Johnstone's Trade Professional Undercoat - White
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Product Information
Full details
This guide is for anyone looking to achieve a professional finish on their interior and exterior wood and metal projects using Johnstone's Trade Professional Undercoat - White. The undercoat provides an ideal base for your topcoat, ensuring excellent adhesion and a smooth surface. However, it's crucial to ensure proper surface preparation for optimal results.
All features
| Colour | White |
|---|---|
| Brand | Johnstone's |
Extended Product Information
FAQs
Can I use this undercoat on previously painted surfaces?
Yes, but ensure the old paint is sound and properly prepared by cleaning and sanding.
What is the coverage of Johnstone's Trade Professional Undercoat?
Coverage can vary depending on the surface, but typically, you can expect to cover approximately 10-12 square meters per liter.
How long should I wait between coats?
Allow at least 16-24 hours between coats, or as specified on the product label, depending on environmental conditions.
What kind of brush should I use?
A good quality synthetic brush is recommended for best results.
Is this product suitable for exterior use?
Yes, this undercoat is suitable for both interior and exterior use.
How do I clean up after using this product?
Clean brushes and rollers immediately after use with white spirit or a suitable solvent.
Can I use this undercoat on plastic?
This product is primarily designed for wood and metal. While it might adhere to certain plastics, it is not recommended without proper testing and preparation.
Troubleshooting
Undercoat not adhering properly.
Ensure the surface was properly prepared by cleaning and sanding. Also, check for any contaminants on the surface.
Undercoat is not drying evenly.
Make sure the room is well-ventilated and the temperature is within the recommended range. Ensure the coat is applied thinly and evenly.
Topcoat is not adhering well to the undercoat.
Ensure the undercoat is fully dry before applying the topcoat. Also, confirm compatibility between the undercoat and topcoat.
Pros and Cons
Pros
- Provides an excellent base for topcoats, improving adhesion.
- Suitable for a variety of surfaces, including wood and metal.
- Enhances the final appearance of your project with a smooth surface.
- Easy to apply, saving you time during your project.
- Conceals imperfections, giving a professional finish.
Cons
- Requires proper surface preparation for best results.
- Being solvent-based, it requires adequate ventilation during application.
- May require multiple coats for optimal coverage on some surfaces.
Setup, Compatibility & Care
- Surface Preparation: Ensure the surface is clean, dry, and free from loose paint, rust, grease, and other contaminants. Sand the surface lightly to create a key for the undercoat.
- Application: Stir the undercoat thoroughly before use. Apply one or two coats using a brush or roller. Allow each coat to dry completely before applying the topcoat.
- Compatibility: This undercoat is compatible with a wide range of topcoats, including gloss, eggshell, and satin paints. Always check the topcoat manufacturer's instructions for specific compatibility recommendations.
- Care: Store the product in a cool, dry place, away from direct sunlight. Clean brushes and rollers immediately after use with a suitable solvent, such as white spirit.