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You don't.
Polyurethane is a carbamate-based polymer. Water has essentially nothing to do with it. You make it by reacting compounds with isocyanate groups with compounds with alcohol groups. Including water can mess up the reaction, since water reacts with isocyanates. Sometimes this is desirable in small quantities to produce a polyurethane foam... the carbon dioxide serves as an in situ blowing agent. Freon-like materials are also sometimes used for this purpose, since it has the advantage of not using up some of the isocyanate starting material.
What else can I help you with?
Does Japan dryer work with polyurethane?
Yes, Japan dryer is compatible with polyurethane coatings. It is commonly used to accelerate the drying process of various types of coatings, including polyurethane, by speeding up the evaporation of solvents in the coating.
Is polyurethane renewable?
Polyurethane can be recycled.
What is PU thinner?
PU thinner is a type of solvent used to dilute and clean up polyurethane-based products, such as paints, coatings, and adhesives. It helps to adjust the viscosity of the products for better application and can also be used for cleaning tools and surfaces that have been in contact with polyurethane.
If you painted on a stainless steel mug with acrylic paints what would be a safe protective coating to use?
A clear epoxy resin or polyurethane sealant would be a safe and durable option to protect the acrylic paint on a stainless steel mug. Make sure to follow the manufacturer's instructions for proper application and curing to ensure a long-lasting finish.
How is a life jacket made from petroleum?
Life jackets are made by a petroleum byproduct, that is mixed with acids and other alcohols. The product from it, Polyurethane. Polyurethane is heat, shock, scratch, and tear resistant. The foam made from it is what allows life jackets to float.
Can water-based polyurethane be applied over oil-based polyurethane?
Yes, water-based polyurethane can be applied over oil-based polyurethane after proper preparation and sanding.
Can I use a water-based polyurethane over an oil-based stain?
Yes, you can use a water-based polyurethane over an oil-based stain. Make sure the stain is fully dried before applying the polyurethane for best results.
Can I use water-based polyurethane over oil-based stain?
Yes, you can use water-based polyurethane over oil-based stain. Make sure the stain is fully dried before applying the polyurethane for best results.
Can I use oil-based polyurethane over water-based stain?
Yes, you can use oil-based polyurethane over water-based stain. Make sure the stain is completely dry before applying the polyurethane for best results.
Can you apply Minwax water-based polyurethane over oil-based stain?
Yes, you can apply Minwax water-based polyurethane over oil-based stain. Make sure the stain is fully dried before applying the polyurethane for best results.
Can you use a water-based polyurethane over an oil stain?
Yes, you can use a water-based polyurethane over an oil stain. Make sure the stain is fully dried before applying the polyurethane for best results.
Is the polyurethane you are using oil-based or water-based?
The polyurethane being used is either oil-based or water-based.
Can you thin water-based polyurethane for application?
Yes, water-based polyurethane can be thinned for application by adding water.
What are the differences between applying water-based polyurethane over oil-based polyurethane?
When applying water-based polyurethane over oil-based polyurethane, the main differences lie in the drying time, odor, and color. Water-based polyurethane dries faster, has a milder odor, and may not yellow as much over time compared to oil-based polyurethane.
Can you apply oil-based polyurethane over water-based polyurethane?
No, it is not recommended to apply oil-based polyurethane over water-based polyurethane as they are not compatible and may not adhere properly. It is best to stick with the same type of polyurethane for a consistent and durable finish.
Can I apply oil-based polyurethane over water-based polyurethane?
No, it is not recommended to apply oil-based polyurethane over water-based polyurethane as they are not compatible and may not adhere properly. It is best to stick with the same type of polyurethane for a consistent and durable finish.
How can I determine whether polyurethane is oil-based or water-based?
To determine if polyurethane is oil-based or water-based, check the label or product information. Oil-based polyurethane contains mineral spirits or other solvents, while water-based polyurethane contains water as the primary solvent. You can also test a small amount on a surface to see how it dries - oil-based polyurethane will have a longer drying time and a stronger odor compared to water-based polyurethane.
