Rigid PVC as the finishing outer jacket
PVC film is the thin, hard plastic jacket used as the outer layer on by far the majority of pipe and duct insulation in Danish technical installations — from the heating plant in the basement to the ventilation runs in the hospital. It is cheap, fast to install, and comes in colours that match the entire pipe penetration.
Key figures
Thickness (film for straight pipes)
** 0.30 mm / 0.35 mm / 0.40 mm / 0.50 mm (standard); typically only 0.30 mm in the very cheap discount trade [195_danmat_katalog s.1; Armadan produktliste; Bilcare TA S17 datablad]
Thickness (fittings — bends, T-pieces, end caps)
** min. 0.15 mm; min. 0.20 mm for valve jackets [PVC NORM EN 15701_2017 02.pdf s.7, Tabel 2]
Maximum plastic-content requirement
** at least 80 wt-% plastic film in the jacket [PVC NORM EN 15701_2017 02.pdf s.5, pkt. 4.1]
VC residual monomer (health)
** ≤ 0.0001 wt-% (1 ppm) [PVC NORM EN 15701_2017 02.pdf s.5, pkt. 4.2]
Impact strength (tensile-impact)
** ≥ 300 kJ/m² (standard); Bilcare TA 706 delivers > 550 kJ/m², TA S17 delivers > 600 kJ/m² [PVC NORM EN 15701_2017 02.pdf s.6, pkt. 4.3.2.2; PVC-GEN706 datablad; TAS17 datablad]
Density
** 1.39 – 1.44 g/cm³ [Bilcare TA S17 datablad; Miljødeklaration-ISOTOP-2013 s.1]
Vicat softening point
** 76 ± 3 °C (TA S17) / 81 ± 2 °C (TA 706) [TAS17; PVC-GEN706 datablade]
Recommended operating temperature
** –20 °C to +60 °C (the film itself); often stated up to +65 °C indoors [Isogenopak 350 SE tekniske data via isotec-isolierungen.de; Hedestoker.dk Isoleringsfolie]
Reaction-to-fire class (Isotop PVC film, linear pipe insulation)
** C<sub>L</sub>-s2,d0 per EN 13501-1 (DBI classification report PCA10115, 2014-02-05) [2014 SBI full Classifikation Report Foil.pdf s.4]
Reaction-to-fire class (Isogenopak 350 SE)
** DIN 4102 class B1 (not readily flammable) [baufachinformation.de; isotec-isolierungen.de]
Standard/CE basis
** EN 15701:2016 (DIN EN 15701:2017-02) — the harmonised European standard for thermoplastic jackets [PVC NORM EN 15701_2017 02.pdf s.1, 3]
sd value (water vapour)
** µ ≈ 60,000 (Isogenopak 350 SE) — in practice vapour-tight [isotec-isolierungen.de]
Emissivity (ε)
** 0.84 – 0.94 (typical value for plastic; used in heat-loss calculations per EN 15701 Table 3) [PVC NORM EN 15701_2017 02.pdf s.7, Tabel 3; alberto-k.dk]
λ value (thermal conductivity)
** approx. 0.16 W/m·K (Isogenopak 350 SE) — the film provides virtually no insulation; it is a jacket, not an insulation layer [isotec-isolierungen.de]
Service life (fittings, estimated)
** 40 – 80 years with indoor installation [Miljødeklaration-ISOTOP-2013.pdf s.1]
Overlap at joints
** at least 10 mm required in the design, typically 30 – 50 mm used in practice [PVC NORM EN 15701_2017 02.pdf s.7, pkt. 4.3.4.2; danmat.dk/montage-af-produkter]
Standard colours (Danmat/Armadan)
** grey (RAL 7035-like, 9137), white (RAL 9002, ISOTOP 1497/1498), black [195_danmat_katalog s.3; Bilcare datablade; danmat.dk/produkter/pvc-folie]
Roll widths
** 700, 1,000, 1,200, 1,400 mm [danmat.dk/produkter/pvc-folie-hvid]
Roll lengths
** 12.5 / 25 / 35 / 50 m [danmat.dk; hedestoker.dk]
UV resistance
** None — PVC film is not approved for outdoor use without additional protection [isotec-isolierungen.de Isogenopak]
Typical brands
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