---
product_id: 1871291
title: "Smooth-Cast 325 1.9lb Kit"
brand: "smooth-on"
price: "€ 49.29"
currency: EUR
in_stock: true
reviews_count: 5
category: "Smooth On"
url: https://www.desertcart.ie/products/1871291-smooth-cast-325-1-9lb-kit
store_origin: IE
region: Ireland
---

# 3 min pot life 10 min fast cure 1:1 mix ratio Smooth-Cast 325 1.9lb Kit

**Brand:** smooth-on
**Price:** € 49.29
**Availability:** ✅ In Stock

## Summary

> ⚡ Cast like a pro, fast and flawless every time!

## Quick Answers

- **What is this?** Smooth-Cast 325 1.9lb Kit by smooth-on
- **How much does it cost?** € 49.29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/1871291-smooth-cast-325-1-9lb-kit)

## Best For

- smooth-on enthusiasts

## Why This Product

- Trusted smooth-on brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Turnaround:** Fast 3-minute pot life and 10-minute cure time keep your projects moving at lightning speed.
- • **Effortless Mixing:** Simple 1:1 volume ratio means no guesswork—just pour, mix, and create.
- • **Bubble-Free Finish:** Low viscosity formula eliminates vacuum degassing—perfectly smooth results without the hassle.
- • **Durable & Versatile:** Shore 72D hardness delivers professional-grade strength compatible with marble, metal, plastic, and wood.
- • **Precision Color Matching:** Clear amber resin ensures flawless, color-neutral casting every time.

## Overview

Smooth-On Smooth-Cast 325 is a low viscosity, clear amber urethane resin kit designed for fast, bubble-free casting with a quick 3-minute pot life and 10-minute cure time. Its 1:1 mix ratio and Shore 72D hardness make it ideal for professional-quality molds compatible with various materials, streamlining your creative workflow without the need for vacuum degassing.

## Description

Buy Smooth-On Smooth-Cast 325 1.9lb Kit: Molding & Casting - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works and looks great - Smooth cast 325 if a go to for me personally .. it mixes color perfectly, and is super easy to use. I've never had any issues with quality or durability with anything I've used it for, with the exception of its shelf life. If it sits for a couple of months, you need to mix very well before next use (especially the part A). The pot life is perfect for me personally, but if it dries too quickly, check into 326
Review: Good for those who know what they are doing... - Otherwise it can be messy.

## Features

- Low viscosity casting resin with clear amber color ("Color Neutral" - for best colormatching)
- Vacuum degassing is not necessary to yield castings that are virtually bubble free.
- Pot Life: 3 minutes; Cure Time: 10 minutes
- Shore 72D
- Mix Ratio: 1A: 1B by Volume

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008UG7R6Q |
| Best Sellers Rank | #69,345 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #557 in Sculpture Molding & Casting Products |
| Brand | Smooth-On |
| Brand Name | Smooth-On |
| Color | Clear Amber |
| Compatible Material | Marble, Metal, Plastic, Wood |
| Container Type | Can |
| Customer Reviews | 4.2 out of 5 stars 23 Reviews |
| Full Cure Time | 10 Minutes |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 2.3 Pounds |
| Manufacturer | Smooth-On, Inc. |
| Material | Urethane Resin |
| Material Type | Urethane Resin |
| Model | 4336899748 |
| Other Special Features of the Product | Fast Drying |
| Special Feature | Fast Drying |
| Specific Uses For Product | Craft, Art, Casting |
| UPC | 751635488410 |
| Unit Count | 1 Count |
| Viscosity | Low |
| Volume | 16 Fluid Ounces |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Smooth-On
- **Item Form:** Liquid
- **Material:** Urethane Resin
- **Special Feature:** Fast Drying
- **Specific Uses For Product:** Craft, Art, Casting

## Images

![Smooth-Cast 325 1.9lb Kit - Image 1](https://m.media-amazon.com/images/I/71m0+XiTuoL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What filler do I add to simulate the density of wood?**
A: Our Ure-Fil 5 is a popular choice for this.

**Q: I want to make trumpet mouth pieces that are softer than the actual brass ones. Will this work for my intention? Will this include all that I need?**
A: You could make a mouth piece with it, but whether the chemicals are safe for humans is a different story. The people at Smooth-on are available everyday to give information on the safety and life of their products. Go to the web site and give them a call. There is much to be learned, and they have the place to do it.

**Q: is it food grade ?**
A: i wouldn't eat it....or anything out of it....

**Q: i want to make glow in the dark jewellery with glow worm powder. i want solid form not the rubber type. so which is best for me smooth cast 325 or 300**
A: both products cure into solid form. 300 cures white, 325 cures clear.  keep in mind that glow worm powder makes both cloudy.  and if you use pigment,  300 is more pastel.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works and looks great
*by J***R on November 23, 2025*

Smooth cast 325 if a go to for me personally .. it mixes color perfectly, and is super easy to use. I've never had any issues with quality or durability with anything I've used it for, with the exception of its shelf life. If it sits for a couple of months, you need to mix very well before next use (especially the part A). The pot life is perfect for me personally, but if it dries too quickly, check into 326

### ⭐⭐⭐⭐⭐ Good for those who know what they are doing...
*by J***K on January 29, 2019*

Otherwise it can be messy.

### ⭐⭐⭐⭐⭐ Five Stars
*by C***P on April 1, 2018*

Great product

## Frequently Bought Together

- Smooth-On Smooth-Cast 325 - Ultra Low Viscosity Liquid Plastic Resin - Clear Amber - Pint Unit
- Smooth-On Mold Star™ 16 Fast Platinum Silicone Rubber, Silicone Mold Making Kit - Pint Unit
- LEGO Classic Creative Suitcase 10713 - Includes Sorting Storage Organizer Case with Fun Colorful Building Bricks, Preschool Learning Toy for Kids, Boys and Girls Ages 4 Years Old and Up

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-08*