how much hardner do i need for 4.35 gallons?

The resin and hardener come as a 5 to 1 ratio. The resisnt exactly a gallon, the hardener in I think a 25 oz can goes with a “gallon” of resin so you would need to get five of these 25 oz cans of hardener and you’ll have 2/3 of a can of hardener left when you’ve used up your 4.35 gallons of resin.

I have used Envirotex Lite to coat tiles and it is crystal clear but SO long to cure. Question is if this is crystal clear? And how long to cure?

You have to use 207 hardner and 207 resin. Go to West system site and read about clear finish.

Do these containers come full ? appeared to have channellock marks on lid channel and there was hardener on inner lid. Missing 2 inches of product.

It doesn't matter. It was obviously opened by someone. Just return it and get another one or a refund.

My set of resin and hardener came today, but the hardener is brownish/redish in color when I pump it out. Is that correct or should I return it?

My hardener was slightly brownish when mixing with the resin, but after mixing it would clear up, and it would harden clear as well. If it is very pronounced, you may have a problem, but if it is just a tint that goes away when you mix, that seems to be normal. You may want to do a test on some scrap material to confirm.

Fast Hardener 205 86 Quart By West System

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Description

⚡ Speed meets strength: Fast Harden your projects with confidence!

RAPID CURE POWER - Get projects done faster with fast-drying #205 hardener ⚡
PRECISION PACKAGING - Perfect .86 quart size to minimize waste and maximize efficiency 📏
WATERPROOF DURABILITY - Seals and protects with a waterproof epoxy formula 💧
TRUSTED BY PROS HOBBYISTS - Highly rated (4.8⭐) for superior adhesive strength and versatility
WEATHER RESISTANT PERFORMANCE - Reliable curing even in cold conditions ❄️

WEST SYSTEM FAST HARDENER #205 is a fast-curing, waterproof epoxy resin designed for cold weather and quick turnaround projects. Packaged in a convenient .86 quart bottle, it offers professional-grade adhesive strength favored by both hobbyists and experts, ensuring efficient, durable, and reliable bonding every time.

Specifications

ASIN	B0002NY6SW
Brand	WEST SYSTEM
Brand Name	WEST SYSTEM
Colour	clear
Container Type	Bottle
Customer Reviews	4.8 out of 5 stars 216 Reviews
Global Trade Identification Number	00811343010577
Item Form	Liquid
Item Package Quantity	1
Item Weight	998 g
Manufacturer Part Number	205B
Material	Epoxy Resin
Material Type	Epoxy Resin
Model	205-B
Number of Pieces	1
Other Special Features of the Product	Fast Drying
Special Feature	Fast Drying
Specific Uses For Product	Marine Bonding & Laminating, General Purpose Bonding & Repair
UPC	811343010577 780333707172 799916783816
Volume	0.86 Quarts
Water Resistance Level	Waterproof

Reviews

J**.

West System Products are Great!

West System Products are wonderful for both hobbyists and professionals. Convent package sizes make it easy to buy the right amount without waste. 205-B is great for cold weather or fast cure needs.

24.11.2025

J**.

Delivery ahead of schedule

Timely delivery of product is always desirable. West systems offers among the best performance for an adhesive and structural epoxy. Not to be confused with a slow cure or high depth of pour product.

6.06.2024

D**T

Worth the expense!

Outstanding Application every time!

1.03.2025

G**.

Fast delivery, good price

Fast delivery

30.03.2026

K**N

Know quality,know WestSystem. No quality,no WestSystem.

Can't go wrong with West System. This is the fast hardener, compared to the Slow. Duh. The other pic is of their 404 high-density filler. I use it to make the epoxy thicker. I have dyed it also to make it match the color of wood. Works great! Thanks West System, your a good guy.

1.04.2021

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