A sunny day can push the wood surface out of the acceptable range even if the air stays within it. This can cause the stain to dry too quickly for even penetration and leave lap marks. Stained surfaces need to stay within the prescribed range until the stain is fully cured. Night temperatures may stay within the approved range, but the dew point temperature may not.
Dew is as much a concern to curing stain as rain. It can affect drying times, durability, and make the finish peel, flake, and look splotchy, so it is another temperature issue.
For the best results, the wood temperature needs to stay within that range until it is fully cured. If the wood is too warm, the stain can dry too quickly causing uneven absorption, blotchy finish, and poor adhesion resulting in peeling and flaking.
Cool days tend to have lower humidity, so the stain will cure fully, just slower. However, the stain may not fully cure until the wood warms up some. Four days allow for cleaning, drying, and one coat to cure. A second can be applied once the first is dry to touch, often within 4-hours according to some manufacturers. The best time of year generally depends on where the deck is located geographically. In some temperate regions, it is better to stain in the spring before the summer heat or fall winds, or hurricanes.
In much of the U. Some places, like mine, you stain whenever the window of opportunity knocks. Low humidity is better than high temperatures for drying, and shade or cloud better than direct sun. A block of days without precipitation is, however, necessary for the best results.
Days with light or no winds are also better for even curing too. Summer tends to be a high use time for decks, so staining in spring or fall may work better for you. The temperature range for applying deck stain is just as crucial. Although the suggested temperature ranges for applying deck stain gives a lot more room for error, it can still come into play. Applying deck stain when temperatures are too cold can affect the curing process of the stain.
Applying deck stain when temperatures are too hot can cause the stain to evaporate and dry too quickly. The suggested temperature range for applying deck stain is on average degrees Fahrenheit. When deck stain is applied in cooler temperatures, in early spring or late fall, for example, the curing process of the stain can be hindered.
Even if temperatures drop to below-suggested ranges, and especially close to freezing, days after you have applied stain it can still affect it negatively. When deck stain is applied during extremely hot temperatures the stain can dry too quickly before it penetrates the wood properly. Besides the air temperature on extremely hot days, the wood surface can be very hot as well.
You should never apply deck stain on a steamy hot day and especially in full sun. I have Thompson Water Seal. Can I apply in 54 degree weather during mid day and 44 degrees at night? The next day will be 60 with rain coming in during the afternoon. Daytime highs are forecasted at 90 degrees in the next week or so. Deck is in full sun and gets pretty toasty between 10am and 4pm. If I were to stain it at say 5pm after it cools down, would that be enough time for it to cure properly before it heats up the next morning about 17 hours?
Does the deck being in full-sun affect that ideal ambient temperature range degrees for applying the stain? If possible, coat all wooden surfaces, including the end grain. The end grain absorbs moisture, causing the wood fibres to separate. This can lead to problems with the coating. To reduce streaking, apply the stain or paint in the direction of the grain along the entire length each board, one at a time. Let the coat cure for at least 48 hours before walking on it, and wait at least 30 days before washing to allow it to harden fully.
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They are there to help you make informed, objective choices, whatever project you plan to undertake. By continuing to browse this website, you are agreeing to the use of cookies and other tracking technologies to enhance your browsing experience and allow CAA-Quebec to learn more about what interests you so it can improve its products and services. Tips and tricks. What are the ideal weather conditions for staining or painting my deck? How do I prepare the wooden surface?
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