Natural stone slabs by impregnation make less susceptible to dirt

Natural stone slabs have a porous surface that absorbs wet dirt in particular. To reduce this property, impregnation reduces the tendency to fouling while maintaining diffusion. Inner humidity can continue to leak. Therefore, the method does not provide complete protection.

Effect of impregnation and sealing

If natural stone slabs were laid or glued, the question arises whether they should be impregnated or sealed. An impregnation leaves the pores open and penetrates into the capillaries of the stone interior. It retards the penetration of moisture and moisture, but does not completely prevent it.

When sealing the natural stone slabs, a kind of continuous, air- and waterproof coating is applied to the surface. It completely protects the natural stone from the ingress of moisture and moisture. Inside and rising from the bottom moisture can not escape.

Task and effect of impregnation

A modern impregnating agent fulfills several functions:

  • Partial closure of capillary openings for reduced fluid absorption
  • Reinforcement or deepening of the original stone coloring
  • Non-stick effect for impacted liquid foreign substances (fats, oils)
  • Uniform distribution of environmental and weathering dirt (patina)
  • Lowering the care required
  • Fungicidal action and reduced attachability of organic substances

Cleanliness and dryness

Ideally, the impregnation is carried out immediately after laying the natural stone slabs. Prior to treating the natural stone according to the instructions of the manufacturer of the impregnating agent, a thorough cleaning of, in particular, cement dust and other dusty deposits is important.

If foreign substances are deposited in the capillaries during impregnation together with the agent, the properties of the natural stone can change significantly. Also important is the complete dryness of both the substrate and the adhesive or mortar and the natural stone itself.

If possible, laying and impregnating in the dry summer is the easiest way to achieve this. In strong sunlight, a shading should be mounted. Most funds take about 48 hours to be optimally distributed in the stone substance. The renewal intervals range from three years for high traffic areas up to an average of five years.

Tips & Tricks

When applying the impregnating agent, take care to remove any surplus quantities immediately. Damp shiny spots or ideally wipe with an absorbent cotton cloth. A rubber puller can aid even distribution.

Product Image: Bernardo Ramonfaur / Shutterstock

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