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West System Epoxy Kits

From $69.95 to $629.00
Kit
No.
Kit Size PN #105
Resin
#205-Fast #206-Slow Kit Price Buy
A-11.2 Qt.
01-08100
32 oz.7 oz.-----$71.85
Quantity
A-21.2 Qt.
01-08200
32 oz.-----7 oz.$69.95
Quantity
B-11.2 gal
01-08300
126 oz.27 oz.-----$168.95
Quantity
B-21.2 gal
01-08400
126 oz.-----27 oz.$168.95
Quantity
C-15.25 gal
01-08500
4.35 gal121 oz.-----$629.00
Quantity
C-25.25 gal
01-08600
4.35 gal-----121 oz.$627.00
Quantity
Subtotal $0.00
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Overview

WEST SYSTEM brand resins and hardeners, form a two-part epoxy system developed by Gougeon Brothers specifically for wood and composite boat construction. Rutan Aircraft Factory now recommends WEST SYSTEM epoxy 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 70F. It is also recommended in coating applications where natural finishing is desired. Partial cure time at 70F 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 70F. 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 70F. Order by size and hardener below.

Note: Pumps sold separately. Ratio pumps consists of three pumps to cover 301 and 303 A, B, & C kits. Resin pump fits either gallons or quarts.

Reviews

Product as ordered

Serge B Verified Purchase

WEST SYSTEM EPOXY KIT A-1 FAST

April 19, 2022

West Systems epoxy works great, and their matching dispenser pumps make it very easy to mix!

James R Verified Purchase

WEST SYSTEM EPOXY KIT A-2 SLOW

March 27, 2022

Have used West System Epoxy for a number of applications and very easy to work with and great results.

Gary N Verified Purchase

WEST SYSTEM EPOXY KIT A-2 SLOW

February 18, 2022

Great product. Low on fumes and set up good.

Patrick G Verified Purchase

WEST SYSTEM EPOXY KIT A-1 FAST

December 20, 2021

Works well, I usually use a slight bit more hardener than recommended. In cool, dry storage, the hardener should be used within one year.

Larry L Verified Purchase

WEST SYSTEM EPOXY KIT B-2 SLOW

November 12, 2021

I have used this product on multiple occasions and have always had excellent results. The available pumps allow for quick and accurate mixing and less waste when doing jobs requiring lengthy build up times such as the RV aircraft canopy fairing.

Glen M Verified Purchase

WEST SYSTEM EPOXY KIT A-1 FAST

November 7, 2021

I get about 10 mins of working time with the fast hardener in southern California in 80-90 temps

Dave P Verified Purchase

WEST SYSTEM EPOXY KIT A-1 FAST

August 13, 2021

Best epoxy resin i have worked with. Good pot life and slow cure make for great repair. Bond well.

Sebastien M Verified Purchase

WEST SYSTEM EPOXY KIT A-2 SLOW

August 13, 2021

Larry R Verified Purchase

WEST SYSTEM EPOXY KIT A-2 SLOW

August 4, 2021

This is exactly what I need to fill voids in wood projects made on my lathe..

Noel B Verified Purchase

WEST SYSTEM EPOXY KIT A-1 FAST

July 17, 2021

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.

Q: Do the West Systems Epoxy kits work well with fabrics?

Yes and no. This product is ideal for fiberglass applications. It is not intended for use with Dacron or Poly-Fiber fabrics.

Q: West System recommend for bonding that you wet up wood with 2 part epoxy, but that you then add fillers to thicken the epoxy before applying a thicker gap filling coat and clamping. For aircraft use, are fillers recommended or just the 2 part epoxy?

This will all depend on what the builders manual recommends. You can use a filler with the West System kits, but you will need to check where this will apply to your aircraft application.

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