---
product_id: 50331848
title: "Polytek 74-45 Liquid Polyurethane Rubber (16lb Kit)"
brand: "polytek"
price: "฿45958"
currency: THB
in_stock: true
reviews_count: 1
category: "Polytek"
url: https://www.desertcart.co.th/products/50331848-polytek-74-45-liquid-polyurethane-rubber-16lb-kit
store_origin: TH
region: Thailand
---

# 30 min pour time Shore A45 durable yellow rubber 1:1 precise mix ratio Polytek 74-45 Liquid Polyurethane Rubber (16lb Kit)

**Brand:** polytek
**Price:** ฿45958
**Availability:** ✅ In Stock

## Summary

> 🛠️ Mold like a pro, last like a legend.

## Quick Answers

- **What is this?** Polytek 74-45 Liquid Polyurethane Rubber (16lb Kit) by polytek
- **How much does it cost?** ฿45958 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/50331848-polytek-74-45-liquid-polyurethane-rubber-16lb-kit)

## Best For

- polytek enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Creators:** Pro-grade formula with rave reviews and responsive support.
- • **Versatile Application:** Pourable liquid rubber easily thickened for brush-on precision.
- • **Optimal Working Window:** 30 minutes of pour time lets you craft without rush or waste.
- • **Perfectly Balanced Mix:** Achieve flawless results every time with a simple 1:1 ratio.
- • **Long-Lasting Durability:** Shore A45 hardness ensures molds that withstand repeated use.

## Overview

Polytek 74-45 is a two-part liquid polyurethane rubber kit that cures to a tough, yellow Shore A45 rubber. With a 1:1 mix ratio and 30-minute pour time, it offers precision and ease for creating durable molds. Ideal for both pour and brush-on applications, this kit is favored by professionals for its resilience and reliable performance.

## Description

Poly 74-45 Liquid Rubber is a two-part, liquid polyurethane system that cures (RTV) to a yellow, Shore A45 rubber. This is a pourable rubber, but it can be easily thickened with PolyFiber II Thickener for brush-on application.

Review: The stuff is damn near indestructible - This stuff is amazing. If you need to create an almost indestructible 'rubber' mold you're looking at the right stuff. I've cast almost 20 bricks in the 2 molds I made from this stuff and after I clean them, they look like the day I created them. I went to my local Ace Hardware store bought one of those paint measuring buckets to mix A & B. Cleanup needs to happen quickly. The mixture has the consistency of something between maple syrup & honey. You can reseal the buckets at least once. Removing the brick I used to make the mold was challenging, I suspect I used the wrong release agent. Removing the bricks I made with the molds was not nearly as challenging. I sent Polytek an email on release agents and received an accurate and professional response within 24 hours.

## Features

- Mix Ratio: 1A:1B
- Shore Hardness: A45
- Pour Time: 30 min.
- Demold Time: 16 hr.
- Cured Color: Yellow

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B075SGY738 |
| Best Sellers Rank | #358,335 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #2,056 in Sculpture Molding & Casting Products |
| Customer Reviews | 4.4 4.4 out of 5 stars (10) |
| Date First Available | September 20, 2017 |
| Is Discontinued By Manufacturer | No |
| Item model number | 4336899669 |
| Manufacturer | Polytek |

## Images

![Polytek 74-45 Liquid Polyurethane Rubber (16lb Kit) - Image 1](https://m.media-amazon.com/images/I/51bfn6IsCbL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ The stuff is damn near indestructible
*by C***. on May 23, 2025*

This stuff is amazing. If you need to create an almost indestructible 'rubber' mold you're looking at the right stuff. I've cast almost 20 bricks in the 2 molds I made from this stuff and after I clean them, they look like the day I created them. I went to my local Ace Hardware store bought one of those paint measuring buckets to mix A & B. Cleanup needs to happen quickly. The mixture has the consistency of something between maple syrup & honey. You can reseal the buckets at least once. Removing the brick I used to make the mold was challenging, I suspect I used the wrong release agent. Removing the bricks I made with the molds was not nearly as challenging. I sent Polytek an email on release agents and received an accurate and professional response within 24 hours.

## Frequently Bought Together

- Polytek 74-45 Liquid Polyurethane Rubber (16lb Kit)
- Polytek Pol-Ease 2500 Release Agent (12oz. Can)
- Polytek Poly PVA Solution (2lb Green)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-10*