Zinsser Gardz
                              £11.98 (inc. VAT)
                              £9.98 (ex. VAT)
                            
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Zinsser Gardz® is a unique water-based sealer designed to tackle problem interior surfaces. Formulated to penetrate deeply, it dries to a rock-hard, moisture-resistant film that seals, binds and stabilises porous or damaged substrates.
Unlike ordinary primers, Gardz® repairs and reinforces fragile surfaces such as torn drywall paper, joint compound, calcimine coatings and chalky finishes. It also seals in wallpaper adhesive residue, preventing future bubbling or lifting.
Fast-drying, low odour and water-based, Gardz® is the professional choice for preparing walls and ceilings before painting or papering, giving you a reliable base for a flawless finish.
Why Choose Zinsser Gardz?
✅ Deep-penetrating sealer – Reinforces damaged and porous surfaces
✅ Prevents future problems – Stops paint from flaking, blistering or soaking in unevenly
✅ Water-resistant finish – Ideal base for paint, wallpaper, or decorative finishes
✅ Easy to apply & clean – Water-based formula with soap and water clean-up
✅ Trusted for interior use – Perfect for renovation, repairs, and prep work
Surface Preparation
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Ensure surfaces are clean, dry, sound and free of dust, grease or contamination.
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Remove loose or flaking material by scraping or sanding.
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When sanding pre-1960s paint, take precautions against lead dust.
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Fill cracks and defects with a suitable filler and sand flush before applying.
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Do not apply over actively damp or wet surfaces.
 
Technical Data
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Type: Water-based clear sealer
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Finish: Dries clear (non-tintable)
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Sizes Available: 500ml, 1L, 2.5L, 5L
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Coverage: 5–10m² per litre depending on porosity
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Touch Dry: 30 minutes
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Recoatable: 3 hours
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Full Cure: 3 days
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Application Methods: Brush, roller or airless sprayer
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Features:
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Repairs torn drywall paper
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Binds chalky or powdery surfaces
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Seals in wallpaper adhesive
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Hardens soft or porous finishes
 
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Environment: Interior use only
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Clean Up: Soap and water
 
Directions for Use
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Stir well before use – do not thin.
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Apply liberally using a brush, roller or sprayer, ensuring full penetration of porous areas.
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Allow 30 minutes to dry before assessing whether a second coat is needed on highly porous substrates.
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Recoat or apply wall coverings after 3 hours.
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Wash tools immediately with warm soapy water.
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Store between 5°C and 25°C, protected from frost.
 
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