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Rawell Environmental, Ltd.
Rawell Environmental Limited is one of the worlds premier suppliers of bentonite based waterproofing materials. In fact it has been trading longer than most of the current suppliers of bentonite membranes having been formed over 30 years ago.
Where Rawell stands alone however is the form in which its products are supplied to the customer. The RAWMAT® HDB membranes and RAWSEAL® waterstops are unique in that they are the only bentonite products that are non-granular, pre-hydrated and manufactured by vacuum extrusion, a process which Rawell patented in the early 1990’s. Therefore the central core of natural sodium bentonite is already an impermeable barrier and does not require liquid to be added on site.
Rawell was founded by its current Chairman, Bryan Flynn, in 1976. After many years of experience in construction and civil engineering, including the construction of a bentonite processing plant, Bryan took a change of direction with his company by securing the UK distribution rights for the soil sealing and below ground waterproofing products of a large American mineral company.
Rawell developed a prosperous market and made bentonite waterproofing an established method of construction across the UK with a project list and client base of household names like The Channel Tunnel, Canary Wharf and BNFL. This market penetration was achieved and maintained by its high quality service and attention to detail.
In stock
RAWMAT® Slabseal consists of a non-woven perforated scrim layer, a factory pre-hydrated natural sodium bentonite central core and a thin polyethylene layer. The scrim allows intimate contact between the bentonite core and the concrete to which it is applied, the polyethylene layer prevents ingress...
Group: Elastic Waterproofing
In stock
The RAWMAT® HDB Type PP material consists of a non-woven perforated scrim layer, a factory pre-hydrated natural sodium bentonite central core and another non-woven perforated scrim layer. The scrim allows intimate contact between the bentonite core and the concrete to which it is applied.
RAWMAT®...
Group: Elastic Waterproofing
In stock
The P1 series of membranes are produced in rolls of 1m width, 5m long, and can be handled manually.
The P2 series of membranes are produced in rolls of 2m width, 50m long, and lend themselves to swifter coverage.
RAWMAT® HDB Type P can be used for small ponds, and Type P2 for the lining of large...
Group: Hydro-insulators
In stock
It is used as an additional mechanical protection and UV-protective layer on steel surfaces coated with STOPAQ® Wrappingband CZH. The lining is 2mm thick and will cure under UV-light and sunlight, and form a hard, impact-, chemical- and weather-resistant surface.Features
Excellent impact and...
Group: Coatings for water-proofing
In stock
RAWSEAL® SQ 25 Green is the standard product which should be encapsulated in concrete as part of a continuous concreting operation. SQ 25 Black
RAWSEAL® SQ 25 Black is a weather-resistant waterstop, the enhanced formulation will enable the profile placement up to 5 days prior to the confining...
Group: Waterproofing materials
In stock
RAWSEAL® TR 35 is supplied in 1m lengths with a triangular profile of 35mm by 35mm by 49.5mm.
RAWSEAL® TR 35 waterstops are available in two performance grades distinguishable by colour.
Group: Waterproofing materials
In stock
A versatile monolithic coating in wrap form for above-ground and underground use.STOPAQ® Wrappingband CZH
STOPAQ® Wrappingband CZH is used to protect objects such as couplings, flanges, lifting lugs, thermite welds, pipelines and pipe joints.STOPAQ® Wrappingband CZ
STOPAQ® Wrappingband CZ is the...
Group: Coatings for water-proofing
In stock
Rawtape is a cross-weaved tape offering high levels of adhesion and tensile strength.
Group: Materials insulating
In stock
Rawpaste Mastic is a pre-hydrated sodium bentonite mastic which can be applied to seal cuts and penetrations in the membrane.
The compound is normally used to seal around pipe penetrations through the membrane in the floor and on vertical walls, around pile caps and to seal overlaps and cuts in...
Group: Materials insulating
In stock
The S1 series of membranes are produced in rolls of 1m width, 5m long, and can be handled manually.
The S2 series of membranes are produced in rolls of 2m width, 50m long, and lend themselves to swifter coverage.
Type S materials are mainly used in Structural Waterproofing applications.
The...
Group: Hydro-insulators