---
product_id: 56867379
title: "Polycraft F38 Fastcast Polyurethane Casting Resin - 4kg Kit"
brand: "polycraft ( mb fibreglass )"
price: "$394.43"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/56867379-polycraft-f38-fastcast-polyurethane-casting-resin-4kg-kit
store_origin: US
region: United States of America
---

# 20 min fast demould superior paint adhesion 2 min pot life Polycraft F38 Fastcast Polyurethane Casting Resin - 4kg Kit

**Brand:** polycraft ( mb fibreglass )
**Price:** $394.43
**Availability:** ✅ In Stock

## Summary

> ⚡ Cast fast, paint flawless, lead the pack!

## Quick Answers

- **What is this?** Polycraft F38 Fastcast Polyurethane Casting Resin - 4kg Kit by polycraft ( mb fibreglass )
- **How much does it cost?** $394.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/56867379-polycraft-f38-fastcast-polyurethane-casting-resin-4kg-kit)

## Best For

- polycraft ( mb fibreglass ) enthusiasts

## Why This Product

- Trusted polycraft ( mb fibreglass ) brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Generous 4kg Kit:** Enough resin to power through multiple projects without constant reordering.
- • **Lightning-Fast Casting:** Get your models ready in just 20 minutes—no more waiting around.
- • **Precision Pouring Window:** 2-minute pot life at 25°C ensures you work swiftly and efficiently.
- • **Trusted Brand Reliability:** Polycraft F38, the go-to resin for professional modellers demanding speed and quality.
- • **Flawless Finish Every Time:** Exceptional paint adhesion guarantees your scale military models look museum-quality.

## Overview

Polycraft F38 Fastcast is a 4kg polyurethane resin kit designed for scale military modellers, featuring a rapid 2-minute pot life and a quick 20-minute demould time. Its excellent paint adhesion ensures high-quality finishes, making it ideal for professionals seeking speed and precision in casting.

## Description

Product description               Polycraft F38 offers excellent impact resistance, is very low viscosity with a thermoplastic aspect. With a low shrinkage ratio, short demould time and good ability for painting, this resin is widely used within the small prototype and scale model industry. The F38 has a pot life of 2 minutes and a demould time of 20 - 25 minutes with a full cure of around 72 hours. Fast Demoulding Time Easy-To-Use Low Chemical Attack Towards Silicone Moulds Good Ability For Being Painted Mix Ratio by Weight : 100 A : 100 B Mixed Viscosity mPas : 35 Pot Life (200g, 25°C) : 2 Minutes Demould Time : 20 Minutes Shore D Hardness : 72 Flexural Strength Mpa : 48 Flexural Modulus Elasticity : 750 mpa Maximum Casting Thickness : 5mm - 10mm Glass Transition Temp : 55°C  Cured Colour : Off White / Cream For best results ensure resins and moulds are at temperature above 18°C before using, using at colder temperatures will effect cured characteristics and may inhibit cure. Ensure moulds are free from dust and other contaminants. Always perform small test before pouring large amounts to ensure suitability. F38 is extremely moisture sensitive, keep containers closed when not in use. When stored correctly unopened product has a shelf life of 3 months from purchase. Please refer to technical datasheets for further information regarding usage.                  Legal Disclaimer               Unfortunately we are unable to ship this item to, Isle of Man, Channel Islands or any Scottish Islands. Orders placed for these addresses will be cancelled and refunded due to carrier restrictions.

## Features

- Polycraft F38 Fast Cast Polyurethane Resin
- Ideal For Scale Military Modeller Casting Environments
- Pot Life 200g/25°c : 2 Minutes
- Excellent Paint Adhesion
- Rapid 20min Demould

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Polycraft ( MB Fibreglass ) |
| Model Number | F38 |
| Item Weight | 4 kg |
| Material | Resin |
| Item Weight | 4 kg |

## Product Details

- **Brand:** Polycraft ( MB Fibreglass )
- **Age range (description):** Adult
- **Material:** Resin
- **Item weight:** 4 Kilograms

## Images

![Polycraft F38 Fastcast Polyurethane Casting Resin - 4kg Kit - Image 1](https://m.media-amazon.com/images/I/61Ikz2M+80L.jpg)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-22*