When I pull out a porcelain stonewear piece placed with PEGOLAND PORCELANICO, the piece comes out clean. Does this mean it was not well adhered?
Not at all. When we work with Porcelain Stonewear-type pieces, with almost null absorption, the grip method between the adhesive and the piece is not the traditional one. We need to use a cement adhesive with a high resin content that provides chemical adherence. This type of adherence is not through mortar penetration into pores of the piece, but is superficial adherence.

That is why the piece comes out clean since it does not have through which the mortar can penetrate, but the grip is adequate thanks to the chemical adherence provided by the resins.
Why can I not apply mortar either below 5ºC or above 30ºC?
Mortar application temperature is a very important factor to be taken into account.

We cannot apply it below 5ºC due to several reasons:

-Below this temperature we run the risk of ice crystal formation in the mortar´s water, thereby preventing correct water contribution to the mortar and causing an inadequate setting of cement. This can lead to cracks, lack of mortar consistency, etc.

- Besides, at these temperatures, cement setting is retarded and final resistances are not those achieved under normal conditions. We cannot apply above 30ºC because at these temperatures there is evaporation of the mortar´s water. This renders the final contribution of water to the mortar lower than necessary and, therefore, the mortar is desegregated and without strength, with the possibility of fissures appearing.

To avoid this, when we work in very hot days, we must try to avoid the hottest hours, but rather work early in the morning and late in the evening. In the event of working on a facade on which the sun hits, protecting it with awnings which block out direct sunlight is convenient.
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