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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FAST HARDENER #205, .86 QUART by WEST SYSTEM

Product ID: 458862882

Details

Brand
WEST SYSTEM
Colour
clear
Item Form
Liquid
Item Package Quantity
1
Special Feature
Fast Drying

⚡Fast Drying in under 30 mins

💧Waterproof for marine-grade durability

🧴0.86 Quart precision bottle

Description

⚡ Cure Fast, Finish First – Don’t Let Slow Drying Hold You Back!

COLD WEATHER READY - Formulated to cure quickly even in low temperatures, so your deadlines never slip.
PRECISION PACKAGING - Convenient 0.86 quart bottle ensures no waste, just the right amount every time.
MARINE GRADE WATERPROOF - Engineered to withstand harsh water environments, perfect for boat repairs and laminating.
RAPID CURE ZERO DOWNTIME - Get back to your project faster with industry-leading fast drying technology.
TRUSTED BY PROS HOBBYISTS - Highly rated with 4.8 stars from 216 reviews, a proven choice for quality and reliability.

WEST SYSTEM FAST HARDENER #205 is a fast-drying, waterproof epoxy resin hardener in a convenient 0.86 quart bottle. Ideal for marine bonding, laminating, and general repairs, it cures quickly even in cold weather, ensuring professional-grade results with minimal wait time. Trusted by both hobbyists and professionals, it delivers reliable performance with a 4.8-star rating from over 200 users.

Specifications

ASIN	B0002NY6SW
Brand Name	WEST SYSTEM
Colour	clear
Container Type	Bottle
Customer Reviews	4.8 4.8 out of 5 stars (219)
Global Trade Identification Number	00811343010577
Item Form	Liquid
Item Package Quantity	1
Item Weight	2.2 Pounds
Manufacturer Part Number	205B
Model	205-B
Number of Pieces	1
Other Special Features of the Product	Fast Drying
UPC	811343010577 780333707172 799916783816
Volume	0.86 Quarts
Water Resistance Level	Waterproof

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