Introducing Flex 805: The Ultimate Construction Polyurethane Sealant by ResinTech
Construction joints need more than a material that simply fills a gap. The sealant has to remain flexible, resist wear and weather, and be practical to apply on site.
ResinTech Flex 805 is a moisture-curing, one-component elastic polyurethane sealant developed for those demands. It is supplied ready to use, cures at normal temperatures, and provides a durable seal across a broad range of construction applications.
What makes Flex 805 stand out?
Flex 805 brings several useful properties into one product:
- Neutral, non-corrosive curing: It cures at normal temperatures without causing corrosion or pollution.
- High durability: Strong abrasion resistance and tear strength help it perform in demanding environments.
- Weather and water resistance: The cured sealant maintains its integrity when exposed to harsh weather or water.
- No on-site mixing: The one-component formula is ready to apply, reducing preparation time.
- A paintable surface: Once cured, Flex 805 is compatible with a range of paints, making it easier to coordinate with the finished project.
This balance of elasticity, resistance, and application speed makes Flex 805 useful anywhere a joint must remain sealed while accommodating real-world service conditions.
Where can Flex 805 be used?
Flex 805 is designed for varied construction and maintenance work, including:
- Concrete and epoxy floor joints: A durable seal for construction joints exposed to foot traffic and machinery.
- Roofing and guttering: Helps seal vulnerable joints against leaks and water damage.
- Sanitary facilities: Creates a durable joint seal in areas where cleanability matters.
- Containers, water tanks, and silos: Water and chemical resistance support demanding storage applications.
- Prefabricated construction: Provides a flexible seal between building components and joints.
Always confirm substrate compatibility and the current ResinTech technical requirements for the specific project before application.
Flex 805 technical specifications
| Property | Specification |
|---|---|
| Appearance | Paste |
| Tack-free time | 46 minutes |
| Sagging | 0 mm |
| Shore A hardness (±) | 41 |
| Density (±) | 1.26 g/cm³ |
| 100% stretching strength | ≥0.58 MPa |
| Tensile strength | 2.7 MPa |
| Elongation at break | 805% |
| Application temperature | 5°C to 35°C |
| Service temperature | -40°C to +90°C (minimum 50°C in hot water) |
Safety, storage, and packaging
Keep Flex 805 out of the reach of children. In case of eye contact, rinse with plenty of water and seek medical advice immediately.
Store unopened original containers in a dry place below 25°C. The stated shelf life is nine months in the original sausage or aluminum tube packaging.
Available packaging includes:
- 20 sausages per carton at 600 ml each
- 25 cartridges per carton at 310 ml each
- White, black, grey, and additional color options
A practical sealant for demanding joints
Flex 805 gives construction professionals a ready-to-use sealant that combines flexibility with abrasion, tear, weather, and water resistance. From floor joints and prefabricated components to roofs, gutters, sanitary areas, and tanks, it is built to make durable joint sealing more straightforward.
For current product availability, color options, technical guidance, or ordering support, contact ResinTech or Canopus Supply before beginning the project.