RAWMAT® HDB
RAWMAT® HDB is a waterproofing membrane used to control the passage of liquids above and below ground.
The membrane is based on a central core of pre-hydrated natural sodium bentonite, a clay mineral that is a volcanic ash, millions of years old, naturally occurring in the ground. In normal use it will out-live the structure or application to which it is applied.
Would you like to know more? Here's an Introduction to RAWMAT® HDB
Type S Range
A factory pre-hydrated sodium bentonite membrane for the waterproofing of below-ground structures in accordance with BS8102 : 1990 where an oversite blinding has been specified.
Type P Range
A factory pre-hydrated sodium bentonite membrane for the waterproofing of below-ground structures, walls and roofing projects in accordance with BS8102 : 1990 in Structural Waterproofing applications, the lining of small ponds and lagoons in Landscaping applications, and an effective barrier used to prevent the seepage of any cooling oil into the ground below for Environmental Protection applications. The membrane also provides the containment of fuels, oils and other hydrocarbons when used in Petrochemical Lining applications.
Type PP Range
A factory pre-hydrated sodium bentonite membrane for liquid and contamination containment applications in areas of fluctuating ground water tables, typically in Petrochemical Lining applications but also in Landscaping and Environmental Protection product applications.
Type SF Range
A factory pre-hydrated sodium bentonite membrane for the waterproofing of below-ground structures in accordance with BS8102 :1990, which is used for the protection of underground structures in areas of fluctuating ground water tables.
Slabseal Range
A factory pre-hydrated sodium bentonite membrane for the waterproofing of below-ground structures, walls and roofing projects in accordance with BS8102 : 1990.
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All information contained within this site is given in good faith and is correct to the best of Rawell Environmental Ltd.'s knowledge. However, this information is not legally binding and may be changed at any time without notice. Rawell offer a free advisory service, please Contact Us for more details. RAWMAT® and RAWSEAL® are registered trademarks of Rawell Environmental Ltd.