Item Name: FH3503
Manufacturer: H.B. Fuller
Technologies: Polyurethane
Color: Part A – Colorless, Part B – Amber
Cure Type: Room temperature
Package Size: Contact to Techniq VN for details.
Shelf Life: 12 months
FH3503 is a two-component, liquid, castable polyurethane elastomer that cures at room temperature to a high-modulus, high-hardness, brown semi-transparent elastomer. It contains no MDA, TDI, or MOCA and has low mixed viscosity. FH3503 exhibits high abrasion resistance, is insensitive to environmental moisture, and offers a longer pot life.
Key Features & Benefits:
No MDA, TDI, or MOCA
High abrasion resistance
Insensitive to typical environmental moisture
Low viscosity and longer pot life
High modulus and high hardness elastomer
Suitable for casting applications requiring durability
Type of Product: Polyurethane Elastomer
Technology / Base: Polyurethane
Components: Two-component
Curing: Room temperature
Appearance/Color: Brown, semi-transparent
Consistency: Liquid
Shelf Life: 365 days unopened
Urethane casting elastomer applications
Potting and structural components
Situations requiring high hardness and abrasion resistance
| Property | Value | Test Method / Condition |
|---|---|---|
| Viscosity (Part A) | 5,500 cP | TMTS001 |
| Viscosity (Part B) | 190 cP | TMTS001 |
| Specific Gravity | 1.07 (A), 1.05 (B) | D792/D1475 |
| Color | Colorless (A), Amber (B) | – |
| Functionality Measure, Isocyanate | 6.3–6.5% | TMTS049 |
| Property | Value | Test Method / Condition |
|---|---|---|
| Viscosity (Mixed) | 4,200–4,500 cP | TMWB070 |
| Gel Time | 25–35 min (ball gel), 30–40 min (ASTM gel) | ASTM Gel for Urethane |
| Demolding Time | 16–24 hrs at 77°F / 2–4 hrs at 150°F | – |
| Complete Cure | 7 days at 77°F | – |
Cured Mechanical Properties
| Property | Value | Test Method |
|---|---|---|
| Hardness | 95 Shore A | – |
| Tear Resistance | 150 lbf/in (ASTM D-1938), 90 lbf/in (ASTM D-470), 270 lbf/in (ASTM D-624, Die C) | – |
| Tensile Elongation | 500% | ASTM D412-83 |
| Tensile Strength | 4,100 lb-f/in² | ASTM D412-83 |
| Modulus at 100% Elongation | 1,200 lb-f/in² | ASTM D412-83 |
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