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.

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205-B Fast Epoxy Hardener, 27.5 oz | Fast Cure, Cooler Climates | Cure fast and get back to work even in cooler conditions with this reliable, fast-curing epoxy hardener.

Product ID: 5397946

Details

Brand
West System
Item Form
Liquid
Material
Epoxy
Special Feature
Waterproof
Specific Uses For Product
Tile Repair

💪High-strength, moisture-resistant

⏱️Fast 6-8 hr cure time

❄️Cures down to 40°F (4°C)

€ 157.03

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Description

⚡ Cure fast, bond strong, and never miss a deadline!

COLD WEATHER READY - Works flawlessly even at chilly 40°F—no project delays.
PRECISION MIX RATIO - Optimized 5:1 resin-to-hardener for unbeatable bonding.
CUSTOMIZABLE FORMULA - Easily tailored with fillers & pigments for your unique needs.
RAPID ROOM TEMP CURE - Get solid strength in just hours, not days.
WATERPROOF DURABILITY - Built to withstand moisture, perfect for marine & outdoor use.

West System 205-B Fast Hardener is a medium-viscosity epoxy curing agent designed for rapid curing at room temperature and as low as 40°F. When mixed with West System 105 Resin at a 5:1 ratio, it forms a rigid, high-strength, moisture-resistant bond ideal for bonding, coating, and structural repairs. With a pot life of 9-12 minutes and full cure in 1-4 days, it’s perfect for professionals needing fast, reliable results in diverse conditions.

Specifications

ASIN	B0002NY6SW
Best Sellers Rank	#48,929 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #40 in Boat Painting Supplies
Brand	West System
Brand Name	West System
Color	Clear
Compatible Material	Fiberglass
Container Type	Can
Customer Reviews	4.8 out of 5 stars 226 Reviews
Full Cure Time	4 days
Global Trade Identification Number	00811343010577
Included Components	Epoxy
Item Form	Liquid
Item Package Quantity	1
Item Type Name	Epoxy
Item Weight	2.2 pounds
Manufacturer	WEST SYSTEM
Material	Epoxy
Material Type	Epoxy
Model	205-B
Number of Pieces	1
Other Special Features of the Product	Waterproof
Part Number	205B
Special Feature	Waterproof
Specific Uses For Product	Tile Repair
UPC	811343010577 780333707172 799916783816
Unit Count	1 Fluid Ounces
Viscosity Level	Medium
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

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

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

S**S

Great product for boat repairs

The West System of epoxy products are fantastic for boat repairs. Have used West products for over a decade and am very pleased with the results.

20.04.2023

A**R

Great epoxy for boat repairs!

This stuff is expensive, but it is the best I have ever used. Never lets you down.

6.06.2022

M**G

Top notch product

Use with 105 for a great finish

16.04.2023

C**A

Ok item

Good item

24.03.2024

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