---
product_id: 170817349
title: "R PRO 20 Medium Hardness Liquid Mold-Making Silicone, Easy to Use (1:1) and Non-Toxic, High Tear Resistance, Ideal for DIY, Compatible with Resin, Cement, and Plaster (1 kg)"
brand: "reschimica"
price: "€ 117.24"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/170817349-r-pro-20-medium-hardness-liquid-mold-making-silicone-easy
store_origin: SK
region: Slovakia
---

# 45 min working time 1:1 easy mix ratio High tear resistance R PRO 20 Medium Hardness Liquid Mold-Making Silicone, Easy to Use (1:1) and Non-Toxic, High Tear Resistance, Ideal for DIY, Compatible with Resin, Cement, and Plaster (1 kg)

**Brand:** reschimica
**Price:** € 117.24
**Availability:** ✅ In Stock

## Summary

> 🛠️ Mold your creativity with precision and ease — don’t get left behind!

## Quick Answers

- **What is this?** R PRO 20 Medium Hardness Liquid Mold-Making Silicone, Easy to Use (1:1) and Non-Toxic, High Tear Resistance, Ideal for DIY, Compatible with Resin, Cement, and Plaster (1 kg) by reschimica
- **How much does it cost?** € 117.24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/170817349-r-pro-20-medium-hardness-liquid-mold-making-silicone-easy)

## Best For

- reschimica enthusiasts

## Why This Product

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

## Key Features

- • **Fast Turnaround:** Cures in just 3 hours so your projects keep moving
- • **Durable & Elastic:** Medium 20 Shore A hardness molds resist tearing and last longer
- • **Effortless Mixing:** True 1:1 ratio means no guesswork, no vacuum needed
- • **Precision Perfect Molds:** Captures every fine detail and undercut flawlessly
- • **Versatile Compatibility:** Works seamlessly with resin, cement, plaster & more

## Overview

R PRO 20 is a professional-grade, medium-hardness (20 Shore A) liquid silicone rubber designed for mold making. It features a user-friendly 1:1 mix ratio, high tear resistance, and excellent detail reproduction without shrinkage. Compatible with resin, cement, and plaster, it cures in 3 hours with a 45-minute working time, making it ideal for DIY enthusiasts and pros seeking durable, elastic molds.

## Description

R PRO 20 Medium Hardness Liquid Mold-Making Silicone, Easy to Use (1:1) and Non-Toxic, High Tear Resistance, Ideal for DIY, Compatible with Resin, Cement, and Plaster (1 kg)

## Features

- ✔️FEATURES: R PRO 20 is a 1:1 addition-cure liquid silicone rubber with high tear resistance. Suitable for modeling and mold making, this versatile silicone is ideal for creating medium-hardness molds (20 Shore) that reproduce even the smallest details and undercuts.
- ✔️HIGH PERFORMANCE: R PRO 20 silicone for molds faithfully reproduces fine details, allows up to 20% more castings compared to other silicones, and molds have no linear shrinkage. It is a very fluid rubber that ensures easy mixing and does not require vacuum degassing.
- ✔️HARDNESS: Once cured, this silicone produces soft molds (20 Shore A hardness) that are highly elastic and resistant to tearing. Working time: 45 minutes – Curing time: 3 hours.
- ✔️MOLD PERFORMANCE: The physical lifespan of the mold depends on its use (casting materials, frequency, etc.). Casting abrasive materials such as concrete can quickly wear out mold details, while non-abrasive materials (such as wax) preserve them.
- ✔️NOTE: Sulfur-based plasticine is NOT compatible and may inhibit the curing of R PRO silicones.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Reschimica |
| Part number | r-pro-20 |
| Item Weight | 1 kg |
| Package Dimensions | 20.4 x 14.9 x 7.7 cm; 1 kg |
| Item model number | WD-QQAY-BNPM |
| Size | 1 Kg |
| Colour | Blue |
| Material | Silicone |
| Shape | Decorative |
| Item Package Quantity | 1 |
| Special Features | Non-Toxic |
| Included components | Mould |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Silicone
- **Colour:** Blue
- **Brand:** Reschimica
- **Shape:** Decorative
- **Manufacturer:** Reschimica

## Images

![R PRO 20 Medium Hardness Liquid Mold-Making Silicone, Easy to Use (1:1) and Non-Toxic, High Tear Resistance, Ideal for DIY, Compatible with Resin, Cement, and Plaster (1 kg) - Image 1](https://m.media-amazon.com/images/I/61zArXHppzL.jpg)

## Available Options

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

## Questions & Answers

**Q: What materials can I cast in the mold made with R PRO 20 silicone rubber?**
A: Clear epoxy resin, polyurethane resin, polyester resin, acrylic resin, plaster, jesmonite, wax, cement, paraffin.

**Q: What kind of molds can I make with R PRO 20 silicone rubber?**
A: R PRO 20 rubber is ideal for creating medium hard molds for casting of various types (open-cast, bi-valve, multi-valve, monobloc and shelled), to be used in the prototyping, model making, art and design sectors.

**Q: Can R PRO 20 silicone rubber cause allergic reactions?**
A: R PRO 20 silicone rubber is considered hypoallergenic and does not cause allergic reactions. However, if you are sensitive to silicone materials, you may want to test a small area of skin before using.

**Q: How do I clean a silicone mold?**
A: Cleaning a mold can be done with warm soapy water, or you can soak it in a solution of baking soda and water to remove any lingering residue. Make sure you dry it completely after cleaning.

**Q: How can I avoid the sticking of R PRO 20 silicone rubber when using a silicone rubber mould?**
A: A silicone rubber mold does not require lubrication due to its non-stick properties. However, for some preparations, such as greasy or oily ones, you may need to apply a light coat of release agent to avoid sticking.

## Frequently Bought Together

- R PRO 20 (1 kg /35,27 oz) Silicone Rubber for Silicone Medium Hardness Moulds,Silicone Mould Making kit for DIY, 100% Safe,high Tear Resistance,1:1 Mix Ratio
- Reschimica Liquid Silicone Rubber for Molds 1:1 R PRO 30, Non-toxic, Easy to Use, resistant to breakage, 30 shore, Compatible with epoxy resins, plaster, wax and other materials (1 kg)
- CRAFT RESIN 8L Epoxy Resin Kit - Crystal Clear Epoxy Resin Kit & Hardener for DIY Art, Mold Casting, Wood, Jewelry Making, Coasters, Table Top, Countertop Coating - Food Safe, Heat & UV Resistant

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-23*