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Swelling over the panels is a known problem- now you will know how to fix it DIY
Note! The cosmetic treatment shown in this video is recommended for application only after the problem that caused the moisture has been corrected and the entire substrate (sand / sesame) is in a completely dry state.
The instructional video "How to fix swellings over the panels" is part of a series of instructional videos from the practical school for gypsum works "The workshop for gypsum works". The school is located at Ruppin College in the Hefer Valley and also serves as a mobile school that operates several centers in the country.