BIOKIL Acrylic Wood Primer – Water-Based Interior Wood Primer & Undercoat (5L, 20L)

Biokil Acrylic Wood Primer – Water-Based Interior Wood Primer & Undercoat (5L, 20L & 1000L)

Biokil Acrylic Wood Primer is a professional-quality water-based primer and undercoat developed for interior timber surfaces including wood, MDF, hardboard, and other engineered wood products. Designed to provide excellent opacity, fast drying times, and outstanding adhesion, it creates the perfect base for subsequent decorative water-based coatings.

The advanced acrylic formulation delivers smooth application, excellent flow characteristics, and strong block resistance once dry. Its low odour, quick-drying properties make it ideal for manufacturing environments, joinery workshops, furniture production, and interior decorating projects where speed and finish quality are essential.

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Key Features & Benefits

• Water-based formulation – low odour and easy to use
• Primer and undercoat in one – simplifies the coating process
• Excellent opacity – high coverage in a single coat
• Fast drying – touch dry in approximately 20 minutes
• Quick overcoating – ready for water-based topcoats after 3 hours
• Excellent flow properties – produces a smooth, professional finish
• Foam resistant – ideal for machine application
• Block resistant when dry – reduces sticking between coated surfaces
• Low odour – suitable for interior environments
• Compatible with infra-red force drying

Typical Applications

• Interior timber joinery
• Doors and door frames
• Skirting boards and architraves
• MDF furniture components
• Hardboard panels
• Timber mouldings
• Cabinet and furniture manufacturing
• Factory finishing systems

Suitable Substrates

• Softwood
• Hardwood
• MDF
• Hardboard
• Engineered timber products

How It Works

The acrylic formulation penetrates and seals timber surfaces while providing an even, high-opacity base coat that promotes adhesion of subsequent decorative finishes.

Its fast-drying technology allows rapid production and overcoating while maintaining excellent surface smoothness and appearance. :contentReference[oaicite:0]{index=0}

Surface Preparation

• Ensure surfaces are clean, dry, and free from dust, grease, and contamination
• Remove loose coatings and defective finishes
• Sand smooth where necessary
• Repair defects prior to priming
• Ensure timber moisture content is suitable before application

Application Instructions

• Apply when temperatures are above 5°C
• Relative humidity should be below 80%
• Apply using automatic brush coaters, vacuum coaters, brushes, or spray equipment
• Apply evenly to achieve full substrate coverage
• Allow sufficient drying before overcoating

Knots & Resinous Timber

Unlike traditional oil-based primers, Biokil Acrylic Wood Primer is largely unaffected by resinous knots once fully dry.

For heavily knotted timber, spot-prime knots with Biokil Acrylic Wood Primer before full application. Where complete resin suppression is required, use a traditional shellac knotting solution before priming.

Coverage Guide

Application	Coverage
Smooth Timber Surfaces	10–12m² per litre
Porous Surfaces	Coverage may reduce depending on absorbency

Drying Times

Stage	Time at 20°C
Touch Dry	Approximately 20 Minutes
Firm Dry	2–3 Hours
Overcoating	Approximately 3 Hours

Technical Specifications

Feature	Specification
Product Type	Water-Based Wood Primer & Undercoat
Colour	White
Application Temperature	Above 5°C
Maximum Humidity	80% RH
Coverage Rate	10–12m² per litre
Touch Dry	20 Minutes
Firm Dry	2–3 Hours
Overcoat Time	3 Hours
Pack Weight	1.5kg per litre
Available Sizes	5L, 20L & 1000L IBC
Shelf Life	12 Months Unopened
Storage Temperature	5°C to 35°C

Cleaning

Clean brushes, spray equipment, vacuum coaters, and all application tools immediately after use with clean water.

Storage & Safety

Store under cover between 5°C and 35°C. Protect from frost and direct weather exposure.

Always read the product label before use and refer to the Material Safety Data Sheet (MSDS) for full health and safety information.

Why Choose Biokil Acrylic Wood Primer?

Biokil Acrylic Wood Primer provides excellent coverage, rapid drying, and outstanding adhesion for interior timber projects. Its water-based technology delivers a low odour, easy-to-use solution suitable for both professional joinery manufacturers and decorators.

With excellent opacity, strong block resistance, and compatibility with modern water-based coating systems, it provides the ideal foundation for achieving a durable, professional-quality finish.