Hello, i tried to weigh each a & b by grams but i somehow ended up with more of part b... the bottle says 100 to 100 what did i do wrong?

It's due to the Resin being heavier than the hardener. Most 1/1 resins have a ratio of about 100/85 so you would weigh 100g of resin for 85g of hardener. Contact manufacturer for exact weight ratio. I use an app that helps me tremendously. "Epoxy Resin Calculator" By Dimitri Urich.

Despite wiping acrylic coasters with a cloth to remove skin oils, the resin pulled back from the edges. No idea how to keep that from happening. ???

Clean molds after each use. Wipe with isopropyl alcohol right before use. Temp changes can cause it too. Heat mat will help

Does anyone know of a pump that will fit these bottles?

No and it's a bad idea. Bubbles.

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LET'S RESIN 34oz Crystal Clear Epoxy Resin, Casting Resin for Beginners

Product ID: 108670624

Details

Brand
LET'S RESIN
Item Form
Liquid
Material
Epoxy Resin
Special Feature
Dries Clear
Specific Uses For Product
Craft Model

✨UV-stabilized anti-yellowing formula

🕒Full cure in 24 hours

🧪34oz total resin + hardener kit

$75.97

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Description

✨ Cast brilliance, skip the guesswork! 🧪

BEGINNER READY KIT - Includes 6 mica powders, measuring cups, and mixing sticks—zero guesswork needed.
VERSATILE DURABLE - Perfect for jewelry, coasters, molds, and more with a tough, water-resistant finish.
LOW ODOR HIGH TRUST - Ultra-low odor formula backed by 8 years of expertise and thousands of happy creators.
CRYSTAL CLEAR GLOSSY - Advanced UV protection keeps your creations vibrant and yellow-free for years.
EFFORTLESS PRO RESULTS - Mix 1:1 resin and hardener for flawless, bubble-free finishes every time.

LET'S RESIN 34oz Crystal Clear Epoxy Resin Kit combines 17oz resin and 17oz hardener with 6 vibrant mica powders and essential tools, delivering a UV-stabilized, low-odor formula that cures in 24 hours to a durable, glass-like finish. Trusted by beginners and pros alike, it’s designed for flawless, bubble-free art projects that resist yellowing and water damage.

Specifications

ASIN	B07KJLLT7M
Additional Features	Dries Clear
Best Sellers Rank	#479 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Industrial Coatings
Brand	LET'S RESIN
Brand Name	LET'S RESIN
Color	clear
Customer Reviews	4.6 out of 5 stars 6,188 Reviews
Global Trade Identification Number	00603977308201
Included Components	16oz resin, 16oz hardener, instruction
Item Dimensions	1 x 1 x 1 inches
Item Highlight	2 Part Resin and Hardener for Crafts, Bubble Free & Low Odor, Anti-Yellowing, Casting Molds, Jewelry, Art, Easy to Mix
Item Weight	2 pounds
Item dimensions L x W x H	1 x 1 x 1 inches
Manufacturer	LET'S RESIN
Manufacturer Part Number	LET'S RESIN
Material	Epoxy Resin
Material Type	Epoxy Resin
Model Number	LET'S RESIN
Number of Packs	2
Number of Pieces	2
Size	34oz
UPC	603977308201
Unit Count	32 Ounce

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$75.97

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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