Connect NexGreen

One-component polyurethane-bitumen resin resistant to root penetration

Application:

For use in areas at risk of root penetration
For use in the NEXLER NexGreen green roof system
Sealing in “green” areas where balcony and terrace slabs connect with walls
Bonding of different surfaces to achieve waterproofing continuity, e.g. bituminous felt and coatings, sheet metal (including coated and acid-resistant sheets), concrete, hard PVC, EPDM membranes, wood-based panels
Construction and sealing of roof details
Sealing of roof details, internal gutters, troughs, walls, etc.
Repair of various types of roof coverings

Properties:

Resistant to plant root overgrowth
Does not require priming
Can be applied to matt-damp substrates
Very good adhesion to various substrates
High flexibility, even at negative temperatures
High resistance to UV radiation
Safe for use in contact with polystyrene
Quick and easy to use
Watertight
Fills cracks and crevices
Resistant to weather conditions
Resistant to low and high temperatures

Available packaging:

5 kg

Composition	polyurethane-bitumen resin
Density	1,25 g/cm³
Setting time	approx. 2,5 h
Pensky-Martens flash point	no less than 31 - 40°C
Water content	no more than 0,5% (m/m)
Mechanical properties in tension: - tensile strength - elongation at break	> 1,8 MPa > 400%
Low temperature flexibility	-30°C
Resistance to rain	after 30 min
Temperature resistance after curing	from -40°C to +120°C
Application temperature	from 0°C to +35°C
Reference document(s)	PN-B-24620:1998; PN-B-24620:1998/Az1:2004

The temperature of the substrate and air during the works should be from 0°C to +35°C. At lower temperatures, a delay in setting is to be expected, as well as a change in the consistency of the material and as a result of that an increase in consumption. The temperature of the substrate must always be at least 3°C above the dew point temperature until the material is fully cured.
Works should not be carried out during precipitation and strong sunlight. Once a film is formed on top, the product is resistant to moderate rain. The product must not be exposed to water during setting, including water penetrating from the substrate.
Substrates on which Connect NexGreen can be applied include i.a. bituminous felt and coatings, sheet metals (including coated and acid-resistant sheets), concrete, hard PVC, EPDM membranes, wood-based panels.
The substrate must be dry or matt-damp, unfrozen, stable and clean and free from oil, grease, cement laitance, paint coatings, release agents and other substances that impair adhesion. Clean substrates of loose dirt and flaking coatings. When applying the product on dry, hot days, slightly moisten the absorbent substrate. The product does not require priming of the substrate.
Bitumen membranes finished with sprinkles: Clean existing bituminous substrates of loose dirt and other debris. Verify that the membrane is correctly fixed to the substrate.
Sheet metal: Remove rust and any adhesion-impairing coatings from sheet metal and flashings. If necessary, protect against corrosion. It is recommended to roughen the surface with a grinder disc with the exception of coated sheets, e.g. galvanised. Degrease the surface with a solvent, e.g. acetone.
Concrete: The substrate intended for product application must be set, even, dry or matt-damp, unfrozen, seasoned and load-bearing. Any sharp edges should be deburred or chamfered. The substrate should be cleaned mechanically, dust, any loose layers 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. In the case of a very smooth surface, e.g. prefabricated elements, the surface should be grinded in order to remove cement laitance and open up the pores. After grinding, the surface should be dusted off.
PVC: Roughen and degrease elements made of hard PVC, e.g. pipes, window profiles, with an agent approved by the PVC manufacturer. Ensure that any protective tape at the sealing area has been removed.
Wood-based panels: The surface needs to be grinded and any cavities (joints, knot holes) filled.
EPDM membrane: Clean and degrease elements made of EPDM membrane with an agent approved by the EPDM membrane manufacturer.
Connect NexGreen is a ready-to-use product. If stored at low temperatures, the product should be placed in a warm room for a minimum of 24 hours before use.
Avoid rapid and intensive mixing to prevent aeration and moisture from entering the product. Moisture affects the curing process and can cause the product to bind inside the packaging. If a scum appears, remove it from the surface. When mixing, use a slow-speed stirrer or do it manually, paying attention not to aerate the mixture. Make sure that tools and containers are dry before they come into contact with the product.
For partial use, transfer a portion of the material into a clean container. Before using and pouring Connect NexGreen, it is recommended to secure the edge of the packaging with plastic tape. This will enable the packaging to be closed and opened repeatedly and prevent the edges of the bucket from becoming dirty. Before closing the packaging, remove the tape, secure the product surface with film and then close the packaging tightly.
Apply Connect NexGreen evenly to the prepared substrate. NEXLER Connect Tape should then be embedded into the fresh compound by pressing down with a dry tool and then immediately covered with another even layer of product. Then, once the compound has dried, the third layer can be applied. The application area should be defined in such a way that it is at least 4 cm wider on each side than the width of the NEXLER Connect Tape used.
Before use, please read the application details in the product's Technical Data Sheet.

I layer - 600 g/m²
II layer - 800 g/m²
III layer - 700 g/m²

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A roof with a vision – green solutions for investments

Green roofs in modern construction are not a passing trend, but a real market need driven by climate, urbanisation and regulatory challenges. They are a key element of sustainable development strategies, not only distinguishing investments on the market, but also having a real impact on their value and functionality. It is a space where ecology meets long-term safety and technical durability.