Can Polyurethane Be Used On All Exterior Paint?


Polyurethane can be oil- or water-based, and you can use either kind over latex paint; however, oil-based polyurethane tends to yellow as it ages, whereas water-based varieties stay transparent.


Varathane is a water-based polyurethane sealer that adds shine to wood and latex-painted surfaces. You can apply Varathane to any surface containing interior and exterior latex paint, including walls, tables, chairs and workbenches, once the paint is dry.

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Frequently Asked Questions

What is the best polyurethane to use over paint?

Oil-based polyurethane is a stronger finish than water-based and can hold up to heat better. However, oil-based will add a slight amber/yellow hue to the surface which can change the look of your paint beneath it. Water-based poly dries clear and will not change the appearance of your paint color.

What do you need to know about urethane paint?

Hunker may earn compensation through affiliate links in this story. Urethane paint is paint created by mixing pigment with polyurethanes, which act as the binder to hold the pigment molecules together. Many brands of urethane paint are available to consumers today.

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