Applications

Everwide FX 191BL3 – One Component Moisture Curing Silicone adhesive/sealant

Product code: Everwide FX 191BL3

Manufacturer: Everwide

Package size: 300 ML, 1KG, 5 KG

Shelf Life: 12 months

FX191BL3 is a one-component moisture-curing silicone adhesive/sealant that cures upon exposure to air without requiring additional processing. It is specifically designed for bonding plastics, metals, and glass, making it suitable for various industrial and manufacturing applications. The curing mechanism releases alcohol gas, eliminating the strong odors associated with polyurethane (PU) and deoximation-based sealants.

This product offers several advantages, including a convenient manufacturing process, excellent thixotropy (preventing sagging), and strong adhesion to different materials without requiring a primer. It is designed for Formed-in-Place Gasket (FIPG) applications and provides resistance to long-term compression, temperature variations, humidity, and yellowing.

Additionally, FX191BL3 complies with the 2011/65/EU RoHS regulations, ensuring it meets environmental and safety standards. Once cured, it forms a soft yet tough material that maintains its integrity under various conditions.

Uncured Properties

Property Value
Composition Polysiloxane resin
Appearance Liquid
Color Black
Viscosity (25°C, S14 3rpm, cps) 300,000 ~ 600,000
Thixotropic Index >4
Dispensing Rate (ASTM D2452, g/min) 650
Specific Gravity @ 25°C 1.5
pH Value 6 ~ 8
Solvent Content (%) 0

Curing Properties

Property Value
Surface Dry Time (25°C / 50%RH, min) 15
Through Cure Time (25°C, days) 7

Cured Properties

Property Value
Hardness (Shore A, ASTM D2240) 30
Hardness (Shore 00, ASTM D2240) 80
Glass Transition Temperature (°C) <-40
Coefficient of Thermal Expansion (CTE, ppm) 114
Water Absorption Ratio (25°C / 24hr, %) 0.24
Tensile Strength (ASTM D412, MPa) 2.2
Elongation at Break (ASTM D412, %) 608
Peel Strength (ASTM D412-die B, kN/m) 12
Volume Shrinkage (%) 0.13

Shear Strength (kgf/cm²)

Material Pair Strength
PC vs. PC 12
ABS vs. ABS 10
PMMA vs. PMMA 8
PET vs. PET 12
PVC vs. PVC 16
Copper vs. Copper 14
SUS vs. SUS 14
Glass vs. Glass 21
Aluminum vs. Aluminum 13
Nylon vs. Nylon 12

Thermal Properties

Property Value
Thermal Conductivity (W/mK) 0.25
Temperature Range (°C) -40 ~ 200

Heat Intensity (Shear Strength, kgf/cm²)

Test Temperature (°C) Shear Strength (kgf/cm²)
25 13
50 13
80 13
100 12
150 10
200 10

Heat Aging (Aluminum vs. Aluminum)

Test Time (hr) at 200°C Shear Strength (kgf/cm²)
0 13
100 22
300 23
500 24

Storage and Shelf Life

Property Value
Storage Conditions Cool, dark place, avoiding moisture exposure
Recommended Storage Temperature 14 ~ 34°C
Shelf Life (Unopened Container) 6 months

Everwide FX244-1: High Performance for Precision Molding

FX244-1 A specialized two-part silicone rubber designed for creating high-precision molds. This material features a unique oil-bleeding property that creates a self-releasing surface, eliminating the need for external non-stick sprays during demolding.

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