---
title: "Which is Better: Polyurethane or Silicone?"
description: "Which is better: polyurethane or silicone? Let's examine the technical characteristics of both materials. Polyurethane is valued for its unique property -"
lang: "en"
date: "2020-06-01"
canonical_url: "https://timol.com.ua/en/statti/chto-luchshe-poliuretan-ili-silikon"
---
# Which is Better: Polyurethane or Silicone?

The eternal dilemma for many manufacturers is: which is better, [polyurethane](https://www.timol.com.ua/) or silicone? In this article, experts from the Ukrainian factory TIMOL will discuss the main properties of synthetic polymers and why polyurethane products are so popular.

## Properties and Purpose of Both Materials

To determine whether polyurethane or silicone is better, we need to understand the technical properties of both materials. Let's start by examining what silicone is.

Typically, a two-component silicone material is used in production. It consists of a compound and a catalyst. The latter is necessary to harden the raw material. Minor dosing errors are quite permissible and do not affect the final result.

The main advantages of silicone include:

- Absence of toxic elements in the composition;
- Easily mixes with other additives;
- Almost no shrinkage;
- Heat resistance above 200 °C;
- Ability to create products with various textures and finishes;
- Easy to demold finished products without using mold release agents.

Silicone is generally popular for producing various molding trays, household items, toys, jewelry, and even kitchenware. It is often used in various industrial sectors.

Polyurethane has proven itself in many industrial fields: medicine, mechanical engineering, furniture production, and so on. The material consists of two main components and additives that determine its technical properties, such as high elasticity, hardness, and more.

The main advantages of this raw material include:

- High strength percentage;
- Resistance to alkaline environments, solvents, oils, and varnishes;
- Increased elasticity;
- Ability to withstand temperature ranges from -60 to +80 °C;
- Minimal shrinkage.

Polyurethane is valued for its unique property of returning to its original shape after deformation, which no other material can match. It is more durable compared to silicone and will last as long as possible. Due to its high elasticity and resilience, it can absorb vibrations, making it suitable for manufacturing bushings and shock absorbers.

### Comparison of Silicone and Polyurethane Materials

If you're wondering which to choose in terms of product durability: polyurethane or silicone? The first option is considered more robust and has a longer service life. Moreover, if you produce molding trays for ceramic, concrete, and plastic products, polymer samples have better adhesion. Unlike silicone, this material is used in the aviation industry and many other fields, such as medicine. In liquid form, it is used as insulation for residential and industrial premises, and in sheet form for stamping.

Polyurethane is used to create decorative moldings. Its main advantage is that it is not affected by ultraviolet light, so it does not fade. This allows designs to remain virtually perfect for years. Because the material withstands high humidity, it is used in bathrooms, pools, and saunas. Mold and other fungi do not grow on its surface, so the material requires minimal maintenance. Polyurethane is also used for making shoe soles.

Before deciding whether to choose silicone or polyurethane, it's important to consider the main disadvantages of both materials.

The main drawbacks of polyurethane materials:

- Harmful substances are released when heated, so work with the material should be done in a well-ventilated area and with precautions;
- When casting forms, ensure there are no bubbles on the surface. This problem is quickly resolved if modern equipment is used that maintains optimal temperature and mixes the solution to a homogeneous mass;
- Immediately after production, polyurethane products should be protected from moisture and water. Once fully cured, they can be used to their full extent;
- Polyurethane is more complex to work with compared to silicone. However, its technical properties, unmatched by any similar materials, compensate for this.

Disadvantages of silicone:

- The material has low resistance to alkaline environments and solvents. This property significantly reduces the number of industrial sectors where the raw material can be applied;
- Silicone products are very difficult to paint. The paint adheres unevenly, especially on the sides, and more time is needed to complete this operation;
- Low strength. This is the main drawback of silicone, as it wears out faster, meaning parts or other products will need replacement, leading to additional costs.

As you can see, the disadvantages of polyurethane are quite solvable and not particularly critical. Silicone, however, has less wear resistance, a drawback that cannot be corrected by modern equipment or chemical additives. But the polymer must be of high quality to possess all the advantages described above. Our factory offers such raw materials so you can produce only high-class products.

### How to Order Polyurethane Material from TIMOL?

To order polyurethane in any form (liquid or sheet), you need to contact TIMOL's managers using the contact phone numbers listed on the website. An employee will provide you with cooperation details and send the current price list.