3M 550FC
Harmonization Code : 3919.10.80 | Other self-adhesive plastic rolls not exceeding 20 cm wide.
Main features
- One-Component Fast Moisture Cure
- High Tensile Strength and Modulus
- Water and Salt-Spray Resistance
Product Description
3M™ Polyurethane Adhesive Sealant Fast Cure 550 is a fast-curing, one-component, moisture-curing polyurethane sealant that forms permanently elastic bonds. It is designed to bond a wide variety of dissimilar materials including plastics, metals, fiberglass, and wood, offering high tensile strength suitable for fastener replacement. This versatile adhesive sealant features a high modulus and Shore A hardness for robust bonding, and it is paintable after curing to improve the final product finish.
Key features
- Fast-curing, one-component formula: Moisture-curing system requires no mixing, simplifying production and assembly processes.
- Permanently elastic and strong: Features high tensile strength for potential fastener replacement and a high modulus for stronger, durable bonds.
- Excellent substrate versatility: Readily bonds dissimilar materials like plastics, metals, fiberglass, and wood to provide design flexibility.
Applications / Suitable for
- General industrial, construction, marine, and specialty vehicle bonding
- Marine deck to hull bonding
- Sealing and bonding diverse, dissimilar materials
Technical Specifications
General Properties
Specific Gravity
1.17
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume.
For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
Mechanical Properties
Elongation
>600 %
Elongation is the process of lengthening something.
It is a percentage that measures the initial, unstressed, length compared to the length of the material right before it breaks.
It is commonly referred to as Ultimate Elongation or Tensile Elongation at break.
Thermal Properties
Temperature Resistance
90 ˚C
Temperature resistance is the maximum temperature that the material or product can withstand for a period of time.
The temperatures listed should be considered as guidelines for an operating temperature of about 30 minutes. Typically, the material can withstand much longer times at temperatures about 20°C lower and can withstand much higher temperatures for short, intermittent times.
Other Properties
VOC-Free (100% solids content)
29 g/L
VOC means Volatile Organic compound. VOCs are evaporating molecules and are literally everywhere around us. Our scents are volatile organic compounds, most of the things that we smell are VOC etc. So what do we mean when we state that a product is VOC free?
A VOC free product, according to the FTC is one where:
1)VOCs have not been intentionally added to the product.
2)The presence of VOCs at that level does not cause material harm that consumers typically associate with VOCs, including but not limited to, harm to the environment or human health.
3)The presence of VOCs at that level does not result in concentrations higher than would be found at background levels in the ambient air.
Physical Properties
Tack-Free Time
50-90 minutes
Additional Information
Technical properties
As-supplied / before-processing properties
Typical properties; these values are not intended for use in preparing specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Consistency | Medium Paste | - | - |
| Specific Gravity | 1.17 | - | - |
| VOC | 29 | g/L | (0.242 lb/gal) |
| Approximate Coverage | 38 | lineal m | 10.5 oz. cartridge, 1/8 in (3 mm) bead (126 LF) |
| Application Temperature | 5-35 | °C | (40-95°F) |
| Tack Free Time | 50-90 | minutes | at 23°C (73°F) |
| Rate of Cure | 4 | mm/24 h | at 23°C (73°F) (3-16 in/24 h) |
Technical properties
After-processing / final-state properties
Typical properties; these values are not intended for use in preparing specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Shore A Hardness | 45 | - | ASTM C661 |
| Modulus at 100% Elongation | 1 | MPa | ASTM D412 at 23°C (73°F) (150 lb/in²) |
| Tensile Strength | 3.1 | MPa | ASTM D412 (450 lb/in²) |
| Elongation at Break | > 600 | % | ASTM D412 |
| Long Term Temperature Resistance | 90 | °C | (194°F) |
| Minimum Long Term Temperature Resistance | -40 | °C | (-40°F) |
