Huge Egg

Advertising object made of GRP – Giant egg

Eggs and unusual solutions have been a good combination at least since Columbus. For this huge specimen, too, they thought outside the box. Instead of elaborately making a positive mould, which would be difficult to round off, a plastic membrane was stretched onto a two-dimensional mould and filled with air. The membrane was then moulded with GRP in a hand-laminating process. Finally, the system was mounted on a stable base plate.

Weitere Beispiele

These other examples were first milled from polystyrene 5-axis and then glued together in our model building shop.
For the surface you can choose between raw styrofoam, GRP and polyurea. Styrofoam is the cheapest, light but unfortunately not really hard-wearing and only suitable for indoor use. Polyurea is a spray plastic and a cheaper alternative to GRP. An object coated with polyurea can be painted and used outdoors. Due to the spraying process, the surface is more like tangerine peel. If the surface is to be very high quality and smooth, the egg is coated with GRP. Due to the high cost of the surface treatment (repeated sanding/filling), the price is significantly higher than that of the other two variants.

More about surface coating

Hight
1800 mm (6 feet)

Diameter
1330 mm (over 3 ½ feet)

 with fibreglass base plate