ETFE Repair Tape for Horticultural Building
ETFE tape is extremely resistant to chemicals and adhering well to almost all surfaces, as well as being resistant to infiltration (by rain, dew or condensation). An important conclusion for an efficient and environmentally friendly production of food for a growing world population are for horticulture climatic greenhouses. Because they allow a decoupling of plant growth from the climatic conditions. Efficient and long-lasting film greenhouses are possible with the ETFE films available today. For the construction, maintenance and repair, an ETFE adhesive tape made by CMC Klebetechnik is particularly suitable.
Services Overview
Worldwide, about 90% of all greenhouses are covered with foil or plastic panels. Modern, multi-layered film constructions make it possible to produce elastic, hail-resistant film coverings with very good transparency and suitable properties such as NIR blocking or anti-drop effect. If additional emphasis is placed on a particularly long service life (> 25 years are possible), there is almost only the choice between glass cover and ETFE film (eg F-Clean® from AGC).
The construction requirements as well as the plant-specific needs require special glasses, which also require a more expensive substructure because of their own weight. ETFE films offer many advantages that make it worthwhile to replace glass or high-quality PE composite films:
- Optimum use of solar energy (light transmission 85-93%, also UV content); Due to the high transparency of ETFE in the entire PAR area one achieves particularly 'plant-friendly' conditions.
- Tear-resistant, elastic, extremely hail resistant
- In double or triple layer very good thermal insulation (Thermohaus, <3.5 W / m²)
- Cost savings through more than 30% energy savings with two-layer roofing
- With special equipment IR-locking and shading
- Very light, therefore also suitable for Caprio roofs and other large roof ventilation systems
- Self-cleaning surface allows rain to wash off the dirt, snow and ice slide off easier, less shading
- Reduced maintenance time and cleaning costs
- Can be moved as a foil curtain, so that even a complete opening of the greenhouse is possible (eg hardening house)
- ETFE foils as roofing material are listed in the Building Materials Classification B1 flame retardant
- Also suitable for glass-foil concepts for energy saving (CO2 optimization)
- Extremely resistant to chemicals, no damage due to contact with the sprayer
- No unwanted length growth, freiland-like leaf green
- Reduced costs for pest insect control due to high UV content
- no expensive ESG glazing in the overhead area necessary
- With existing technology for inflated double sheets of PE fast conversion to ETFE possible
- Even for coverings in desert areas, ETFE is ideal for its excellent wear properties.
- Since ETFE has a very good resistance to soiling (anti-adhesive surface), it is difficult to repair with commercially available adhesive tapes. The teflon-like surface prevents good adhesion.
No matter what the foil greenhouse with ETFE roofing in commercial horticulture will later be used, be it for vegetable and ornamental plant cultivation, seed plant production or as a hardening house, it can always come back to unintentional injury to the film skin. Even strong gusts of wind and abrasion on supporting elements can lead to injuries of the film.
ETFE adhesive tapes from CMC Klebetechnik for climatic greenhouses
Therefore, CMC Klebetechnik has been producing adhesive tape for many years that can be used to repair ETFE foil greenhouses in particular. The tape consists of a 100μm thick ETFE film from Nowofol. The extremely chemical- and aging-resistant adhesive adheres to almost all surfaces very well and is resistant to migration (rain, dew, condensation). It is also possible to use the ETFE CMC 77700 / CMC 77701 adhesive tape to cover particularly vulnerable rubbing marks inorder to preserve the longevity of the covering film.
The ETFE adhesive tape can also be used for repairs in membrane constructions (double-layer roofing with compressed-air-stabilized foil construction), because the bond also withstands the shear loads during inflation very well.
High-quality foil greenhouses (also in garden centers, lobbies, atriums) can be maintained almost invisibly with this adhesive tape by CMC Klebetechnik for many years, which is absolutely sensible given the costs for the ETFE foil.
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