Technicalities

DULVER ® can be considered a “solid-surface” 2.0. On one hand it has all the features that have made the success of these composite materials, beginning from reproducing the effect of natural stone; on the other hand, the core of the new patented formula has added new distinctive as innovative features from the lightness which makes Dulver ® artifacts able to float on water till the opportunity of coloring in the mass pieces with any type of RAL (or RAL combination). Without any gelcoat, the material (though colored) could be repaired by means of scotch-brile.

NB Table of laboratory results obtained from tests carried out at CATAS Spa (www.catas.com), considered today the largest Italian institute for research and testing in the wood and furniture industry. Tests have been conducted in accordance with European standards (UNI), international (ISO) and national (EN, DIN, BS, NF, ASTM, ANSI, etc.)..

PROPERTIESTEST METHODRESULTUNIT OF MEASUR.
DensityUNI EN ISO 1183-1:20050,891 – 1,01g / cm3
HardnessEN ISO 868:200370 -> on a scale from 1 to 100, where 100 defines the maximum surface hardnessShore D
Flexural strengthEN ISO 178:201119,9 -> it takes more than 200 kg to break a sample of Dulver® dimensions 6 cm x tickness 0,5 cm it in bendingMpa
Modulous of elasticityEN ISO 178:20111.587 -> higher this value is, the more the material is durable and rigid but also fragile.Mpa
Tensile strengthEN ISO 527-1:199611,5 -> It takes about 124 kg to break a sample of 2 cm thickness 0.5 cm.Mpa
Elongation at breakEN ISO 527-1:19960,76%
Linear thermal expansion coefficentASTM E 831:201251,8 – 57,5 -> for each degree of increase in T the material stretches by 0.051 mm. It ‘a material that does not expand with heatμm/(m · °C)
Thermal shock resistanceUNI 9429:19895 -> after 15 cycles of 24h from +40° C to -20° CNessun difetto
Determination of Charpy impact propertiesUNI EN ISO 179:20101,1 – 1,3 kJ/m2
Determination of water absorption after 6 daysUNI ISO 62:2001 meth. 10,9 – 1,1 -> the weight of the sample has increased less than 1% after 6 days of immersion%
Materials in contact with foodstuffs. Overall migrationUNI EN 1186:2003 Distelled water1,1 – 1,4 -> low limit < 10mg / dm2
Materials in contact with foodstuffs. Overall migrationUNI EN 1186:2003 Ethanol solution at 95%8,1 – 9,3 -> low limit < 10mg / dm2
Materials in contact with foodstuffs. Overall migrationUNI EN 1186:2003 solution reproducing olive oil0,4 – 0,5 -> low limit < 10mg / dm2
Chemical resistance to cold liquidisPTP 53:1995

5

After 16 h contact time with chemical agent

Surface change
Chemical resistance to cold liquidsEN 12720:2009

5
After 16 h contact time with chemical agent

Scale from 1 to 5, where 5 means no change while 1 strong change
Chemical resistanceEN 14688:2006 p5.5No defectsSurface change
Light FastnessUNI EN 15187:2007

3 No defects

Grey scale, from 1 to 4

The manufacturing process of DULVER exploits IVM technology (vacuum injection molding), which has been designed for it: a computerized production cycle that allows to inject DULVER® into the mould to get any desired shape of the finished product. Dulver ® is resistant to acids, stains, suitable to come into contact with food according to the prescriptions of the Law, it doesn’t leave any type of particle in the atmosphere, it is not porous and it does not allow absolutely the growth of fungus or other pathogens.