{"id":10911,"date":"2021-04-08T16:43:12","date_gmt":"2021-04-08T16:43:12","guid":{"rendered":"https:\/\/resin-expert.com\/?p=10911"},"modified":"2023-04-06T14:01:47","modified_gmt":"2023-04-06T14:01:47","slug":"how-long-does-polyurethane-take-to-dry","status":"publish","type":"post","link":"https:\/\/resin-expert.com\/en\/guide\/how-long-does-polyurethane-take-to-dry","title":{"rendered":"How Long Does Polyurethane Take to Dry? Complete Guide"},"content":{"rendered":"

Polyurethane is the perfect finish for wood, and many wooden projects are not complete without a polyurethane coating. Before you start to apply it though, it\u2019s important to understand the polyurethane dry time. There are various different types of polyurethane available – each one with unique properties and curing times. If you are asking the question \u201chow long does polyurethane take to dry?\u201d, then follow our complete guide below for everything you need to know about the drying time for polyurethane, and the different products available.<\/strong><\/p>\n\n

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How Long Does Polyurethane Take to Dry?<\/h2>\n

For water-based polyurethane, the drying time is about 48 hours. For oil-based polyurethane, it takes around 48 hours to dry. After this time, you can walk on the surface or touch it. The complete drying takes much longer.<\/p>\n

This depends on the type of polyurethane you use, how you apply it, and what the external conditions are like. We have outlined all of these factors in detail below.<\/strong><\/span><\/p><\/blockquote>\n

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The Different Types of Polyurethane<\/h2>\n

Before looking into drying times, you will need to understand exactly which product you are working with. There are various different types of polyurethane coatings<\/a> <\/strong>available, each one with a unique drying time. To better understand this, we have outlined some of the main considerations below for polyurethane coatings.<\/p>\n

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Water-Based or Oil-Based Polyurethane<\/h3>\n

First, you will need to understand exactly what polyurethane is and how it is formulated. Polyurethane coatings, or varnish, is made up of polyurethane resins that are dissolved and carried by a liquid solvent. This basically forms a type of plastic in liquid form. When looking at the liquid base of polyurethane, there are two options: water or oil. Both of these produce very different products with unique polyurethane dry times.<\/p>\n

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Water-based polyurethane is a safer and less toxic option. So you need less ventilation if you work with this type of poly. These products contain far fewer amounts of VOCs – that is if they contain any at all. Water-based products do not produce strong odors, and they are safer and easier to work with. Because water evaporates quickly, this type of polyurethane is much faster drying. The polyurethane cure time for water-based products is also lower because these finishes produce much thinner coatings. You will likely have to apply more coatings though – especially because water-based products are typically less durable.<\/p>\n

Oil-based polyurethane is a different story. Unlike water-based products, these finishes are applied slightly thicker. This thickness, combined with the oil composition, makes the polyurethane dry time significantly longer. However, you will achieve a stronger, more durable finish. Oil-based polyurethane can contain high levels of VOCs, and these products can be fairly harmful due to the many chemicals. Oil-based products also release a stronger odor.<\/p>\n

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An important difference between these two types of polyurethane is their clarity. Both types of finish go on clear, but oil-based products will often yellow or darken over time. Water-based polyurethane generally maintains a better level of clarity over the years.<\/strong><\/span><\/p><\/blockquote>\n

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The Type of Sheen<\/h3>\n

Another factor to consider on the drying time for polyurethane is the type of sheen that the product has. Polyurethane varnishes come in three different types of sheen. These are the level of glossiness, or lack of gloss, that the finish offers after it has dried. We have outlined the different sheen types below:<\/p>\n

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