MAPEI’s Topcem is a rapid-drying special hydraulic binder which is a cement replacement and mixed with graded aggregates and water. Mapei Topcem can reportedly be foot-trafficked within 12 hours and is suitable for the installation of ceramic tiles after 24 hours, stone after two days and resilient floorcoverings and wood after just four days irrespective of the screed’s thickness.
Screed containing Mapei Topcem, available in 20kg bags, can be installed as a bonded, un-bonded or floating screed and is suitable for use with underfloor heating.
It can also be installed thinner than conventional screeds. For bonded screeds ensure excessive moisture isn’t present within the substrate and contact Mapei’s technical services department for further advice.
Topcem is said to have provided a fast-track solution on a range of projects including sports venues such as Wimbledon Centre Court Hospitality Areas, Heathrow and Gatwick airports, and commercial buildings as well as several hospitals and schools.
Where space and access are an issue Mapei’s Topcem Pronto, available in 25kg bags, is a ‘just add water’ alternative which can eliminate storing bulky sand and aggregates near to sites such as shopping centres. Contractors can simply bring to site the amount of Topcem Pronto which will be used in one day and take any surplus away on a daily basis.
Topcem Pronto is also accredited with GEV Emicode EC1R certification for low emissions of VOC as all of the aggregates used are sourced internally and controlled by Mapei.