PUT5701 – Two-part Polyurethane Sealant for Enclosure
PUT5701 is a type of FIPFG (Formed In Place Foam Gaskets) that addresses the need for effective sealing and precise fitting of components. It is composed of two components: an A-component (polyol) with different molecular chain lengths for creating soft and hard foams, and a B-component (MDI) acting as a hardener. When these components are mixed and cured, they form a soft foam seal that solidifies at room temperature, eliminating the need for a tempering furnace.
Features and benefits
- Fully automatic, process-safe, flexible
- Fast, economical, and efficient
- Low personnel expenses due to a high degree of automation
- Short production cycles and high production speeds
- Reproducible quality of seamless, contour-accurate foam seals
- Fast invisible self-leveling coupling point
- Free application process – no forming tools required as with 2K injection molding
- A cost-effective alternative, especially for complex component geometries.
Certifications

Specifications
TYPICAL UNCURED PROPERTIES
| Properties | PUT5701-A | PUT5701-B |
| Appearance | Paste | Paste |
| Color | Black | Brown |
| Viscosity *23°C, mPa*s |
2000 – 5,000 | 110 – 250 |
| Density without air loading [at 23°C] |
1.16 | 0.98 |
TYPICAL CURING PROPERTIES
| Properties | |
| Mix Ratio (A:B) by Weight | 5:1 |
| Tack-free time, min | 4 – 6 |
| Full cure time, h | 24 |
TYPICAL CURED PROPERTIES
| Hardness (Depends on the Temperature and humidity) (Shore A) | 40 – 65 |
| Tensile strength (Mp) | 0.3 |
| Elongation at break (%) | 105 |
| Compress recuperation (long-term) °C | ~ -40 – +90 |
| Temperature resistance (short-term) °C | ~ -60 – +190 |
| Color of reacted product (RAL) | Black |
| Water absorption (weight-%) | < 10 |
| NCO content | 25.3%-26.5% |
Technical Documents
Technical Data Sheet
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