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Poliuretano Foam Sealant
A controlled-expansion polyurethane foam for insulating and filling concealed gaps around cleanroom frames, panels and service openings.
- Controlled Gap Expansion
- Thermal and Acoustic Fill
- Strong Substrate Adhesion
- Trim-and-Finish Surface
Introducción del producto
Polyurethane foam sealant is dispensed from a pressurized aerosol can as a moisture-reactive cellular material. It expands within irregular concealed voids, adheres to many common construction substrates and cures into a lightweight insulating fill that can be trimmed after hardening. In cleanroom work it is normally kept behind the exposed hygienic finish, with the accessible joint subsequently closed using a smooth compatible sealant or trim profile.
Características clave
The cured closed- and open-cell structure reduces uncontrolled air movement through concealed gaps.
Adhesion to compatible concrete, masonry, timber, metal and rigid insulation stabilizes the filled cavity.
Hardened excess can be cut back to receive a cleanable cover trim or surface seal.
Preocupaciones del producto del cliente
Irregular installation cavities need a continuous insulating fill without allowing expanding foam to become the exposed cleanroom surface.
Rigid packing leaves small inaccessible voids behind frames.Fresh foam expands into uneven spaces and bonds to prepared cavity surfaces.
Excessive expansion can bow lightweight panels or distort frames.A low- or controlled-expansion grade is applied in measured lifts with room left for curing growth.
Exposed cellular foam is difficult to clean and can degrade under light.The cured fill is trimmed below the face and protected by a smooth compatible sealant or cover profile.
Dry or dusty substrates produce weak and uneven cure.Surfaces are cleaned and lightly conditioned with moisture where the selected product instructions permit.
Aplicaciones típicas
Door and window frame backfillingConcealed cleanroom panel perimeter gapsService sleeve annular voidsCeiling and partition installation cavitiesInsulating gaps behind hygienic trims
Parámetros técnicos
Typical construction and application ranges for a one-component aerosol polyurethane foam sealant are shown below.
| Materiales Core | One-component moisture-curing polyurethane prepolymer and propellant |
|---|---|
| Panel de espesor | 10-80 mm practical filled cavity depth per controlled application |
| Ancho efectivo | 10-50 mm recommended concealed gap width |
| Longitud máxima | Up to 30000 mm indicative bead length per 750 mL can, depending on bead size |
| Acero frente a espesor | 0.40-1.20 mm compatible cleanroom panel or frame facing |
| Densidad Core | Approximately 15-30 kg/m³ free-rise cured foam density |
| Conductividad térmica | Approximately 0.033-0.040 W/(m·K) for cured foam |
| Superficie acabada | Trimmed cellular foam concealed beneath a cleanable sealant or cover trim |
| Tipo conjunto | Concealed frame, perimeter or penetration cavity fill |
| Customization | Disponible según la aplicación prevista y el entorno operativo. |
Opciones disponibles
Straw-applied or gun-grade canLow-expansion frame gradeSummer or winter application gradeStandard yellow or off-white cured foam
Planning a Polyurethane Foam Sealant specification?
Envíenos sus dimensiones, condiciones de instalación, objetivos de rendimiento y acabado superficial requerido.
