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| Base Technology | Polyurethane |
|---|---|
| Tack Free Time | 5~10 mins |
| Curing Time | 30~60 mins |
| Yield (Output Vol.) | 38~40 L |
| Shrinkage | No |
| Flammability Class (DIN 4102) | B3 |
| Application Temperature Range | +5°C ~ +35°C |
| Temperature Resistance Once Cured | -30°C ~ +80°C |
| Shelf Life | 12 months |
LOTFIX F21 is a general purpose PU foam designed for routine construction, installation, and maintenance work. After application, it expands to fill joints, cavities, and irregular gaps, then cures with moisture in the air to form a firm and durable structure.
It is a practical choice for buyers who need a versatile polyurethane foam rather than a highly specialized product. For standard sealing applications, it provides dependable filling performance, useful thermal and sound insulation support, and broad usability across common building areas.
Compared with products made for more specific conditions such as low-expansion window installation, winter application, or fire-rated sealing, F21 is positioned as a balanced solution for everyday market demand. It is suitable for importers, wholesalers, contractors, and household users looking for a reliable standard-grade PU foam.
A practical foam for common sealing and filling tasks where consistency matters more than niche features.
Suitable for doors, windows, construction gaps, openings, and general repair work.
A straightforward option for customers seeking a general purpose polyurethane foam for routine use.
• One-component, ready-to-use formula for convenient application in everyday construction and maintenance work.
• Good expansion and filling capability for joints, openings, and irregular gaps in standard installations.
• Supports basic thermal and sound insulation in sealed areas where improved enclosure performance is needed.
• Good adhesion to common building materials used in regular construction and installation work.
• Suitable for both project use and household DIY, making it a flexible option for broad market demand.
Filling installation gaps around frames to help improve sealing, insulation, and a more complete finish.
Suitable for sealing joints, holes, and construction voids in routine project work.
Helps reduce unwanted air leakage while supporting sound and heat insulation in enclosed areas.
A useful choice for minor maintenance, renovation, and common household sealing applications.
LOTFIX F21 supports flexible packaging options for different markets and application needs.
• Can size: 750ml/can, 500ml/can, and 300ml/can
• Suitable for both gun type and manual type
• Gross weight: 350g to 1000g upon request
• Carton packing options: 15 cans/carton, 12 cans/carton (regular), and 6 cans/carton
• Contact us for other carton packaging requirements
If your application is a standard sealing or filling job and does not require special properties such as controlled low expansion, fire resistance, or low-temperature application, a general purpose PU foam is often the most practical and efficient choice.
LOTFIX F21 helps simplify product selection for customers who need a dependable polyurethane foam for everyday use. It covers the most common project scenarios without overcomplicating purchasing decisions.
For importers and wholesalers, it can also serve as a strong standard-grade option in a broader PU foam product line, especially when serving customers who need a versatile, easy-to-position product for routine construction demand.
