Product Description
Product Overview
Johnstone's Trade Stormshield Flexible Primer Undercoat is a premium quality, solvent-based primer and undercoat in one . It is specially formulated to provide longer-lasting protection for exterior woodwork and suitably primed metal surfaces .
This high-performance basecoat is designed to be used as part of a complete system with Johnstone's Trade Stormshield Flexible Gloss or Satin topcoats . The unique microporous, flexible formulation moves with the natural expansion and contraction of exterior timber, resisting cracking, flaking, and blistering far longer than conventional undercoats . When used as part of a full system, it provides up to 8 years of life expectancy before the first maintenance is required .
Key Features and Benefits
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Combined Primer & Undercoat: Saves time and effort by priming and undercoating in one application .
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Long-Lasting Flexibility: Its advanced flexible formula resists cracking and peeling, ensuring a durable and beautiful finish that lasts .
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Up to 8 Years Protection: Achieves an 8-year life expectancy when used with Stormshield Flexible topcoats .
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Microporous & Breathable: The paint allows the surface to breathe, helping to prevent blistering caused by trapped moisture .
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Excellent Coverage: Provides a smooth, even base with great opacity, helping to mask surface imperfections .
Technical Information
Surface Preparation & Application
For best results, ensure all surfaces are clean, dry, and free from loose or flaking material .
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For Bare Wood: Apply one coat of Johnstone's Trade Universal Primer before using this undercoat .
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For Bare Metal: Prime the surface with an appropriate metal primer first .
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For Previously Painted Surfaces: Rub down with fine waterproof abrasive paper and rinse thoroughly .
Application Steps:
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Stir the product thoroughly before use .
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Apply 1-2 coats evenly by brush or roller .
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Allow to dry for 16-24 hours under normal conditions .
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Finish with 2 coats of Johnstone's Trade Stormshield Flexible Gloss or Satin for up to 8 years of protection .