PRESSED GLASS 2021-02-05T06:05:36+00:00

Pressed glass

Moncrieff is unique in that we offer a variety of pressed glass making options designed to suit any customer requirements.

The Moncrieff reputation for supplying high quality glass products goes right back to 1865 when the original company was founded. Our customer list, extends from Blue Chip companies such as BP, Shell, and GSK to small companies with a hand full of employees.

Pressed Glass | Products

Some available Finishes

Pressed glass is produced by the process of pressing the glass into a mold to give the desired shape. We offer both hand and machine production options allowing production for 100 to 10,000 units.

Our main glass types:

Soda Glass is the most commonly used glass types it is used in the production of glass shades, bulkheads, hollow vessels, as well, specialists scientific and engineering products

  • Great Availability
  • Perfectly clear
  • Ideal for prisms, patterns and other forms that are required in the glass
  • Non-reactive surface
  • Colours

Borosilicate, often referred to as Pyrex is the ideal material if the product will be exposed to heat or chemical attack

  • Tempering/Toughening
  • Chemical resistant
  • Hand or Machine production
  • Thermal Shock Resistance

coloured glassCOLOURED GLASS
Speak to us about our Coloured Glass options

Please send your enquiry ideally with a sketch and we can advise from there

For more specialized application pleased contact us

Fused Quartz is manufactured by melting naturally occurring crystalline silica, such as sand or rock crystal. The production method is either electrically fused or flame fused. Afterwards, items will appear transparent, translucent, or opaque; making it possible to create a wide range of products.

Vitreous Silica, in all its forms, offers a variety of properties such as:

  • Permeability
  • Extreme Hardness
  • Very Low Coefficient of Thermal Expansion
  • Resistance to High Temperature
  • High Chemical Purity
  • High Corrosion Resistance
  • Extensive Optical Transmission from Ultra-Violet to Infra-Red
  • Excellent Electrical Insulation Qualities

We use opal glass, triplex opal, flashed opal glass for a wide range of lighting applications. Opal glass is an excellent diffuser of light. Our capacity can blow opal glass to a maximum of 600mm. It is also available in flat and tubular glass.

aluminosilicate gauge glassALUMINOSILICATE
Not as widely used as borosilicate, but still an important type of glass. Aluminosilicate is able to withstand high temperatures and thermal shock, and is typically used in combustion tubes, gauge glasses for high-pressure steam boilers, and in halogen-tungsten lamps capable of operating at temperatures of 750°C.

Pressed GlassLEAD
Lead glass looks quite similar to the normal glass and there is not much of a difference between them except for the one thing, lead glasses has lead oxide as the prime ingredient. Lead glass is used extensively to make a huge selection of decorative glassware.

Due to the higher content of lead oxide, pressed glass with lead content has a better optical clarity than the normal glass. In addition to that, glass object with the higher lead content has the more molecular density to the normal crystal. Lead oxide, when added to the molten glass, produces the pressed glass with much higher refractive index than the normal glass.

The traditional English full lead crystal contains at least 30% lead oxide (PbO) but any glass containing at least 24% PbO can be described as lead crystal. Glass containing less than 24% PbO, is known simply as crystal glass. The lead is locked into the chemical structure of the glass so there is no risk to human health.
Lead glass has a high refractive index making it sparkle brightly and a relatively soft surface so that it is easy to decorate by grinding, cutting and engraving which highlights the crystals brilliance making it popular for glasses, decanters and other decorative objects.

Glass with even higher lead oxide contents (typically 65%) may be used as radiation shielding because of the well-known ability of lead to absorb gamma rays and other forms of harmful radiation.


Moncrieff offer both hand, semi automatic and fully automatic blowing facilities. This makes us perhaps the most versatile pressed glass company. Offering volumes from tens up to tens of thousands of units. All with the assurance of 150 years of experience.


At John Moncrieff Ltd we are equally happy dealing with large PLC as we are smaller concerns, all are treated with the same dedication to quality and customer service.


We invite you to send your enquiries. In the first instance please contact us with a drawing or sketch, outlining the usage conditions and an indication of production volumes.