Ostrica Natural Finish






Ostrica is a stone-effect porcelain tile and forms part of our Tema Range. This tile is offered with a Natural finish. To order a Ostrica tile sample in Natural finish click the Order Sample button below.

Ostrica Product Story

Inspired by a million years of rock movement, Tema is a captivating and highly regarded stone-effect collection. Displaying the authentic structure and irregular layers of metamorphic rock, Tema is available in four on-trend colours, ranging from the dark hues of Ossidiana and Cafe, through to the lighter tones of Ostrica and Perlato. This contemporary colour palette makes Tema particularly suited to warehouse conversions, urban living and live/work spaces. Available in four sizes including a large format 1200 x 1200 mm square slab, Tema is also applicable for use with underfloor heating systems. Together this creates an imposing backdrop for residential, public and retail developments, whilst remaining comfortable underfoot and warm to the touch. Ostrica is part of our Stone-effect Collection.

Size & finish

Cafe | Ossidiana | Ostrica | PerlatoNatural1200 x 1200 x 10.5
Cafe | Ossidiana | Ostrica | PerlatoNatural600 x 1200 x 10.5
Cafe | Ossidiana | Ostrica | PerlatoNatural600 x 600 x 10.5
Cafe | Ossidiana | Ostrica | PerlatoNatural300 x 600 x 10.5

Related Tiles

In addition to Ostrica, we also offer a number of other brown stone-effect porcelain tiles.

Discover similar tiles

Alternative Colours

The Tema Range is also available in the following colours and finishes:

  • Cafe – Natural
    Cafe – Natural
  • Ossidiana – Natural
    Ossidiana – Natural
  • Ostrica – Natural
    Ostrica – Natural
  • Perlato – Natural
    Perlato – Natural

Special Pieces & Mosaics

Skirting TileCafe | Ossidiana | Ostrica | PerlatoNatural60 x 1200 x 10.5
Skirting TileCafe | Ossidiana | Ostrica | PerlatoNatural60 x 600 x 10.5
Step TileCafe | Ossidiana | Ostrica | PerlatoNatural325 x 1200 x 10.5

Technical Specification

Shade Tone Variance

Tema has been classified: V2 variation

Understanding Shade Tone Variance

porcelain tile shade tone variation

Shade, texture and tone can vary from piece to piece within a single tile production run. V1 shade tone variation has little or no change from piece to piece where a V4 might have a substantial variety of shade, texture and tone variation.

Variance RatingDescription
V1Uniform Appearance
V2Slight Variation
V3Moderate Variation
V4Substantial Variation

Pendulum Test Values (BS 7976-2)

FinishConditionsResultSlip Potential

Understanding Pendulum Data

The HSE Approved Pendulum Test accurately replicates the Dynamical Coefficient of Friction (COF) or 'Heel Slip' on floor surfaces and is designed to replicate a pedestrian heel strike, the point at which most slips occur.

The pendulum test readings obtained are referred to as either the Slip Resistance Value (SRV) or Pendulum Test Value (PTV). When the test is operated properly, the PTV should be interpreted as shown in the table below. This table relates to pedestrians walking in a straight line on a level surface. It can be used to accurately test the slip potential on dry or contaminated floors.

PTVSlip Potential
0 - 24High
25 - 35Moderate
36 +Low

See British Standard BS 7976-2 for more information on conducting Floor Pendulum Testing on pedestrian surfaces. Pendulum Test Certificate available on request.

Ramp Test Values (DIN 51130)

Finish/StyleR Rating ValueFriction

Understanding Ramp Test Data

DIN Standard Ramp Testing (DIN 51130) is an alternative to Pendulum Testing and generally categorised as an 'off-site' activity because of the size and complexity of the equipment required to carry out the test. The Slip Resistance Values (RSV) are factory gate values (based on supplied tiles) and categorised using the Ramp Test (DIN 51130) method which is commonly used by European factories. In this method, a lubricated inclined platform is adjusted to a gradually increasing gradient, and the angle is measured at which a person walking on it slips.

We have deliberately not included the ramp test angles on this page as this information can be confused with the angle that a floor may be safely set to, which is incorrect. The shod test results are quoted as an R Rating value from R9 to R13, which relates to the ramp angle.

R Rating ValueFriction
R13Very high

See the Health and Safety Executives website for more information regarding the Ramp Test procedure. Ramp Test Certificate available on request.

Technical Data

SpecificationTest MethodsRequired ValueAverage Value
Dimensions and AppearanceISO 10545-2Prospect G.1Compliant
Water absorptionISO 10545-3≤ 0.5%0.05%
Flexural resistanceISO 10545-4min. 35 N/mm²50 N/mm² = 509 Kg/cm²
Modulus of Rupture Thickness ≥ 7.5mm: min 1300 NThickness 8.5mm: 2500 N
   Thickness 12mm: 5000 N
   Thickness 14mm: 6500 N
Deep abrasion resistanceISO 10545-6≤ 175 mm³140 mm³
Linear thermic coefficientISO 10545-8Available on RequestAvailable on Request
Resistance to sudden temperature changesISO 10545-9Available on RequestResistant
Crazing resistanceISO 10545-11Always TestedResistant
Frost resistanceISO 10545-12Always TestedResistant
Chemical resistanceISO 10545-13  
Household chemicals and swimming pool water cleansers min. UBmin. UB
Acids and low concentration alkalis From ULA, ULB to ULCFrom ULA, ULB to ULC
Acids and high concentration alkalis Available on RequestAvailable on Request
Stain resistanceISO 10545-14Available on Requestmin. 3

Tema is ECOLABEL and LEED® certified.

Download PDF Catalogue

You can download the Tema PDF catalogue here. Further catalogues are available on our catalogue page. You can call us on 020 8731 6787 or email enquiry@porcelaintiles.co.uk for more information about our Italian porcelain tiles.

Ordering tile samples

To order Ostrica – Natural tile samples please click this order button:

To review your items or to complete your order simply click on the white  tile icon in the top right-hand corner on any page of our website. You will then have the opportunity to review, edit or complete your order. You can also complete your order by clicking on the button below.

Tile samples are provided in 120 x 120 mm or 150 x 150 mm format. For more complex or subtle patterned tiles, we provide 150 x 300 mm format samples.

Environmentally Certified

Porcelain tiles are sustainable and environmentally certified and contain no harmful chemicals. They are made with 100% natural minerals and are frost resistant making them ideal for interior and exterior applications. Combining beauty with strength and possessing an ability to influence both lifestyle and emotion, porcelain tiles have become the new luxury surface covering. Expressing a style that demonstrates new forms of elegance and a versatility that caters for modern and traditional tastes, porcelain has the power to shape design trends.

Our Italian collection is carefully selected and regularly updated and uses the most advanced manufacturing techniques. This ensures we maintain the highest level of quality and performance without harming the environment.

Tema is ECOLABEL and LEED® certified.

LEED® certification

LEED<sup>®</sup> certified

LEED® certification provides independent, third party verification that a building project meets the highest green building and performance measure. All certified projects receive a LEED® plaque, which is nationally recognized symbol demonstrating that a building us environmentally responsible, profitable and a healthy place to live and work.

The LEED® program encourages the adoption of sustainable green building and development practices and promotes a whole-building approach to sustainability by recognizing performance in five key areas of human and environmental health: sustainable site development, water savings, energy efficiency, materials selection and indoor environmental quality.

All porcelain tiles within our collection comply with LEED® certification and are suitable for the LEED® approval process.

EU Ecolabel

ECOLABEL certified

The EU Ecolabel helps you identify products and services that have a reduced environmental impact throughout their life cycle, from the extraction of raw material through to production, use and disposal. Recognised throughout Europe, EU Ecolabel is a voluntary label promoting environmental excellence which can be trusted.

The EU Ecolabel is awarded according to ecological criteria agreed on by experts, industry, consumer organisations and environmental NGOs and verified by independent third parties.

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