info@cristaleriamarrero.com  |  922 25 92 52

Glass factory in Tenerife, Canary Islands

Half a century of experience in the manufacture of custom glass
Marrero Cristaleros has been manufacturing made-to-measure glass since 1972 thanks to the largest set of machines in the Canary Islands dedicated to the treatment of flat glass. Our machines, from the Bavelloni, Turomas or Gima firms, are considered to be of the first order in the manufacture of glass machinery. All the glass is cut with automatic cutting machines, which guarantees precision in dimensions from the first moment, thus avoiding the first cause of breakage once the product is installed.

01

Curved glass

The glass is bent by gravity in a furnace. As the temperature rises, the glass takes the shape of the mold that contains it. Cristalerías Marrero is the only manufacturer in the Canary Islands of this product.

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03

Laminated glass

Laminar or laminated glass consists of the union of several sheets of glass by means of an intermediate film made with polyvinyl butyral (PVB), ethyl-vinyl-acetate (EVA) and with resins activated by ultraviolet light or simply by mixing its ingredients. This sheet gives the glass additional security against breakage, as the pieces remain attached to it. The glass for railings, anti-theft, bulletproof, glass for swimming pools, glass with images or color, among others, belong to this type of glass.

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05

Silkscreen glass

Silkscreen glass follows a printing process to create a pattern by applying colored ceramic paint to the surface of the glass. This application occurs during the heat treatment of the glass.

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07

Edged glass

It is the work that is done to beautify and prevent us from cutting ourselves by rubbing the edge of the glass.

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02

Tempered glass

With tempering we achieve a glass with high mechanical and thermal performance, without modifying the optical and aesthetic characteristics of the whole. This process gives the glass a resistance of around 5 times higher than annealed glass of the same thickness. The application of tempered glass is essential in facades and curtain walls with high energy absorption solar control glass, street furniture, sports courts, doors, partitions, stairs.

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04

Laminated tempered glass

Laminated glass can be made up of two or more tempered or untempered glasses. If the glasses are tempered, the advantages provided by tempering and lamination treatments are combined: better mechanical resistance, greater safety, manufacturing, etc.

See laminated tempered glass types >

06

Bevelled glass

It is a recess that is made on the edges of the glass, producing a nice gloss and edge effect on its angles. It can be made with shapes and in different widths. From 3.5cm to 1.5 depending on the thickness of the chosen glass.

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Types of glass and its classes

CURVED LAMINATED: Two panes of glass adopt the shape of the mold that contains it by gravity due to the application of high temperatures in an oven. Next, the lamination process consists of joining both glasses with the Polyvinyl Butyral (plastic material), using heat and pressure. The laminate allows that in case of breakage the pieces of glass remain adhered to the butyral, remaining the set inside the frame. With this type of glass, we achieve excellent safety, resistance and acoustic insulation. CURVED TEMPERED: It is a safety glass that is obtained by a simultaneous curving process to the glass tempering process. The tempering process consists of gradually heating the glass to a softening temperature, and then cooling it very quickly with jets of cold air, which gives it greater resistance. This allows that, in case of breakage, the glass is fragmented into small harmless pieces. CURVED MONOLITHIC: We call monolithic glass that made up of a single glass sheet that is obtained by heating flat glass to its point of plasticity, giving it the desired shape using molds. The procedure consists of placing the flat glass horizontally on the mold and once its plasticity has been reached by heating it, its own weight will cause it to adapt and take the shape of the mold. The process ends once the glass has cooled slowly, in order to avoid internal stresses in its molecular structure.
TEMPERED: To improve the structural and impact resistance of a glass, the tempering process is used, which consists of heating it uniformly to a temperature between 550º-650º (softening point) and then cooling it abruptly, with a jet of cold air at controlled pressure on their faces. The surface of the glass cools faster, while the inner zone continues to expand. This process makes the glass more resistant. TEMPERED WITH SOLAR CONTROL: Solar control tempered glass, in addition to having the characteristics of tempered glass, is a thermally reinforced double glass to which a thin transparent layer is added to one of its sheets, in such a way that in addition to the functions of double glass and without impairing the amount of light, it reduces the amount of solar heat (long-wave energy) absorbed by the glass and the amount of solar heat that passes from outside to inside through the glass. Solar control glass is colorless and lets in as much daylight as possible. This differentiates it from tinted or tinted glass, which also serves to control the transmission of solar heat, but has the drawback that it reduces light and visibility, and gets very hot due to the high absorption of heat that it experiences. TEMPERED LAMINATED: Laminated glass can be made up of two or more tempered or untempered glasses. If the glasses are tempered, the advantages provided by tempering and lamination treatments are combined: better mechanical resistance, greater safety, manufacturing, etc. TEMPERED LAMINATED WITH HST: In order to minimize the risk of spontaneous breakage in tempered glass, due to inclusions in the glass mass, it is possible to carry out a ‘Heat Soak’ treatment (HST), which consists of subjecting the tempered glass to a heating cycle at 280ºC with a maintenance time depending on the specified regulations. This treatment causes an accelerated phase change in the existing inclusions in the glass and therefore the breakage of a good part of the glasses that contain these inclusions. The HST treatment is recommended for situations in which the stability and conservation of the enclosure or facade and the safety of users may be affected by the breakage of the tempered glass. It is necessary to highlight the fact that, although the Heat Soak treatment reduces the probability of spontaneous breakage, it does not completely eliminate it, so there is always a certain probability of breakage, and it must be taken into account in the design and use of tempered glass. EXTRA CLEAR TEMPERED: Extra-clear glass is characterized by a low content of iron oxides, which gives it greater light transmission than clear glass, as well as better coloration, making its plates look completely transparent and highly transmissible. Thanks to tempering, the glass obtains greater resistance.

SAFETY LAMINATE: Laminated safety glass is made up of at least two sheets of glass and one or more layers of polyvinyl butyral that are permanently bonded together using a high-pressure, high-temperature lamination process. Laminated safety glass has excellent safety characteristics as, in the event of breakage, the glass fragments adhere to the PVB film, considerably reducing the risk of injury. Laminated safety glass has excellent properties in terms of protection against noise and UV rays.

LAMINATE WITH SOLAR CONTROL: It is a thermally reinforced double glass to which a thin transparent layer is added to one of its sheets, in such a way that in addition to the functions of double glass, without harming the amount of light, it reduces the amount of solar heat, which produces an energy saving. Solar control glass is colorless and lets in as much daylight as possible. This differentiates it from tinted or tinted glass, in that it also serves to control the transmission of solar heat, but has the drawback that it reduces light and visibility, and gets very hot due to the high absorption of heat that it experiences. This type of glass rejects up to 80% of solar energy and the glare that occurs in summer; and in winter, it prevents up to 20% of the interior heat from escaping.

LAMINATED WITH COLORED BUTYRAL: It consists of joining several sheets of glass through an intermediate film made of polyvinyl butyral (PVB), which can be transparent or colored, which enables the combination of different shades and provides an aesthetic personality to the project. This sheet gives the glass additional security against breakage, since the pieces are attached to it. Anti-theft and bulletproof glass belong to this type of glass. This flexibility makes laminated glass an indispensable element in contemporary architecture and design.

LAMINATED WITH DIGITAL PRINTING: Digital printing on glass is an advanced technology that allows images, photos, drawings and inscriptions received on a digital medium to be printed on sheets of glass. It is a high definition print and in hexachromy; In a few words, this type of printing allows the simultaneous use, through a single application, of up to 6 colors, allowing for many different color and shade combinations to be obtained. It consists of the digital printer, using the 6 available colors, applying tiny drops of enamel on the surface of the glass, decorating it with the desired image, the same colors and in high definition. And to complete the fixation of the enamels, the glass is tempered; in this way the enamels vitrify and allow an infinite duration over time.

LARGE DIMENSIONS LAMINATE: It consists of joining two or more sheets of glass by placing a polyvinyl butyral (PVB) film between the glasses and applying heat and pressure. It is considered a safety glass since in the event of breakage, its particles remain united thanks to the plastic sheet, minimizing the risk of causing injuries. It is carried out using the same process as for a piece of smaller dimensions.

EXTRA CLEAR LAMINATE: It is a glass with high light performance, available in various thicknesses for use in buildings and construction work. Resistant to light and UV with a reaction to fire. As it is an extra-clear glass, high-quality finishes are achieved, being able to reproduce pure colors and high-resolution images.

TEMPERED LAMINATED: Laminated glass can be made up of two or more tempered or untempered glasses. If the glasses are tempered, the advantages provided by tempering and lamination treatments are combined: better mechanical resistance, greater safety, manufacturing, etc. TEMPERED LAMINATED WITH HST: In order to minimize the risk of spontaneous breakage in tempered glass, due to inclusions in the glass mass, it is possible to carry out a ‘Heat Soak’ treatment (HST), which consists of subjecting the tempered glass to a heating cycle at 280ºC with a maintenance time depending on the specified regulations. This treatment causes an accelerated phase change in the existing inclusions in the glass and therefore the breakage of a good part of the glasses that contain these inclusions. The HST treatment is recommended for situations in which the stability and conservation of the enclosure or facade and the safety of users may be affected by the breakage of the tempered glass. It is necessary to highlight the fact that, although the Heat Soak treatment reduces the probability of spontaneous breakage, it does not completely eliminate it, so there is always a certain probability of breakage, and it must be taken into account in the design and use of tempered glass.

TEMPERED SILKSCREEN: It is a tempered glass to which one or several layers of paint have been applied, before tempering, which is vitrified at a temperature above 600 º C. This paint is practically INALTERABLE against atmospheric agents and against sunlight. It can be applied on any glass that can be tempered. Its resistance to impact, bending and abrasion are the same as those of tempered glass. It is manufactured in the full range of colors.

TEMPERED OPACIFIED: Opacified glass is used for the glazed area of ​​the facade where the structural components of the building are hidden, such as columns, floors, air conditioning systems, power lines, pipes, etc. that are usually in the false ceilings of the floors of a building. Opacified glass is normally placed between two floors joining the vision glass sections. Curtain wall designs and structural glazing often require the use of opacified glass to achieve façade uniformity. Opacified glass applications can be a similar or contrasting color to the sight glass. This type of glass must be heat treated to prevent breakage due to thermal shock. When using low reflection or high light transmission sight glass, achieving an exact match with opacified glass is not easy. Daylight conditions can substantially affect how the appearance of glass is perceived. For example, on a clear day with a lot of sun, very reflective viewing conditions are given and the coincidence between both types of glass can be seen well. However, on a cloudy day, there may be more visual transmission from the outside and a greater contrast between the vision glass and the opacified glass.

TEMPERED WITH DIGITAL PRINT: Digital printing is a process that involves printing a digital file directly onto glass. This process is carried out with ceramic inks, which through the glass tempering process is vitrified to it, making the paint unalterable over time, resisting humidity, UV rays, etc. This process is ideal for any type of project regardless of its volume. When it comes to small jobs, it eliminates the costs of screen printing.

STRAIGHT BEVEL: Through a process of abrasion and polishing, material is removed from the sides of the glass, resulting in a straight edge of the glass with a decorative purpose.

CURVED BEVEL: The curved bevel is about rounding the edge of the glass with a radius curve equivalent to the thickness of the sheet, then, with the help of sandpaper, the proportion of polystyrene will be reduced.

STRAIGHT EDGE: It consists of mechanically scaling all or part of the edge of the glass, this eliminates sharp edges that can cut and prevents the glass from cracking, as well as facilitating its transport and placement. The surface finish it leaves is shiny for decorative use.

We also carry out industrial edging and sandblasted edges.

CURVED EDGE: Edging consists of polishing the edges of the glass using diamond wheels that give the required shape, in this case curved. With the edging, a smooth and aesthetic finish is achieved throughout the perimeter of the glass, which can be matte or glossy. The type of edging to be done depends on the thickness and shape of the glass.

LARGE SIZE EDGE: It consists of working the edges of the glass by mechanical means. The mechanism and manufacturing process is the same as for a medium-sized piece.