Styrodur can only conditionally grind

When Styrodur is used as an insulating material, sanding is almost never necessary. In other uses such as in model making shapes are created. Unlike the "crumbly" Styrofoam, the finer Styrodur structure can be sanded. A roughening of the surface is unavoidable and must be smoothed again.

Expanded and extruded polystyrene

Styrodur is extruded polystyrene, called XPS. The inner structure of the plastic is finer than that of expanded polystyrene, styrofoam or EPS. Styrofoam can not be grinded at all, as the "bubble-shaped" structure leads to crumbling.

Styrodur differs but is not completely dissimilar in its response to abrasive and abrasive agents. The crumbling takes place through the finer structure body only in a smaller frame. During grinding, the surface is "torn open". In the process, she roughens and a kind of plastic dust is created. The consistency of Styrodur can be described as a hard foam.

Grinding with creative random potential

Modeling hobbyists often use Styrodur to create landscapes. If, for example, cone shapes are to be created to set up mountains, it is thought of loops. Styrodur is generally better cut than sanding. Fine modeling with modeling plaster is easy to apply on ground and rough Styrodur surfaces.

When sanding "random" grooves, cracks and roughening. They can be used as a design tool. Grinding mimics the weathering of the natural prototype. Creativity and improvisation turn polished Styrodur into the personal Grossglockner or the modified Zugspitze.

Preparation for surface design not required

Styrodur insulation boards do not need to be sanded before painting, painting and wallpapering. Primers, paints and varnishes are applied to the clean surfaces without pretreatment.

As with model making adjustments are made by cutting. This also applies to the cutting of plates in the millimeter range. A roughening of the abutting edges would complicate and interfere with the dense and level assembly of the plate sides and can lead to defective edge corners.

Tips & Tricks

When working with Styrodur using fissuring or cutting methods, you should wear respiratory protection. The resulting vapors are not life-threatening, but also not health-promoting.

Product Image: Olga_Ionina / Shutterstock

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