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WEST SYSTEM 205 Fast Hardener 206ml - Use with WEST SYSTEM 105 Epoxy Resin for Fibreglass & Wood, Metal, Glass Repair - Pair with Filler & Mixer Accessories - Ideal for Marine, & DIY Applications

WEST SYSTEM 205 Fast Hardener 206ml - Use with WEST SYSTEM 105 Epoxy Resin for Fibreglass & Wood, Metal, Glass Repair - Pair with Filler & Mixer Accessories - Ideal for Marine, & DIY Applications

Q: The description of this item says .43 Pints which is 7 ounces. However, the picture of the container says 27.5 ounces. Which is it?

The WEST Systems products are sold in several sizes. 7 oz round cans, 32 oz rectangular cans as shown here, and large rectangular cans of 126 oz. Try to confirm the size you are buying.

Q: Shelf life of 205 hardener? My cured epoxy (105+205) is soft, gooey, even when measured exactly with a syringe.

I believe 105 resin takes a higher proportion of hardener than 205 resin. Check the directions.

Q: How much faster than the "slow" hardener does the "fast" one cure?

On the manufacturer's website states cure time is 6 to 8 hours. The pot life at 72 degrees Celsius has 6 to 12 minutes to work with.

Q: Will the pumps work on the smaller 7 fl oz cans ?

I believe that if you purchase the set of 3 pumps, the smallest will fit the smallest container which is, I think, a pint. If you don't routinely use something like an eighth cup or more, you might want to consider buying some syringes from a farm supply store (a 60ml syringe for the resin and a 12 ml for the hardener). I recommend these sixes because the epoxy is mixed at a 5:1 ratio of resin to hardener and syringes of these sizes mix one major increment of one to one major increment of the other. Contact me again if this isn't clear.

Product ID: 51884632

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Details

Brand
West System
Specific uses for product
Automotive
Material
Epoxy Resin
Item form
Liquid
Special feature
Waterproof

💧Waterproof & moisture-resistant

🔗Strong multi-material bond

⏱️Fast 5-7 hour cure

Description

🔧 Fast, flawless fixes that keep you ahead of the curve.

PRECISION MIX RATIO - Optimized 5:1 resin to hardener ratio ensures consistent, reliable results every time.
SHRINKAGE NOT HERE - Minimal cure shrinkage maintains structural integrity and flawless finishes.
UNIVERSAL BONDING POWER - Seamlessly bonds wood, fibreglass, metal, and plastic for versatile DIY and professional fixes.
RAPID STRENGTH ZERO WAIT - Cures in just 5-7 hours to keep your projects moving at millennial speed.
MARINE GRADE MOISTURE DEFENSE - Waterproof formula perfect for boat repairs, kayaks, and any water-exposed surfaces.

WEST SYSTEM 205 Fast Hardener is a 206ml epoxy hardener designed to pair with WEST SYSTEM 105 Epoxy Resin at a precise 5:1 ratio. It delivers rapid curing in 5-7 hours, creating strong, waterproof bonds across wood, fibreglass, metal, and plastic. Ideal for marine and DIY applications, it offers minimal shrinkage for durable, dimensionally stable repairs.

Specifications

Manufacturer	Gougeon Brothers, Inc.
Part number	205-A
Item Weight	272 g
Product Dimensions	6.6 x 6.6 x 9.27 cm; 272.16 g
Item model number	205
Size	206ml
Colour	Clear
Style	Fast Hardener
Material	Epoxy Resin
Item Package Quantity	1
Number of Pieces	1
Special Features	Waterproof
Specific uses	Automotive, Fibreglass
Included components	West System 205-A Fast Hardener
Batteries included?	No
Batteries Required?	No

Have a Question? See What Others Asked

The description of this item says .43 Pints which is 7 ounces. However, the picture of the container says 27.5 ounces. Which is it?

Shelf life of 205 hardener? My cured epoxy (105+205) is soft, gooey, even when measured exactly with a syringe.

How much faster than the "slow" hardener does the "fast" one cure?

Will the pumps work on the smaller 7 fl oz cans ?

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