Zinsser Bullseye 1-2-3 2.5lt

Zinsser Bullseye 1-2-3 2.5 Litre is a versatile, water-based primer, sealer and stain blocker designed to prepare a wide range of interior and exterior surfaces for painting. It offers excellent adhesion, seals porous substrates, blocks common stains and helps promote long-lasting topcoat performance — making it a trusted choice for both professional decorators and DIY users.

Key Features

• Pack Size: 2.5 Litre

• Primer Type: Water-based multi-surface primer and sealer

• Finish: Matt undercoat base

• Application: Brush, roller or airless spray

• Coverage: Approx. 10 m² per litre (may vary with surface texture)

• Drying Time: Touch dry ~30–35 minutes; recoat ~1 hour

• Odour & Clean-Up: Low odour, easy water clean-up

• Tintable: Available in white and can be tinted toward mid-tone colours

Performance & Benefits

Universal Primer & Adhesion Promoter
Zinsser Bullseye 1-2-3 bonds effectively to porous and hard-to-stick surfaces — including bare plaster, plasterboard, wood, metal, PVC, fibreglass and previously painted finishes — often without the need for sanding.

Seals & Blocks Stains
The formula seals porous substrates and blocks common surface stains such as grease, tannin bleed, water marks and rust stains, helping to prevent bleed-through that can mar topcoats.

Rust Inhibition
When applied over clean ferrous metal, it provides a rust-inhibitive primer layer that helps resist flash rusting prior to decorating.

Mould & Mildew Resistance
Contains agents that help protect the dried primer film against fungal degradation in damp environments such as bathrooms and kitchens.

Interior & Exterior Use
Suitable for interior walls, ceilings, trim and woodwork as well as many exterior applications including brick, stone, render and metal.

Recommended Applications

Ideal for priming before topcoating on:

• Internal plaster, plasterboard and skimmed walls

• Wood doors, trims and joinery

• Iron railings, metal frames and steel panels

• PVC and uPVC cladding

• Exterior masonry, brickwork and rendered surfaces

• Previously painted surfaces needing improved adhesion

Surface Preparation & Application

1. Prepare Surface: Remove dirt, grease, loose material or contaminants; ensure surfaces are clean and dry.

2. Stir Thoroughly: Mix well before and during application.

3. Apply: Use a brush, roller or spray for even coverage.

4. Dry: Allow approx. 30–35 minutes to touch dry.

5. Recoat: Ready for topcoat in as little as 1 hour under normal conditions.

6. Clean Up: Clean tools with soap and water.

Technical Specification (Typical)

• Base: Water-based styrenated acrylic

• Colour: White (tintable)

• Volume: 2.5 Litre

• Coverage: ~10 m²/Litre depending on substrate

• Dry Time: Touch dry ~30–35 min; Recoat ~1 hour

• Application: Brush, Roller, Airless Spray

• Use: Multi-surface primer & sealer

Why Choose Zinsser Bullseye 1-2-3 2.5 Litre?

Zinsser Bullseye 1-2-3 2.5 Litre is a highly adaptable primer and sealer that simplifies surface preparation across a broad range of substrates. With excellent adhesion, stain-blocking ability, rust resistance and suitability for both interior and exterior use, it helps ensure a uniform base that enhances topcoat adhesion and finish durability — making it ideal for renovation and new-build decorating projects.