All RAL color

TECHNICAL FEATURES

Bulk specific gravity: 2.795 Kg/mc

Water absorption value: 10,20 %

Compression breaking load: 113,4Mpa

Elastic tangent modulus: 25,032MPa

Elastic secant modulus: 18,347 MPA

Breaking load due to indirect traction by means of bending: 10,7 MPa

Wear due to sliding friction: abrasion coefficient in Tribometer: 4,37 mm

Resistance to breakage on impact (minimum fall height): 63 cm

Knoop micro hardness: 4825 MPa

PHYSICAL CHARACTERISTICS

Average volume weight - 2.658 gr/cmc

Actual specific weight - 2.856 gr/cmc

Porosity - 6.93%

Average compression strength - 1642 kg/cmq

Frost shattering - 1930 kg/cmq

Resistance to wear - 0.64

Shattering coefficient - 115.8

Resistance to bending - 167.2 kg/cmq

Total breaking load - 0.275 mm

The Lava stone may be subject to variations in shade and occasional “aesthetic imperfections” that are just peculiar characteristic of both natural stone and handcrafted finishing.

The understanding of the gray and enameled lava stone features is a crucial step, through which our partners and our customers will fulfill their expectations as regards quality and beauty.

Buying a lava stone product, you should be aware that the product may, on occasions, include: pinhole cavities, darker spots, green spots, mineral spots, for which there is a tolerance parameter as shown in the photos.

Another peculiarity of the lava product is the possible slight variation in the size, in the range of +/- 1.5 mm, due to the dilatation during the firing.

The enameling process itself may cause a variation in the thickness of the piece, in the range of +/- 0.5 mm.

It is also possible that the pieces bend slightly (2/4mm approximately).