and durable. E.g. Flint, Chert

Argillaceous Rocks
  • They are sedimentary rocks with the main constituent as argil i.e., clay. These stones arehard and durable but they are brittle. They cannot withstand shock. E.g. Mudstone, Claystone, Slates and laterites.


  • Calcareous Rocks
  • They basically are sedimentary rocks with main constituent as calcium carbonate. Limestone is acalcareous rock of sedimentary origin while marble is a calcareous rock of metamorphic origin.


Physical classification of Stones

Stratified 
  • Stratified rocks show a layered structure and can be easily split up into slabs. Sedimentary rocks are stratified rocks.E.g. sandstone, limestone, slate, etc.
Unstratified
  • They cannot be easily split into thin layers. Igneous rocks are unstratified rocks. E.g. Granite, trap, marble, etc.
  • Metamorphic rocks may be either stratified or unstratified

Components of Rocks: Crystals and Grains
Crystals
  • They are individual minerals that have grown in place to form a rock. In igneous rocks they are minerals that crystallize from the solidifying magma/lava. In metamorphic rocks, they are minerals that grow within the solid rock through chemical reactions between neighbouring minerals. Thus identifying crystals in a rock means that the rock must be either igneous or metamorphic.
 Grains
  • They are pieces of pre-existing rock or organic material (e.g., shells) that have been cemented together to form a sedimentary rock. Thus identifying grains in a rock means that the rock must be sedimentary.
 The list of rocks suitable for building stone is summarized in the table below :-

Rock Family
Rock Name
Common Colors
Common Features



   Sedimentary
Sandstone
Reddish Brown, Beige, White, Grey
Grainy; composed of rounded grains up to 2 mm in diameter. “Sandy” feel. Bedding is common.
Limestone
Grey, Cream, Tan, Pink
Grainy. Fossils are common. Bedding is common. Stylolites are common.



Igneous
Granite
White, Pink, Speckled
Crystalline. Crystals large enough to see. Light colored
Granodiorite
“Salt and Pepper”
Crystalline. Crystals large enough to see. Mix of light and dark crystals.
Gabbro
Black, Green, Dark Grey
Crystalline. Crystals large enough to see. Dark colored


Metamorphic
Marble
White, Pink
Crystalline. Wispy, “marbled” textures are common. No fossils.
Gneiss
Pink, Black and White
Crystalline. Bands of distinctly different color. Bands may be irregular and folded


Manufacturing Processes
The process of manufacturing engineered stone can be broken down into:-
  1. Creating/gathering the material
  2. Forming the block/slab using industrial machine
  3. Processing the finished block/slab into tiles or other products
Some companies import boulders themselves to crush into agglomerates (stone powders) of various grain size for their products, others simply buy already crushed stone powders.
After the block / slab is formed and cured (this usually takes between three and seven days depending on products and weather conditions), the stone can be processed in basically the same manner as its natural counterpart.

Detailed manufacturing process includes:
1.      Selection of the right Quarry and the Big Block
2.      Cutting down the Block to Slabs
3.      Sizing of the Slabs
4.      Filling Process
5.      Polishing or Honing
6.      Final Quality Check and Shade Selection
Manufactured Stone

Manufactured Stone is made up of concrete mix which is moulded and colored to give a realistic look and feel of natural stone. They are widely used in home decorations and public buildings.
 

Advantages
  • Manufactured Stones are more lightweightand flat back. This allows for its easy and faster to install as compared to natural stones
  • It is reusable, eco-friendly, non-toxic and new green interior decoration material
  • Easy to clean
  • Heat, fire and Impact resistant
  • Repairable and used long term
 Disadvantages
  • Manufactured stones are costly as compared to readily for freely available natural stones
  • To avoid improper installation hiring a professional is a necessity. Flaws in the installation are apparent if not done properly
  • They do not give a realistic look like that of natural stones
  • Certain limitations like outdoor use/swimming pool as they may get affected by sunlight/chlorine
References:

http://www.shutterstock.com