Description
Johnstone’s Trade Professional Undercoat
???? Full Product Description:
Johnstone’s Trade Professional Undercoat – The Perfect Base for Long-Lasting Gloss Finishes
Johnstone’s Trade Professional Undercoat is a high-performing solvent-based basecoat, specially designed to be used underneath Johnstone’s Professional Gloss. It delivers superb opacity, easy brushing, and excellent obliteration — even over uneven or discoloured surfaces.
With a smooth and dense finish, this undercoat provides the ideal foundation for a durable, high-sheen topcoat. It improves adhesion, enhances colour depth, and ensures long-term performance on both interior and exterior wood and metal.
✅ Key Features:
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Excellent opacity and coverage
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Smooth base for gloss finishes
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Enhances adhesion and durability
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Suitable for interior and exterior use
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Ideal for wood and metal
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Traditional solvent-based formulation
???? Ideal For:
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Interior woodwork: skirtings, doors, trim
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Exterior joinery, soffits, and fascia boards
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Metal surfaces (with appropriate prep)
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Prepping discoloured or patchy areas before glossing
???? Technical Details:
| Property | Value |
|---|---|
| Finish | Flat / low sheen |
| Coverage | Up to 17m² per litre |
| Recoatable Time | 16–24 hours |
| Touch Dry | 4–6 hours |
| Application | Brush or roller |
| Pack Sizes | 1L, 2.5L, 5L |
| VOC Level | High |
| Colour Range | White & tintable to match topcoat |
???? Surface Preparation & Application:
All surfaces must be clean, dry, and free from dust or grease. Sand previously painted surfaces to provide a key. Stir thoroughly before use. Apply 1 coat of Professional Undercoat and allow to dry fully before overcoating with Johnstone’s Professional Gloss.
⚠️ Important Notes:
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Designed specifically for use under Professional Gloss
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Solvent-based; ensure good ventilation
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Longer drying time — plan recoats accordingly
Painting And Decorating Materials
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