---
title: "How to Make Polyurethane at Home"
description: "How to make polyurethane at home? What is the polymer melting process? Tips for working with polyurethane. Visit TIMOL."
lang: "en"
date: "2020-06-01"
canonical_url: "https://timol.com.ua/en/statti/kak-sdelat-poliuretan-v-domashnikh-uslovijakh"
---
# How to Make Polyurethane at Home

## What components and tools are needed to make polyurethane products yourself?

Compared to rubber, polyurethane products and coatings are distinguished by higher strength and durability. You can not only purchase products made from this material from manufacturers or the market but also make them yourself.

You will need the following ingredients:

- Polymer SKU-PFL-100. It is most suitable for production in home workshops. Unlike other analogs, it does not foam when in contact with air;
- Hardener. Many recommend buying "Kuralon" in granules;
- "Penta" lubricant to prevent sticking of products.

Additionally, you will need scales (preferably with weights), tin cans (coffee cans will do) or any other forms that can be heated, a hairdryer (preferably industrial, but a household model will suffice).

When working with the polymer, it is necessary to limit contact with water so that the material hardens as much as possible during storage. Therefore, consider this feature when preparing the room and work surface. Next, prepare the mold for casting the future part. If you plan to reuse it, the surface must be pre-treated with lubricant.

### Polymer melting technology

To make strong and high-quality products, you need to know how to properly melt polyurethane at home to avoid mistakes and not spoil the final result.

First, you need to heat and then cool several tin cans or other forms. Pour the polymer into one of them and be sure to weigh it, subtracting the weight of the container. In another, pour the hardener. Its amount should be approximately 16-17% of the polymer's weight.

Next, start heating the two containers using a hairdryer. The melting temperature should be at least 120 degrees, so it is better to use industrial models to speed up the process. To understand if the temperature regime is sufficient, pay attention to the state of the polymer - it should be liquid and slightly steaming. If smoke and a too sharp smell appear, the raw material is already overheated. Heating should last about 30-40 minutes. After that, the material needs to be cooled to about 60 degrees.

Heating is necessary to evaporate moisture from the polymer. At 60 degrees, the material remains liquid, but the risk of burns when working with it is reduced.

**The temperature of the hardener must be constantly maintained with a hairdryer, but avoid overheating!**

Then mix the ingredients together. Note, you need to pour the fully melted hardener into the polymer, not vice versa. Do this slowly, constantly stirring the solution. For this, you will need a wooden stick. You have a maximum of 10 minutes to complete the process, but do not rush excessively to prevent the mass from foaming, which would negatively affect the quality of the future product.

After obtaining a homogeneous mass, let it stand for a few minutes. This is necessary for excess bubbles to escape from the solution. Then heat the remaining molds to about 80 degrees and pour the mixture into them. After 30 minutes, start the heating process with a hairdryer to temperature indicators of 100 degrees. The future parts should remain heated for 2 to 6 hours. The longer, the better! Then they must be cooled to a comfortable 40 degrees, after which they can be removed.

Operation is allowed to start in a day, but experts recommend waiting a week. During this time, polyurethane products should be kept warm. In this case, even parts with bubbles inside will be as strong as possible and retain elasticity.

#### How to work with polyurethane?

- We recommend choosing a separate room for the production of polyurethane products (this can be a garage or a utility room);
- You can purchase and install a powerful exhaust to quickly remove all unpleasant chemical odors;
- If you plan to frequently engage in the production of parts and polymer items, we recommend purchasing a mixer with a vacuum-type receiver. This will make it easier to mix the ingredients together.