Styrbit 2000 K

Name: Styrbit 2000 K
Brand: NEXLER
SKU: W-BR003-A0000-NX2C-2000

Adhesive for polystyrene and waterproofing

Application:

Bonding of sandwich layers (EPS/roofing felt), styrofoam boards, mineral wool and other thermal insulation materials for concrete, bituminous (including felt) substrates, trapezoidal sheet metal etc.
Ability to bond roofing felt to roofing felt
Waterproofing of underground and ground-level elements of buildings

Properties:

Safe in contact with EPS and XPS
Modified with SBS rubber
Very good adhesion to the substrate
Can be applied on slightly damp substrates
Resistant to aggressive substances contained in the soil
Can be used all year round

Available packaging:

20 kg

Composition	mixture of asphalts, solvents and performance additives
Density	1,40 - 1,50 g/cm³
Number of layers	1 for bonding felt from 2 to 4 for waterproof coatings
Thickness of application of a single layer	0,5 - 1,3 mm
Water content	no more than 0,5% (m/m)
Flowability at temperature (60 ± 2)°C and inclination of 45° after 5 hours - roofing felt bonded with asphalt binder	unacceptable displacement of the roofing felt and leakage of the binder
Flexibility when bending on a roller with a diameter of 30 mm at temperature -5°C	no scratches or cracks
Pensky-Martens flash point	no less than 40°C
Adhesive strength of the roofing felt to roofing felt	no less than 150 N
Drying time	approx. 24 h - waterproofing 14 days - EPS, XPS board bonding
Application temperature	from 5°C to +35°C
Reference document(s)	PN-B-24620:1998; PN-B-24620:1998/Az1:2004

The product is intended for outdoor use.
The temperature of the substrate and air during the works should be from +5°C to +35°C.
The product in the winter version can be transported and stored at a temperature not lower than -5°C and applied at the ambient and substrate temperature not lower than 0°C. This temperature must not drop below zero both during application and during the drying of the product.
It is allowed to use the product at negative temperatures, provided that the substrate was dry before freezing and is free of ice, frost.
During the works, very good ventilation of the work area should be ensured.
A substrate to Styrbit 2000 K compound can be a mineral and bituminous substrate (including felt).
The substrate intended for product application should be continuous, bonded, seasoned and load-bearing. The substrate should be cleaned mechanically; dust, any loose layers, sharp protruding edges and impurities that worsen adhesion should be removed. If there are cavities in the substrate, honeycombing, gravel pockets and other unevenness, the substrate should be levelled and the cavities should be filled. If levelling of mineral substrates is required, use polymer-cement mortars from the NEXLER RENOBUD R line. The prepared substrate, intended to be insulated with materials sensitive to organic solvents, should be primed with NEXLER BITFLEX Primer solution; otherwise, the substrate should be primed with NEXLER Penetrator G7.
A felt substrate should be repaired, levelled, any impurities should be removed from the surface before the application of thermal insulation. Blisters should be cut and glued with Styrbit 2000 K, tears and cavities should be filled with NEXLER Arbolex Aqua Stop roofing putty. Old roofing felt coatings should be primed with NEXLER BITFLEX Primer. When bonding thermal insulation for sheet metal, the surface should be cleaned, loose maintenance or decorative layers and traces of corrosion should be removed and the substrate should be protected with a anti-corrosive coating.

Walls made of small-gauge elements in buildings with a basements: On jointed masonry (e.g. concrete blocks), a levelling plaster should be applied. Prime the prepared substrate with a NEXLER BITFLEX Primer solution.
Check the production date on the packaging before use. The product should not be incorporated beyond its shelf life. The product should not be objectionable (e.g. contain lumps, fibres, discolouration) after opening. After mixing, the compound should be homogeneous and free of lumps and clumps resulting from under-mixing. Do not use a product that bears signs of freezing. The correct consistency of the product is not dry or rubbery. When properly mixed, the product forms a homogeneous coating when spread over the surface with a tool.
Thickness of a layer should be controlled by material consumption control on a dedicated surface. In addition, it is recommended to measure the thickness of the freshly applied sealing layer with special inspection plates, the measurement point should be filled with putty immediately.
Properly made layer, after drying, should be a uniform, clean coating, flakes and other defects, the coating should adhere closely to the primed substrate.
Bonding of polystyrene and laminated polystyrene boards (EPS/roofing felt) to substrates: Styrbit 2000 K should be applied to a surface in spots (10 - 12 spots per 0,5 m² board; 16 spots per 1 m² board) or in strips with a width of approx. 8 - 10 cm, with a notched trowel, keeping 15 - 20 cm spaces between them, in such a way that the joints of the boards are bonded to the surface from underneath. The polystyrene or EPS/roofing felt board should be bonded by pressing it to a substrate in a circular motion.
Bonding mineral wool: Prime the mineral wool on the bonded side with NEXLER BITFLEX Primer. After the primer has dried, apply Styrbit 2000 K to the substrate with a notched trowel, on the whole surface or in strips with a width of approx. 8 - 10 cm keeping 15 - 20 cm spaces between them, in such a way that the joints of the boards are bonded to the surface from underneath. Wait approximately 15 - 20 minutes and bond the board by pressing it to the substrate in a circular motion.
Bonding asphalt felt to substrates and bonding asphalt felt together: Apply Styrbit 2000 K to the width of the bonded felt layer, wait 15 to 20 minutes and spread the applied felt, pressing it firmly to the adhesive compound. Do not forget the 10 cm overlap of felt elements. Brush the top of the joints with Styrbit 2000 K. The product can be spread on a surface with a notched trowel with notch spacing of 4 x 4 mm.
Waterproofing of underground parts of buildings: Styrbit 2000 K should be applied on a previously primed substrate in a minimum of two coatings with a steel float. Uniform thickness (approx. 1 mm) of the applied layer should be maintained. Following layers should be applied after the previous ones are dries. Do not backfill the excavation before complete bonding of the coating. The coating should be protected against mechanical damage, e.g. with polystyrene boards.
Before use, please read the application details in the product's Technical Data Sheet.