Practical example cases of damage

Thermal fracture

Thermal fracture caused by lamination with a foil


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Torsion fracture

Torsion fracture of a single glass pane in a sliding door caused by suitcase impact


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Edge pressure fracture

Edge pressure fracture caused by too tight glazing in the frame


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Drilling fracture

Overloading in the drilling area of a bannister handrail


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Widespread pressure cracks

Widespread pressure cracks caused by small format


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Impact fracture

Fracture caused by hit with burglar tool


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Nickel sulfide embedding

Fracture of a safety glass pane caused by a nickel sulfide embedding


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Microscopically enlarged view of a nickel sulfide crystal


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Foil delamination

Foil delamination at the edge of a laminated sheet glass pane


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Delamination of PVB foil caused by free exposure


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Impression of bending shape

Impression of the bending shape with glass that has been bended at too high a temperature (grid below the light spot)


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Scratches on glass

Improper attempt of removing a mortar or paint deposit (light spot in the scratch area)


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Brush marks from an orbital sander in the border area of a wood moulding that requires cleansing


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Anisotropies (leopard spots)

Leopard spots in a safety glass pane (lamellar in the pane center)


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Leopard spots in a safety glass pane of a bannister glazing


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Leopard spots in a safety glass pane of a roof glazing


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Leopard spots in safety glass panes of the four layered doors of a folding door


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Corrosion

Corrosion of glass panes caused by alkaline elutriation from the plaster by rain


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Dampening of laminated film

Spot-shaped dampening of laminated film of laminated glass around an impact spot caused by vandalism


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Delamination of cast resin

Delamination of cast resin due to diluent migration from the insulation glass adhesive


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Circle-shaped delamination of cast resin caused by tension due to improper hardening


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Leaky insulation glass

Milky insulation glass as the result of a leaky edge laminate caused by moisture in the window frame


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Interrupted butyl band at an insulation glass distance piece


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Interferences

Colourfully fluorescing interference phenomenons on insulation glass with 2 x 4 mm uncoated float glass from one charge


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Dampening of fire protection glass

Moisture migration into a fire protection layer caused by damaged edge protection


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Wallner lines

Typical Wallner lines on the glass edge running from the point of origin of the fracture to both sides


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Vandalism

Typical glass fractures caused by vandalism (stone throw)


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Axe impact marks on a laminated sheet glass pane in a petrol station door


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Destruction of a phone booth with a hard object


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Optical distortion with bended security glass

Optical distortion with bended security glass


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Bullet hole

Typical shape of a bullet hole


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Residual strengths

Residual strengths in the barrier/bottom transition zone of a glass vase (polarized light photograph)


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Residual strengths in the opening/barrier transition zone of a glass container (polarized light photograph)


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Mirrors

Damage to mirroring layer caused by moisture infestation


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Rough cut

Detail view of a roughly cut glass edge


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Detail view of an origin of fracture at the roughly cut glass edge (enlargement factor 10)


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Suction cup casts

Suction cup casts made visible by condensation


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Colour deviation

Colour deviation of laminated insulation glass caused by improper fitting


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Rollerwaves

Rollerwaves in an improperly tempered safety glass pane


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