FAQ's

What is difference between Walls, Floor, and Porcelain & Vitrified Tiles?

Ceramic tiles are classified in different category according to Water absorption (WA).

  1. Tiles of Very Low and Low Water Absorption
    • E ≤ 0.08 % (Group B1a) – Ceramic fully vitrified tiles
    • 0.08 < E ≤ 3 % ( Group
  2. Tiles of Medium Water Absorption
    • 3 < E ≤ 6 % (Group B11) – Ceramic Floor tiles
  3. Tiles of High Water Absorption
    • E > 10 % (Group B111) – Ceramic wall tiles

Lesser will be value of water absorption means tiles would be harder & denser.

What is Germ Free Tile?

Germ Free Tile is an innovative product from Orient Bell Ltd, using a specially formulated glaze with antimicrobial treatment. We produce GFT with NANO particles of borates, Zinc and Magnesium ions embedded in glaze. These Silver/zinc/MgO nano particles, when comes in contact with bacteria and fungus destroy cellular metabolism and inhibits multiple growth of those bacteria and fungi which cause infection. This technology in tiles kills more than 99.5 percent disease causing bacteria. GFT is more suitable for Hospitals, Food industries and Schools etc.

What is Cool Tile?

A cool tile is one that reflects the sun’s heat and emits absorbed radiation back in to the atmosphere. This will keep the inside building cool. Indian Green Building Council recommends buildings should use a roof with minimum SRI value of at least 78 to keep indoor cool and reduce air conditioning and electricity consumption. Our Cool tiles have an SRI value of 103. These tiles when covering the entire roof of the building can reduce inside building temperature by up to 10 degree centigrade. Cool tiles more suitable for roofs & exterior walls that come in direct contact with Sun’s heat.

Why warpage (undulation) do exists in ceramic fired tiles. Is it possible to Produce all tiles with same Curvature?

Warpage is the curvature on the face a tile which can be Convex or Concave in shape. Variance in warpage leads to Undulation. Undulation is a condition where one edge of tiles is higher than adjoining tiles results uneven appearance. It is due to changes that occur in the tile during the intense firing & cooling process of production. Glaze is more stable in compression, therefore, +ve curvature is desirable in tiles. Lippage/ undulation become visible when the tiles are laid without spacers. By the use of required spacers, the lippage effect may be nullified. Bigger the size of tiles more will be tendency of warpage.

Therefore, we always recommend use of spacer during tiles laying.

What is difference between Polished Tiles & Glazed Tiles?

Polished tiles give more aesthetic appeal as compared to Glazed tiles. Polished tiles have softer surface as compared to Glazed tiles due to grinding of surface layer. Polished tiles having lesser scratch resistance, Lesser surface abrasion & more stain absorbing tendency as compared to glazed tiles. Remaining technical parameter like W.A. & MOR would remain same for both.

What is ISI Mark & what are the advantages of it?

ISI is not a trade mark. ISI is stamp of reliability, allowed to be used by manufacturers, by Bureau of Indian standards, to those manufacturers who produce there products as per the standards laid down by Bureau of Indian Standards. They allow them to use the sign with a certain Individual registration number. ISI mark gives authenticity of quality product. OBL product is ISI marked under Licence No. CM/ L- 8700002408

Can vitrified tiles be laid on wall?

Yes, Vitrified can be laid on wall without any hesitation provided laid with better quality of tile adhesive

Which tiles should be recommended for hills area?

Tiles with least W.A. can be re-commended for hill area due to lesser moisture expansion tendency. Our FT / GVT are more suitable for hills area

Why tiles should be laid with Tiles Adhesive instead of Cement in renovation work?

Laying the tiles with adhesive is strongly recommended, as cement is rigid & not flexible to thermal changes where as tiles usually changes up to some extent due to moisture expansion or change in ambient temperatures, result may lead to develop crack or may leave the wall or floor. Therefore tiles should be laid With polymer based tile adhesive of known brand.

What Precaution if laid Tiles with Cement?

Laying Tiles with cement, please use CEMENT and MORTAR in the ratio of 1:3; add some water to create a consistent paste. Apply very thin slurry on the back of it. Prior to fixing, the tiles should be immersed in clean water for 15 – 20 minutes

Disadvantage of white Cement over tiles grouts filled in tiles joints?

White cement comes out from joints or may crack due to shrinkage property of cement as a result Joints becomes dirty (black) due to deposition of dirt & moisture. Therefore, Joints should be filled with quality grouts of branded company, instead of white cement

Which grout should be used in Cool Tiles & Germ Free Tiles?

Any Light colour grout (with admix) should be used in Cool Tiles & Epoxy based. Grout should be used in Germ Free tiles which are highly resistant to bacteria and fungi attack.

Which tiles should be recommended for Swimming Pool?

Usually 200 x 300 mm (Glossy) wall tiles or 300 x 300 mm (Glossy) floor tiles are recommended for swimming pool. Technically Glossy floor tiles are more suitable for swimming pools due to lesser tendency of deposition of algae & higher strength.

Which grout should be recommended for Swimming Pool?

Any colour epoxy based/ admix based quality grouts should be used in swimming pools.

What will happen if tiles we relaid with Thick cement?

Tiles should be fixed by applying very thin slurry on the back of it. If heavy slurry is applied, cement will pull the body of tile inside while as the glaze surface will remain constant that may lead to developing crack (Crazing) on the glaze surface.

Therefore, Tiles should be fixed by either applying very thin slurry or mixer of cement & sand on the back of tiles

What is difference between PVT and Double Charge (DC) tiles?

PVT tiles are produced by Soluble Salt Technology. SST is an older and cheaper technology and is meant for tiles placed in medium traffic areas. In this process, yet unfired tile body is given a liquid color screen-printing to create the design on the tile. It is called Soluble Salt Technology because soluble salt is used for giving the tile a particular pattern and color. With this technology 2 – 2.7mm print penetrates into the tile. Once the tiles have been fired and polished to create a glossy surface, approximately 0.7mm of the soluble print is shaved off, leaving a total print penetration of only 1 to 2 mm.

Where DC is a type of vitrified tiles in which the press feeds two or more colour body dust to create the pattern with double layer of pigment up to 3 to 4 mm. So far design layer becomes 3 to 4 mm thicker. DC tiles have long life compared to traditional soluble salt tiles. Double Charge technology is more advanced than SST This makes double charge vitrified tiles tiles ideal choice for heavy traffic area as compare to PVT.

Why spacer should be used between the tiles?

Tiles are non engineering product therefore, each & every tile may have little bit permissible size & warpage tolerance, which cannot be neglected, to avoid this & for satisfactory visual laid appearance we should apply required spacer between the tiles. Ceramic tiles have moisture expansion up to some extent, may expand as comes in contact with excess moisture. If we do not use spacer, either tile may break due to mutual collision or may elevate.

Should spacer be used in rectified tiles also?

Yes, we should use spacer in rectified tiles also. We may use thinner (2-3 mm) spacer in rectified tiles as compared to thicker ( 4-5 mm) spacers to be used in unrectified tiles.

What Group (PEI Class) 5 denotes in Tiles?

Porcelain Enamel Institute (PEI) rating scale is not a measurement of quality. It is a scale that indicates the areas of use where tiles to be laid. A PEI 2 tile has been designed for areas where low traffic & soiling is anticipated. Conversely, a PEI 5 tile has been designed for abusive extra heavy foot falls area like malls, airports & railways stations etc.

Which tile is better out of PVT/ DC/ FT & Why?

Above mentioned three tiles have almost equal strength (MOR). PVT and DC tiles are polished tile. Polishing process makes their surface little bit soft & surface has micro porous that may absorb stains if not cared properly. Polished tiles surface have more tendency of wearing & tearing & getting scratched as compared to Glazed Tile Surface. Whereas FT tiles are coated with special corundum base coating that makes it’s surface more scratch resistance (8 on Moh’s Scale) & fit for heavy (Group V tiles) foot falls areas. Moreover, Glaze tiles have more design options than PVT/DC. In totality, FT is far better than PVT and DC.