Besaflex

Besaflex sealing bands of elastic PVC are characterised by many excellent properties, providing savings over a structure’s lifetime. Flexible, soft PVC has been in use since the 1930s, and its properties are subject to constant research.
Besaflex sealing bands conform to all standard requirements, thanks to which they are broadly used in the construction industry.
They are resistant to acidic and alkali solutions, rotting and all other natural factors.
The broad selection of Besaflex products guarantees water-tightness of day joints and expansion divisions without interference in structural components (rebar).
Nitriflex

The material, from which Nitriflex bands are made of, is manufactured out of high-quality components, as corresponding to norm DIN 18541.
DIN 18541-compliant bands made of Nitriflex are characterised by maximum elongation at break, excellent resistance to chemicals and ageing as well as stable flexibility comparable to the flexibility of rubber.
The execution of diverse band joints is quick and cost-effective. Welding may be done using standard equipment, which is very simple thanks to the very good thermal conductivity of Nitriflex (for this purpose, one should not use heat welders with a power exceeding 300 W for band joining).
Nitriflex bands manufactured according to DIN 18541 may be shaped in various ways, thank to which they can be used for all kinds of structures, even to suit the most stringent requirements.
Elastoflex

Elastoflex seal bands are used of elastomer, or crossed multi-particle polymers with big openings (synthetic rubber), subjected to curing. Due to the crossing process being irreversible, special joining technologies must be used for their joining.
Elastoflex seal bands are perfect for use in structures with moving joints that are under threat of changing loads and low temperatures. Elastoflex insulation corresponds to norm DIN 7865.
Poliflex

Polyethylene bands were designed for sealing of pre-cast components.
This band type does not require the use of joining clamps, thus it can be used independently of the synthetic material insulation used earlier (i. e. mat, film, etc.) for executing joints in concrete structures.
Modified polyethylene bands are characterised by good weldability, resistance to aggressive chemicals and micro-organisms as well as high density. They do not lose their flexible properties in low temperatures.
Thermoplastic elastomer (TPE)

Joining and closing insulating bands made of TPE are characterised by greatest elongation at break, flexibility in low temperatures, as well as resistance to ageing and UV light.
Joining bands of this material is fast and cost-effective thanks to thermoplastic welding and using standard equipment (curing is not required).

BAND CHEMICAL PROPERTIES

Materials for use around potable water supplies

Besaflex sealing bands conform to all standard requirements, thanks to which they are broadly used
The company Besaplast manufactures also bands used in areas, where potable water appears. These are bands made of soft, coloured and flexible thermoplastic elastomer and polyethylene.
They are a fusion of good properties and workability, with additional adherence to Polish national and European provisions concerning synthetic materials and contact with potable water. They can be fully recycled.
Special characteristics:

• non-hygroscopic,
• mechanical properties in room temperature,
• good behaviour also after long-term ageing in water,
• natural colours,
• compliance with EU directive no. 2003/11/EC.

Resistance of materials to selected chemical compounds

+ = resistant
– = not resistant
+/-  partially resistant

If you were looking for selected particular chemical compounds in the material resistance table, but have not found the relevant results confirming the actions of a particular corrosive agent, please contact the Technical Department of sales representatives. Betomax Polska may, at the customer’s request, conduct chemical resistance tests for bands from which sealing bands are made.