Can I add glitter to this?

I've used 325 with glitter pigments, and it works very well. You'll have to add a decent amount of glitter and it will take longer to cure.

Can I use this to cast a dome-shaped mask using a silicone mold? Will it stay liquid long enough for me to tilt it back & forth to form an even coat?

Smooth-Cast 300 is a snap cure material - a better choice may be Smooth-Cast 325 or Smooth-Cast 65D, both of which have a gradual cure profile.

Yeah, to an extent. I’ve taken a dremle tool to casted plastic to sand down parts and remove unwanted flashing that occurs. It’s pretty tough stuff, let it cure for a day or two before sanding or working on thinner areas, but I’ve even taken a hacksaw to some castings and they have held up just fine.

Is this a silicone or a urethane?

This is a urethane casting resin.

Smooth Cast 300 Bright White Ultra Low Viscosity Liquid Gallon

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Description

⚡ Cast Brighter, Cure Faster, Create Stronger!

BUILT TO LAST - Fully cured castings are tough, machinable, and paint-ready for professional finishes
MIX WITH CONFIDENCE - Simple 1A:1B ratio eliminates guesswork and speeds prep
SPEED MEETS EFFICIENCY - Quick 3-minute pot life and 10-minute cure time keep your projects moving
MOISTURE SOLVENT SHIELD - Resistant to moisture and mild solvents, perfect for long-lasting creations
EFFORTLESS PRECISION CASTING - Ultra-low viscosity ensures bubble-free, bright white results every time

Smooth-Cast 300 is a bright white, ultra-low viscosity liquid resin designed for bubble-free castings without vacuum degassing. It features a convenient 1:1 mix ratio, a fast 3-minute pot life, and cures fully in 10 minutes. The resulting castings are durable, machinable, paintable, and resistant to moisture and mild solvents, making it ideal for professional-grade molding and casting projects.

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€ 493.00

Duties & taxes included

In stock

Sold byAmazon NetherlandsDelivered 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 Netherlands.

Secure transaction

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Fast, free shipping, member pricing & priority support.

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Best Sellers Rank	#19,932 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #171 in Sculpture Molding & Casting Products
Customer Reviews	4.7 out of 5 stars 1,321 Reviews

Smooth-Cast 300, Bright White, Ultra Low Viscosity Liquid, Gallon Unit

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