bulletproof glass

Bulletproof Glass

Bullet resistant glazing glass were mostly equivalent to the relative standard of UL 7 52:1995 and referred to BS 5 051: 1988, ASTM F1233:1995.
Bullet resistant glazing glass is tested by Security and Police-use Electronic Product Quality Inspection Center of the Ministry of Public Security, which is the unique testing unit in China, confirming glass quality and security.
Bulletproof Glass (” Bullet Resistant Glass ” or “ballistic glass”) is achieved through the multiple layering of laminated glass wherein several lites of glass are bonded together by polycarbonate material, typically Polyvinyl Butyrol (PVB). It is this PVB interlayer, not the glass lite, which essentially helps sustain a bullet’s blow and slows down its penetration. PVB adds another element of safety by maintaining the structural integrity of the glass construction despite its shattering, preventing otherwise large, sharp glass shards from injuring potential bystanders. Bulletproof glass varies in thickness from three-quarter inch to three inches (19mm to 76mm)
Min. Size: 200mm*300mm
Max. Size: 2440*3660mm or customized
Popular Thickness
8mm glass+1.52mm PVB+8mm glass+1.52mm PVB+8mm Clear Non-tempered Laminated Bullet Proof Glass
10mm glass+1.52mm PVB+10mm glass+1.52mm PVB+10mm Clear Non-tempered Laminated Bullet Proof Glass
12mm glass+1.52mm PVB+10mm glass+1.52mm PVB+10mm+1.52mm PVB+6mm Clear Non-tempered Laminated Bullet Proof Glass
Application
Bank counter, financial system, Curtain wall, shower door, windows, top lighting, balcony fencing, swimming pool fencing…construction glass, Automotive bulletproof glass
al rajhi bank 2
bulletproof glass 2
stained glass

Stained Glass

Stained glass, in the arts, the colored glass used for making decorative windows and other objects through which light passes. Strictly speaking, all colored glass is “stained,” or colored by the addition of various metallic oxides while it is in a molten state; nevertheless, the term stained glass has come to refer primarily to the glass employed in making ornamental or pictorial windows. The singular color harmonies of the stained-glass window are due less to any special glass-coloring technique itself, however, than to the exploitation of certain properties of transmitted light and the light-adaptive behavior of human vision.

Of all the painter’s arts, stained glass is probably the most intractable. It is bound not only by the many light-modulating factors that affect its appearance but also by comparatively cumbersome, purely structural demands.

Why is it called stained glass?

The term stained glass derives from the silver stain that was often applied to the side of the window that would face the outside of the building. When the glass was fired, the silver stain turned a yellow color that could range from lemon to gold. Stained glass was usually used to make windows, so that the light would shine through the painting. It is a form of painting that began over 1,000 years ago and is still essentially made the same way today.

stained glass 4

How stained glass is made?

  1. Drawing

An artist would initially make a sketch of the overall composition of a window. Then full-sized drawings for the whole window or for different sections (panels) of the window were made.  Generally, the shapes of the individual glass pieces, the details to be painted, and the colors of the glass were indicated on the cartoon.

stained glass 1

  1. Cutting

Different colors of glass were chosen for separate parts of the design, and the outline of each piece was then painted on the surface with white lime wash. Pieces were cut into rough shapes using a dividing iron, the heated tip of which was applied to the surface of the glass, causing it to break. The pieces were further reduced to the desired size with a grozing iron—an iron bar with a slot at each end that was used to chip away at the edges of the glass until the exact shape was created.

stained glass 7

  1. Painting

After the glass pieces were cut and shaped, they were painted with a special pigment. Once painted, the separate pieces of glass were placed in a wood-fired oven called a kiln. The heat of the kiln causes the vitreous paint to fuse permanently to the surface of the glass.

stained glass 3

  1. Lead

Pieces of glass are held together with narrow strips of lead to form a panel. These strips are referred to as “lead came.” Lead is used because it is flexible and provides the adaptability needed for fitting around the various shapes of the glass pieces.

stained glass 10

  1. Glazing

“Glazing” is the term for assembling a panel of stained glass that can then be set into a window. After separate pieces of glass are painted and fired, they are placed in position on the cartoon and joined together with lead came to form a panel.

The sections of came are then joined together with solder, an alloy of lead and tin that melts easily at a low temperature and sets quickly.

stained glass 2

  1. Cementing

The panel is then cemented to help secure the glass within the leads and to waterproof the window. A semi-liquid cement is applied with a brush and then is covered with a layer of chalk or sawdust to absorb excess liquid. The medieval recipe for this cement is not known, though the main ingredients were probably crushed chalk and linseed oil. The panel is then scrubbed down with a dry brush until the cement only remains under the lead.

stained glass 5

  1. Scrubbing the panel with a dry brush

stained glass 6

 

Stained Glass Dome

Stained glass domes and ceilings from Hongjia Glass are a unique and interesting way to add color and light to any space. The modular design of our stained glass ceilings and domes allows for us to create them in any shape. The modular pieces can be combined to make any size dome or ceiling you desire. We have lots of designs to choose from us or send your designs and ideas, and we can customize them for you.

stained glass 9

We are happy to answer any questions, talk about options or assist with your unique needs.

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glass countertop

Glass Countertops

Glass countertops are one of the most versatile materials you can use in your kitchen. As you’ll see below, glass countertops are available in a wide variety of styles, colors, and textures. Because it can be shaped and formed into an endless number of different styles, glass pairs well with just about any material and can create some seriously unique designs that stretch the imagination.

glass countertop

Glass countertops are also extremely durable, and because it won’t age over time, there’s no need to worry about visible wear or discoloration. Unlike some natural stone or metal countertops, glass is extremely heat resistant, so you can safely place hot pots and pans right on the surface without worrying about warping or shrinkage. Maintenance is also a breeze because glass countertops aren’t porous like granite or other stone materials. Spills can be easily wiped off without any worry of staining. The lack of porosity also makes glass a hygienic option as there are no cracks or crevices for dirt and bacteria to get trapped in.

 

Many glass countertops are made from recycled materials, making it a great eco-friendly option for homeowners who are concerned with watching their environmental footprint. This also makes it a comparatively cheaper option than natural stone or metal materials.

 

Back-Painted Glass

If you’d like a solid-colored countertop, glass is a great way to have a unique spin on an otherwise simplistic look. Back-painted glass countertops offer a very clean look that’ll complement your sleek modern or contemporary kitchen design.

glasscountertop 4

 

Textured Glass

For a super contemporary look, utilizing glass in its clear state with a textured design is an awesome way to lend a futuristic, unique and eye-catching look to your kitchen. From fun swirls and curlicues to crackled, dimpled or water-like textures, you’re sure to find a look that speaks to your personality and personal design style.

 

Glass with LED

If you love accent lighting and are looking to go way outside of the box with your kitchen countertop, then adding LED lights will surely take your countertop to the next level. For ultra-modern, sleek, futuristic kitchens, back-lit textured glass countertops are a breathtaking sight to behold, especially when paired with a waterfall edge.

glasscountertop 2

Wired Glass

Wired glass is a type of glass into which a wire mesh is embedded during production. Wired glass has an impact resistance similar to that of normal glass, but in case of breakage, the mesh retains the pieces of glass. This product is traditionally accepted as a low-cost fire-resistant glass. Wired glass can be tinted by aerosol or electricity. Common colours are golden-yellow, green, light blue and violet-rose.

Wired glass is manufactured primarily as a fire retardant, with wire mesh inlaid in the glass to prevent it from shattering and breaking out under stress or when exposed to high temperatures. With the windowintact, the glass keeps the fire at bay, protecting those on the other side from the harmful effects of smoke and flame.

However, in recent times, experts warn against the use of wired glassas a fire-resistant substance. This because although the mesh may prevent the fire from penetrating, by itself it could prove dangerous, being made of fine, sharp wires which can hurt. Today, special fire-resistant glass is available, which is devoid of the wire mesh as a component and can cut off not just the fire but even smoke, gases and deadly radiant heat.

Wired patterned glass is widely used to window, door, partition, ect.

 wired glass

Thickness 6mm, 6.5mm, 7mm

Color Clear, amber, bronze, blue, green, grey

Size 2000x1500mm, 1830x2440mm, custom sizes

Applications Window, door, partition, furniture

Certificate CE, ISO, CCC, BS6202

Packing Exportation plywood box

Delivery time 7-10 days

wired glass 1

 

Wired glass is a product in which a wire mesh has been inserted during production. It has an impact resistance similar to that of normal glass, but in case of breakage, the mesh retains the pieces of glass. This product is traditionally accepted as low-cost fire glass.Production A steel wire mesh is sandwiched between two separate ribbons of semi-molten glass, and then passed through a pair of metal rollers which squeeze the “sandwich of glass and wire” together.

 wired glass 2

 

It is looks like laminated glass, there is wire between 2 clear glass layers.

Actually, it is one kind of clear float wire glass, it has standard thickness, and standard size.

Normally our MOQ of this is one crates, and price is basic on the final qty you requirement.

If you are interested in it, please feel free contact with us.

Glazing Systems

Virtually any type of glazing system can be used with structural glass facades. Check out the options

glazing systems

FRAMED

Framed systems support the glass continuously along two or four sides. There are many variations of framed systems, most of which fall into two general categories. Conventional unitized curtainwall systems are seldom used with structural glass facades.

glazing systems 2

STICK

Stick-built glass facades are a method of curtain wall construction where much of the fabrication and assembly takes place in the field. Mullions of extruded aluminum may be prefabricated, but are delivered as unassembled “sticks” to the building site. Mullions are then installed onto the building face to create a frame for the glass, which is installed subsequently. Economical off-the-shelf stick curtain wall products are available from various manufacturers that may be suitable for application in structural glass facades, primarily on truss systems.

 

glazing systems 3

VENEER

Truss systems can be designed with an outer chord of square or rectangular tubing, and may include transom components of similar material, presenting a uniform flat grid installed to high tolerances. Such a system can provide continuous support to the simplest and most minimal off-the-shelf glazing system, thus combining relatively high transparency with excellent economy. A veneer glazing system is essentially a stick-built curtain wall system designed for continuous support and representing a higher level of system integration with resulting efficiency. Variations can include 4-sided capture, 2-sided capture, structurally glazed and unitized systems.

 

glazing systems 4

PANEL / CASSETTE

Panel systems are typically constructed from a framed glass lite. The framed panel can then be point-supported by a supporting structural system, while the glass remains continuously supported on two or four sides. This also allows the panel to be stepped away from the support system — a practice that visually lightens the facade. Panel systems can be prefabricated, benefiting from assembly under factory-controlled conditions.

Cassette systems combine properties of stick, veneer and panel systems. While variations exist, the predominant makeup of a cassette system is comprised of a primary structural mullion system, which is stick built. These provide the support and facilitate the attachment of the glass panels. The glass lites are factory assembled into minimal frames, which form an integral connection with the primary mullion system. A cassette system can be designed to be fully shop-glazed, requiring no application of sealant during field installation.

 

glazing systems 5

FRAMELESS

Frameless systems utilize glass panes that are fixed to a structural system at discrete points, usually near the corners of the glass panel (point-fixed). The glass is directly supported without the use of perimeter framing elements. Glass used in point-fixed applications is typically heat-treated.

 

glazing systems 6

POINT-FIXED BOLTED

The most popular (and often most expensive) glass system for application in structural glass facades is the bolted version. The glass panel requires perforations to accommodate specialized bolting hardware. Specially designed off-the-shelf hardware systems are readily available, or custom components can be designed. Cast stainless steel spider fittings are most commonly used to tie the glass to the supporting structure, although custom fittings are often developed for larger facade projects. The glass must be designed to accommodate bending loads and deflections resulting from the fixing method. For overhead applications, insulated-laminated glass panels require the fabrication of 12 holes per panel, which can represent a cost constraint on some projects.

 

glazing systems 7

POINT-FIXED CLAMPED

Point-fixed clamped systems are a solution for point fixing without the perforations in glass. In the case of a spider type fitting, the spider is rotated 45 degrees from the bolted position so that its arms align with glass seams. A thin blade penetrates through the seam between adjacent pieces of glass. An exterior plate attaches to the blade and clamps the glass in place. The bolted systems present an uninterrupted glass surface, while the clamped systems expose the small exterior clamp plate. Some facade designers prefer the exposed hardware aesthetic. While clamped systems have the potential for greater economy by eliminating the need for glass perforations, the cost of the clamping hardware may offset at least some savings, depending upon the efficiency of the design.

 

double skin facade 2

Double-Skin Facade

The double-skin facade is a system of building consisting of two skins, or facades, placed in such a way that air flows in the intermediate cavity. The ventilation of the cavity can be natural, fan supported or mechanical. Apart from the type of the ventilation inside the cavity, the origin and destination of the air can differ depending mostly on climatic conditions, the use, the location, the occupational hours of the building and the HVAC strategy.

 

The glass skins can be single or double glazing units with a distance from 20 cm up to 2 meters. Often, for protection and heat extraction reasons during the cooling period, solar shading devices are placed inside the cavity.

double skin facade 1

Spider System

With constant development in science and technology, glass curtain walls are finding increasingly more applications and their structures are also experiencing great changes. Fully spider fitting frame-less glass curtain walls, connect glass together in an open space using various types of light/heavy steel structures via various types of spider fitting members to form flexible and unobstructed glass facade. In this way, fully spider fitted glass walls not only maintain the safety of aluminum alloy frame glass curtain wall but also eliminate the disadvantages of the later in singular structure and restrictions from construction structures. As a result they provide unobstructed view as a whole, neat, bright and integrated with such advantages as safety, practicality and artistic taste thus becoming a vogue for modern construction and decorations.

 

Thermally toughened or tempered glass panels are used as single or insulated glass units. In case of single panels laminated safety glass is preferred due to safety reasons. This system consists of a number of accessories with metal arms. At the end of each arm, a sheet of glass is fixed by the corners with a special screw. The vacuum between these sheets is filled up with isolators to overcome mechanical pressure and weather conditions.

 

The rectangular glass sheets have 4 or 6 countersunk drilled holes into which countersunk stainless steel bolts acting as point-fixings. The space between the glass panes are filled with weather seal. The support elements that hold the fitting can be space frame, glass fin, tension cables or steel circular columns to provide the aesthetic effect as desired by the customer.

spider system

Low e glass 2

Double Glazing for Thermal Insulation

What is Low-e Glass?

Glass used in double glazing window for thermal insulation is known as Low E, or low-emissivity glass. It has a transparent metallic coating that works in two ways to economise heating energy. The dual action coating reflects heat back into the room, whilst allowing heat and light from the sun (known as passive solar heat gain) to pass through. Thermal insultion glass should be used on face 2 or 3 of a double glazing unit.

low e glass

U Values

The ‘U’ value of a double glazing window is the measure of its ability to transfer heat – so double glazing windows with the lowest U value are the most efficient insulators against heat loss from a room.

low e glass 1

Solar Heat Gain

The Solar Heat Gain Coefficient (SHGC), which measures a thermal insulation glass’ ability to transmit solar energy into a room, is measured in value from 0 to 1. The SHGC is commonly referred to as the g-value, or solar factor. The higher the g value, the greater a thermal insulation window’s ability to transmit solar heat (see Window Energy Ratings) and thus increase its energy efficiency.

 

Types of Low E Solutions

The most efficient thermal insulation glass use a unique manufacturing process which builds up microscopic layers coating, using a technology known as sputtering, under vacuum conditions. (See online and offline coatings). This advanced process builds up a highly resistant, but imperceptively thin coating which gives it a much clearer appearance than other thermal insulation glass. The coating also allows maximum daylight and heat into the room for optimised solar gain. Some products have been shown to reduce heat loss by 24% more than traditional online coated thermal insulation glass, and by 40% compared to standard double glazing window. Further energy savings can be made by using warm edge ‘thermal break’ spacer bars. These can reduce heat lost around the edge of the window by up to 65%

 

This article quote from http://www.double-glazing-info.com/Choosing-your-windows/Types-of-glass/Low-E-energy-saving-glass

u value or k value

U-Value or K Value

Describes the rate of Thermal energy passing through a material due to conduction, convection,

and radiation under specific environmental conditions.

It is calculated using material thermal conductance and surface emissivity values

which are intrinsically measured.

Lower values describe lower rates of heat energy transmitted through a material

and hence improved insulation values.

For glazed areas, the surface emissivity of glass can be dramatically reduced

by high performance coatings and this is a major factor in reducing this value.

U-Value is expressed in units of Btu/hr ft² °F, K-Value in W/m² °C

and different standardized conditions are used for these calculations.

To convert imperial to metric values multiply by 5.6783

u value or k value

laminated skylights 1

Customized Clear Heat Strengthened Glass For Laminated Skylights

Specifications:

 

Thickness: 3-19mm

 

Available color: clear, bronze, blue, green, gray, black, etc.

 

Max specification:

 

Flat heat-strengthened glass: 3000*8000mm

 

Bent heat-strengthened glass: 3000*5000mm, R=1500mm

 

Description:

 

Wind load, thermal stress. Bring it on.

 

Heat-strengthened glass is less prone to spontaneous breakage than tempered glass. And it’s the product of choice, with the exception of instances where tempered glass or laminated glass is required by law, wind load, local or national building codes.

 

Guardian heat-strengthened glass can be with holes or cutouts to process into Guardian heat-strengthened laminated glass, Guardian heat-strengthened insulated glass, etc.

 

Applications:

 

Suitable for use in spandrel and/or vision areas where added resistance to wind load and thermal stress is required.

 

Laminated solariums

 

High wind load areas

 

Laminated skylights

 

 

 

Competitive Advantage:

 

Approximately twice the mechanical and thermal strength of annealed glass of equal thickness.

 

Greater resistance to thermal loads than annealed glass.

 

Heat-strengthened glass is not a safety glass product.

Customized Clear Heat Strengthened Glass For Laminated Skylights