
	Safety-Glass is a special finished float glass. It is manufactured fully automatically as an industrial product in huge production lines (about 1.2 km long), at a melting temperature of about 1600° C. Similar to the steel worker’s blast furnace, a glass furnace is designed to have a useful life of about 10-11 years in which tons of flat glass sheets roll off the conveyor belt around the clock, day in day out. They are picked, loaded and transported to the glass processing industry by road, rail and sea. Here, they are cut to size and the edges are worked. It is only at this stage that they arrive at our workshops for use in our production. We use flat glass as tops for our club tables and the securitised variety for almost all dining room tables. Safety-Glass (single-pane security glass) is noted for its high impact and flexural strength. It is normal float glass which has been subsequently securitised in a thermal process. The result of this process is that should the pane break, it disintegrates into small grains which reduce the risk of injury to a minimum. Large, sharp pieces can no longer be formed. Non-liability with glass break A glass plate breaks always by injury of its surface, particularly by a damage of the edge. From here a cracking develops and in its consequence, quite also time-delayed, a plate breaks. It has to be paid attention to a sensitive handling of the plate. In this context incorrect plates could not survive a transport from the factory to the customer. They would break inevitably by the vibrations on the transport. For this reason we ask for understanding, we can´t assume liability for a plate break after putting into use. The disadvantage of this process is noticeable optical impairments. Undulations, streaks, rainbow-coloured reflections, tiny punctures, small blisters and ingrowths as well as fine scratches all go to make up the appearance of this type of glass. Panes are not perfectly even and edges can show slight irregularities. Tables consisting of joined panes can have slight differences at the pane joints. Unfortunately, these irregularities cannot be fully prevented by the glass industry on technical grounds. We believe that these minor optical impairments are acceptable in view of the far greater safety afforded. The high quality requirements for this material, especially in furniture manufacture, have to do with a special perspective which is contrary to other glass processing companies. For the window manufacturing industry and facade design, the deciding criterion is transparency. The eye wants to see through it; it focuses on the object behind the glass panel. In the furniture manufacture it is different, as a rule. Here, the glass pane itself, as part of the piece of furniture, is the object of contemplation due to which even the smallest irregularity is noticed and, often, becomes a problem. The slightly green light refraction of this type of glass is due to chemical additives to the paste. Its intensity increases in proportion to the thickness of the glass, but it can also change over longer periods during production. Glass produced in different batches can have quite a different colouring. The edges of normal float glass are always dark-green. It is only very recent that the glass industry has begun to offer so-called white glass in plate thicknesses and sizes which are of interest to the furniture industry. When looking through white glass, it stands out due to the missing green tinge which is caused by the lack of iron oxide in the glass flow. However, the glass edges still have a light, turquoise-blue shimmer. According to DIN 1249 ESG single pane safety glass has to be visibly and irreversibly marked. As a rule, this marking is carried out by burning it into the surface or edge of the pane (for instance; car window panes) which is relinquished in furniture manufacture for understandable optical reasons. General care instructions Float glass and Safety-Glass are both a user-friendly as well as sensitive product, resistant to virtually all normal household acids and alkaline and easy to take care of with conventional non-abrasive cleaning agents. As part of our range of care products, DRAENERT offers a special cleansing foam. Dull rings on the surface of the glass mostly come from chalk deposits in water and can be easily removed with a non-abrasive de-scaling agent. However, glass can be easily scratched through mechanical influences or even break through mishandling. A few basic principles in handling glass furniture Glass tables have a similar load-bearing capacity as comparable tables of a different construction, but should not carry more weight than for normal purposes. Please never use glass tables as a seat. Glass tables are not a children’s toy. Glass should never be subjected to extreme temperature changes (e.g. a hot pan or frozen bottle). This could lead to spontaneous breakage. Please use mats. Take care with ceramic, porcelain or diamond rings, their extremely hard edges could easily cause scratches. Please use mats. Damage to edges can result in a broken plate, sometimes after a delay in time. Since the bottom plates of some models could easily be scratched on stone or ceramic floors, PVC slide pads should be used (available on request). top		Product information about floatglass Product information about security glass Product information about bevelled glass Product information about glass lacquered with colours Product information about satinated glass