POLYURETHANE FOAM INSULATION FOR SOUNDPROOF SEALING AND AIRTIGHTNESS HERMETIC FOAM
Low-expansion polyurethane foam for sealing windows, doors and linear joints
HERMETIC FOAM is a one-component polyurethane foam insulation product for soundproof and airtight sealing on timber, concrete and metal. The low-expansion polyurethane foam is ideal for sealing window and door perimeters, as well as linear joints, ensuring precise and controlled application. Waterproof and airtight even after trimming, it can be applied from +5 °C. Trimming time 20–40 minutes, full hardening in 60 minutes.
Technical specifications for HERMETIC FOAM elastic polyurethane foam
HERMETIC FOAM is an elastic polyurethane foam with closed-cell structure, featuring elongation at break > 40% (EN ISO 1798) and tensile strength 0.07 MPa. It remains permanently flexible, accommodating wood movement and differential movement between building materials. Yield: 40 dm³ per 750 mL cartridge.
Key technical specifications:
— Joint soundproofing: ≥63 dB at 10 and 20 mm (EN ISO 10140-1 / EN ISO 717-1, IFT Rosenheim)
— Air permeability: ≤0.1 m³/(m·h·daPa²/³) at 20 mm (EN 12114)
— Thermal conductivity: 0.030–0.035 W/(m·K) (EN 12667 / FEICA TM1020)
— Water vapour resistance factor: μ = 20 (EN 12086)
— Reaction to fire: class B3 (DIN 4102-1) · class F (EN 13501-1)
— Service temperature after hardening: -40/+90 °C
— EMICODE EC1 Plus · French VOC classification A+ (ISO 16000)
Polyurethane foam insulation for sealing windows and doors: how is it applied?
HERMETIC FOAM is applied with a foam gun to dry substrates. The elastic polyurethane foam does not stain substrates and nor does it flake during installation or over time. It adheres to timber, concrete, metal and other construction substrates. Any excess cured material can be trimmed with a utility knife without compromising airtightness or watertightness.
Low-expansion polyurethane foam for certified soundproofing: how does it perform?
HERMETIC FOAM provides intermediate-level window protection – thermal and acoustic insulation – between windtightness and airtightness. Its soundproofing performance of ≥ 63 dB has been certified by IFT Rosenheim in accordance with EN ISO 10140-1 and EN ISO 717-1, at both 10 mm and 20 mm applied thickness.
Elastic polyurethane foam for linear joints and window perimeter sealing: why choose it?
HERMETIC FOAM's elastic structure — with elongation at break > 40% and permanent elasticity after hardening — accommodates differential movement between the frame and masonry or timber over time. Its low VOC content, certified EMICODE EC1 Plus, also makes it suitable for unrestricted use in indoor applications.
Documents
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Technical data sheets
- Technical data sheets Croatian
- Technical data sheets Czech
- Technical data sheets English
- Technical data sheets French
- Technical data sheets German
- Technical data sheets Greek
- Technical data sheets Hungarian
- Technical data sheets Italian
- Technical data sheets Polish
- Technical data sheets Portuguese
- Technical data sheets Romanian
- Technical data sheets Russian
- Technical data sheets Slovenian
- Technical data sheets Spanish
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IFT Test reports
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EMICODE Certificate
HERMETIC FOAM
| CODE | content
[ml]
|
yield
[l]
|
content
[US fl oz]
|
yield
[US gal]
|
description | version | pcs. |
|---|---|---|---|---|---|---|---|
| HERFOAM | 750 | 40 | 25.36 | 10.57 | ALUMINIUM CARTRIDGE | GUN | 12 |
| HERFOAMB2 | 750 | 35 | 25.36 | 9.25 | ALUMINIUM CARTRIDGE | GUN | 12 |
Technical Data HERMETIC FOAM
| Property | Standard | Tested Values | USC Conversion |
|---|---|---|---|
| Yield | - | 40 dm3 | 0 ft3 |
| Tensile strength | FEICA OCF TM 1018 | 0,07 MPa | 10.15266 psi |
| Film formation time 23°C/50 %RH (1 ) | - | 6 / 10 minutes | - |
| Cutting time 23 °C / 50% RH (1 ) | - | 20 / 40 minutes | - |
| Time required for complete hardening 23 °C / 50% RH (1 ) | - | 60 minutes | - |
| Temperature resistance after hardening | - | -40 / 90 °C | -40 / 194 °F |
| Application temperature (ambient, cartridge and support) | - | 5 / 35 °C | 41 / 95 °F |
| Thermal conductivity (λ) | EN 12667 | 0,03 W/(m·K) | 0.02 BTU/(h·ft·°F) |
| Thermal conductivity (λ) | FEICA TM1020 | 0,035 W/(m·K) | 0.02 BTU/(h·ft²·°F) |
| Acoustic insulation of joints RS,w 10 mm | EN ISO 10140-1 EN ISO 10140-2 EN ISO 717-1 | 63 dB | - |
| Acoustic insulation of joints RS,w 20 mm | EN ISO 10140-1 EN ISO 10140-2 EN ISO 717-1 | ≥ 63 dB | - |
| Resistance to penetration of air | EN 12114 | ≤ 0,1 m³/(m²·h·50Pa) | ≤ 0.005 cfm/ft² at 50Pa |
| Water vapour resistance factor (μ) | EN 1931 / EN ISO 12572 | 20 | - |
| Reaction to fire | DIN 4102-1 | class B3 | - |
| Reaction to fire | EN 13501-1 | class F | - |
| Emicode | procedura di prova GEV | EC1 plus | - |
| French VOC classification | ISO 16000 | A+ | - |
| Storage temperature | - | 15 / 25 °C | 59 / 77 °F |
| Transport temperature | - | 0 / 35 °C | 32 / 95 °F |
| Elongation MD/CD | - | > 40 / % | - |
