Frequently Asked Questions (FAQs)
How does the process work?
We have developed a novel and patented system that is chemical free and uses a combination of heat, time and steam to achieve delamination.
How long does the delamination process take?
The time to delaminate varies depending on the thickness of the laminate. Typically, a laminate comprising 6mm x 6mm toughened or heat strengthened panels with 1.52mm of PVB interlayer will take approximately five minutes once the system is up to operating temperature. A thicker laminate will take slightly longer and a thinner composite, slightly quicker.
What is the energy consumption?
We have designed our system with heating elements that can be operated as individual zones to suit the size of glass being delaminated. For example, if you wish to treat laminate ranging from 1800mm x 3500mm down to 500mm x 500mm in size, we would suggest the oven is built with four independent zones. Each zone consumes approximately 35 amps per phase and the amount of zones used is dependent on the laminate size you wish to de-laminate. Using the least amount of zones obviously decreases power consumption.
How much space does the unit require?
The Delam system occupies a footprint approximately 20 metres x 3 metres.
Does the process use any chemicals?
Our system does not use any chemicals whatsoever when delaminating.
Minimum and maximum size of glass
The device has been designed to delaminate high value add product such as tempered glass, glass with holes, edge work, low iron, coated glass, laminate with bevels etc. If required, the system can be customized to treat the sizes you produce. Typically here in Australia, the smallest piece we delaminate is 400mm x 400mm and largest is 1800mm x 3500mm.
What is the minimum glass thickness that can be de-laminated?
The minimum thickness glass that has been successfully delaminated is 1.8mm.
What types of glass can be delaminated?
The current system can treat tempered, heat strengthened, printed glass, glass with holes, bevels etc. We have successfully treated curved glass (including car wind shields) and photo-voltaic cells. Annealed glass can be treated but needs a different equipment set up to prevent thermal issues. Annealed glass has been successfully treated but we need to continue with development work to maximize yield.
What interlayer types can be de-laminated?
We have successfully delaminated glass with the following interlayer types: Poly Vinyl Butyral (PVB), SentryGlas Plus (SGP) and Ethylene Vinyl Acetate (EVA)
Is it possible to delaminate multi-laminated glass?
Yes, it is possible to delaminate multi-laminates (eg. security glass, bullet-proof glass) and this has been done successfully with the components then re-laminated and installed in the field.
Is it possible to delaminate broken glass?
Yes, in general, glass with small amounts of cracking/breakage can be delaminated but shattered glass cannot be de-laminated.
Are the de-laminated glass panels re-usable?
Yes, the glass is delaminated without damage which is what makes the technique so unique. We have a method for removing the interlayer that is chemical free and quick and once cleaned the components can be re-laminated in the usual manner. The interlayer that is removed from the laminate is free of any glass contamination, therefore it can be sold to be used as a binder or potentially even back to the manufacturer of the PVB for recycling.
Is it possible to remove film coatings on one side of the glass surface?
Our system is not designed to remove film coatings.