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West System 205-B Fast Hardener - 1 Quart
MFR Model# 318378
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Overview
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WEST SYSTEM brand resins and hardeners, form a two-part epoxy system developed by Gougeon Brothers specifically for wood and composite construction. WEST SYSTEM epoxy is recommended by Rutan Aircraft Factory for certain homebuilt aircraft applications, particularly where a moisture resistant epoxy is desired. 105 Resin is the base material on which all of the WEST SYSTEM epoxy systems are built. The resin is a clear, light amber, low-viscosity liquid. It is designed specifically to wet out wood fiber. With roller applications, it possesses excellent thin film characteristics in flowing out and is self-leveling without fish-eyeing. Its relatively high flash point makes it safer to work with than polyesters. It can be cured in a wide temperature range, then sanded and shaped. It cures quite clear so that the natural finish shines through.
205 Fast Hardener, when mixed with the 105 Resin in a ratio of 5 parts Resin to 1 part Hardener, yields a high-strength, rigid solid with excellent cohesive properties and provides an excellent moisture vapor barrier. The 105 Resin/205 Fast Hardener has a pot life of 10-15 minutes at 70°F. It is also recommended in coating applications where natural finishing is desired. Partial cure time at 70°F is 5-7 hours. 206 Slow Hardener is a low-viscosity mixture of polyamines. The 105 Resin/206 Slow Hardener has a pot life of 30-40 minutes at 70°F. It is normally used when extended time is needed for large coating and bonding applications. It is especially well suited to working in warmer climates. Partial cure time is 9 hours at 70°F. Order by size and hardener. Pump sold separately. |
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WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. |
Features
Choose the right hardener to control the cure time of 105. Epoxy Resin at the temperature at which you will work.Specifications
| Best Use | Fast Hardener for 105 Epoxy Resin |
|---|---|
| Capacity | 0.86 Quart |
| Cure Time | 6 to 8 Hours (Working Time 60-70 Minutes) at 72 F |
| Type | Hardener |
Selection Guide
Documents
- West System User Manual
- 105-205 TDS (PDF)
- 105 SDS (PDF)
Videos
Reviews
Fast shipment
Verified Purchase
West System Epoxy 205 Fast Hardener Quart
Work like its supposed to thought it would work faster but it still takes a day before you can really sand or work it
Verified Purchase
West System Epoxy 205 Fast Hardener Quart
Q&A
Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
