Zinsser Gardz Problem Surface Sealer

The Zinsser Gardz Problem Surface Sealer is a water-based sealer that penetrates deeply and dries to a hard, moisture-resistant film. It seals and stabilises porous and damaged surfaces before decorating.

Seal Torn Plasterboard, Skim Coats and Old Paste

Use it on damaged or new plasterboard, filler and skim coats, plaster, uncoated wallpaper, wallpaper adhesive residue and textured paint. It repairs torn paper on damaged plasterboard, stops bubbles and binds down chalky surfaces.

Explore our primers, sealers and stain covers for the next step.

Dries Clear and Fast

Gardz dries water clear in 30 minutes and can be recoated after 3 hours. Coverage is 5 to 10 m² per litre, and it cleans up with soap and water. Rollers and trays are in our paint supplies range.

Key Features:

• Seals torn plasterboard paper and stops bubbling under new paint
• Locks down old wallpaper adhesive before painting or papering
• Binds chalky, porous surfaces for a sound base
• A water-based, low odour formula that dries completely clear
• Dries fast to a hard, moisture-resistant film on porous walls

Product Details:

• Product Type: Problem surface sealer
• Colour: Dries clear
• Capacity: 1 L, 2.5 L, 5 L
• Coverage: 5–10 m² per litre
• Drying Time: Touch dry 30 minutes; recoat after 3 hours
• Brand: Zinsser

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