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Acessórios de instalação de sala limpa
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
Introdução do produto
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-chave
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.
Preocupações do produto do 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.
Aplicações típicas
Door and window frame backfillingConcealed cleanroom panel perimeter gapsService sleeve annular voidsCeiling and partition installation cavitiesInsulating gaps behind hygienic trims
Parâmetros técnicos
Typical construction and application ranges for a one-component aerosol polyurethane foam sealant are shown below.
| Material principal | One-component moisture-curing polyurethane prepolymer and propellant |
|---|---|
| Painel de espessura | 10-80 mm practical filled cavity depth per controlled application |
| Largura efetiva | 10-50 mm recommended concealed gap width |
| Comprimento máximo | Up to 30000 mm indicative bead length per 750 mL can, depending on bead size |
| Aço enfrentando espessura | 0.40-1.20 mm compatible cleanroom panel or frame facing |
| Densidade Core | Approximately 15-30 kg/m³ free-rise cured foam density |
| Condutividade térmica | Approximately 0.033-0.040 W/(m·K) for cured foam |
| Superfície acabado | Trimmed cellular foam concealed beneath a cleanable sealant or cover trim |
| Tipo conjunto | Concealed frame, perimeter or penetration cavity fill |
| Customização | Disponível com base na aplicação pretendida e no ambiente operacional. |
Opções disponíveis
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?
Envie-nos as suas dimensões, condições de instalação, metas de desempenho e acabamento de superfície necessário.
