DEVCON FLEXANE 94
Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide
Main features
- 6,000 cP Castable Urethane
- Replacement-Part and Flexible-Mold Fabrication
- 19.3 MPa Cured Tensile Strength
Product Description
Devcon® Flexane® 94 Liquid is a low-viscosity, castable, non-shrinking urethane compound that cures at room temperature to a rigid rubber material. The black, two-component system has a mixed viscosity of 6,000 cP, a 10-minute pot life at 24°C, and a 5-hour demolding time. It is designed to reproduce low- to medium-volume or discontinued rubber parts, form flexible molds and non-scratching fixtures or linings, and encapsulate wire and electronics exposed to impact, vibration, expansion, and contraction. Typical cured properties include 97 Shore A hardness, 500% elongation, 19.3 MPa tensile strength, and 14 kV/mm dielectric strength.
Key features
- Castable low-viscosity urethane: Mixed viscosity of 6,000 cP supports controlled pouring and mold filling.
- Room-temperature cure: No applied heat is required for the documented cure process.
- Five-hour demolding: Supports removal from the mold after the documented demolding interval.
- Rigid rubber final state: Cures to a black material with typical hardness of 97 Shore A.
- High elongation and tear resistance: Typical cured values include 500% elongation and 73 N/mm tear resistance.
- Molding, fixturing, lining, and encapsulation: Supports flexible molds, replacement rubber parts, non-scratching fixtures or linings, and wire or electronics encapsulation.
Applications / Suitable for
- Reproduction of low- to medium-volume or discontinued rubber parts
- Flexible molds and forming dies
- Non-scratching holding fixtures and protective linings
- Encapsulation of wire and electronics exposed to impact, vibration, expansion, or contraction
TDS, SDS & Technical Documents
Technical Specifications
No specifications available.
Additional Information
Devcon® Flexane® 94 Liquid
Devcon Flexane 94 Liquid is a castable, non-shrinking urethane that cures at room temperature to a rigid rubber material. Its low mixed viscosity supports pouring into molds, fixtures, linings, and encapsulation cavities, while the cured material combines 97 Shore A hardness with high elongation and tear resistance.
As-Supplied Properties
Typical uncured and mixed product data at 72-75°F (23-24°C), unless otherwise stated. Values are representative and are not specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Color | Black | — | Mixed material |
| Mix ratio by weight | 69 : 31 | — | Resin : curing agent |
| Mixed viscosity | 6,000 | cP | 72°F (23°C) |
| Pot life | 10 | min | 75°F (24°C) |
| Specific volume | 26.5 (0.957) | in³/lb (cm³/g) | Mixed material |
| Coverage at 1/4 in (6.35 mm) | 106 (1,508) | in²/lb (cm²/kg) | Theoretical coverage |
Surface Preparation, Mixing, and Application
Prepare and prime the substrate for the required adhesion level, condition the Flexane components to 65-85°F (18-29°C), mix until the material is uniform and streak-free, then pour from one side of the mold or cavity to help displace air.
Application Sequence
Primer and Surface Guidance
| Substrate | Primer | Preparation guidance |
|---|---|---|
| Metal | FL-10 Primer | Clean and roughen. For maximum tear resistance, moisture exposure, or water immersion, use FL-10 and FL-20. |
| Rubber | FL-20 Primer | Clean and roughen until the surface appears new or deeper in color. Use FL-10 on hard-to-bond rubber; porous rubber may require multiple coats. |
| Wood | FL-20 Primer | Confirm the substrate is clean, dry, and structurally sound before priming. |
| Fiberglass | FL-20 Primer | Remove contamination and prepare the surface before applying the primer. |
| Concrete | FL-20 Primer | Use on clean, dry, sound concrete and validate adhesion under the intended conditions. |
| Rigid plastics | FL-20 Primer - two coats | Confirm plastic compatibility and validate the complete preparation and cure process. |
Store Devcon Flexane 94 Liquid in a cool, dry place. The technical data sheet lists 1 lb kit and 10 lb order configurations, while the current manufacturer product page also identifies NSN 8030-01-036-9228. Use only for industrial applications and consult the current SDS for complete handling, exposure-control, first-aid, storage, and disposal requirements.
Cured Properties
Typical cured data after seven days at 75°F (24°C), unless otherwise stated. Values are representative and should not be used as design allowables.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Hardness | 97 | Shore A | ASTM D2240 |
| Tensile strength | 2,800 (19.3) | psi (MPa) | ASTM D412 |
| Maximum elongation | 500 | % | ASTM D412 |
| Tear resistance | 415 (73) | pli (N/mm) | ASTM D624 |
| Dielectric strength | 350 (14) | V/mil (kV/mm) | ASTM D149 |
| Cured shrinkage | 0.0014 | in/in (cm/cm) | ASTM D2566 |
| Maximum operating temperature - dry | 180 (82) | °F (°C) | Documented limit |
| Maximum operating temperature - wet | 120 (49) | °F (°C) | Documented limit |
| Solids by volume | 100 | % | Cured material |
Chemical Resistance
| Chemical | Rating | Test context |
|---|---|---|
| 1,1,1-Trichloroethane | Poor | Seven-day room-temperature cure; 30-day immersion at 75°F (24°C) |
| Aluminum sulfate, 10% | Very good | Seven-day room-temperature cure; 30-day immersion at 75°F (24°C) |
| Cutting oil | Fair | Seven-day room-temperature cure; 30-day immersion at 75°F (24°C) |
| Gasoline, unleaded | Poor | Seven-day room-temperature cure; 30-day immersion at 75°F (24°C) |
| Hydrochloric acid, 10% | Very good | Seven-day room-temperature cure; 30-day immersion at 75°F (24°C) |
| Hydrochloric acid, 36% | Very good | Seven-day room-temperature cure; 30-day immersion at 75°F (24°C) |
| Isopropanol | Poor | Seven-day room-temperature cure; 30-day immersion at 75°F (24°C) |
| Methyl ethyl ketone | Poor | Seven-day room-temperature cure; 30-day immersion at 75°F (24°C) |
| Phosphoric acid, 10% | Very good | Seven-day room-temperature cure; 30-day immersion at 75°F (24°C) |
| Potassium hydroxide, 40% | Very good | Seven-day room-temperature cure; 30-day immersion at 75°F (24°C) |
| Sodium hydroxide, 50% | Very good | Seven-day room-temperature cure; 30-day immersion at 75°F (24°C) |
| Sodium hypochlorite | Very good | Seven-day room-temperature cure; 30-day immersion at 75°F (24°C) |
| Xylene | Poor | Seven-day room-temperature cure; 30-day immersion at 75°F (24°C) |
Applications
Devcon Flexane 94 Liquid supports castable urethane applications where the selected substrate, primer, mold design, processing method, cure schedule, hardness, and service environment are suitable for the finished part or encapsulated assembly.
Technical Support
Work with Krayden to evaluate Devcon Flexane 94 Liquid against your mold or part geometry, substrate, primer selection, mixing equipment, pour depth, air-release method, cure schedule, hardness, chemical exposure, and service temperature. Our team can help review packaging, process trials, compatibility, and implementation requirements.
