Impermax PU Primer 4kg

Professional Polyurethane Primer for Non-Porous Surfaces

Impermax PU Primer 4kg is a high-performance polyurethane-based primer specifically designed to improve adhesion between smooth, non-porous surfaces and Impermax waterproofing membranes. Ideal for koi ponds, water features, reservoirs, aquaculture systems and waterproofing projects, this specialist primer creates a strong bond on difficult substrates such as tiles, ceramics, metal, aluminium, steel, fibreglass and glass.

When used as part of the Impermax waterproofing system, PU Primer helps ensure maximum membrane adhesion, long-term durability and a professional finish. It is especially recommended where surfaces are extremely smooth and offer limited natural key for waterproof coatings.

Key Benefits

✅ Improves adhesion on non-porous surfaces

✅ Ideal for ceramics, tiles, aluminium, steel and glass

✅ Professional-grade polyurethane formulation

✅ Quick and easy application

✅ Essential primer for Impermax waterproofing systems

✅ Suitable for ponds, water features and hydraulic structures

✅ Helps maximise waterproof membrane lifespan

✅ Economical coverage rate of approximately 20m² per 4kg

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Why Choose Impermax PU Primer?

Many waterproofing failures occur due to poor adhesion between coatings and smooth substrates. Impermax PU Primer has been developed specifically to address this issue by creating a superior bonding layer between the surface and the Impermax membrane.

For koi pond builders, aquatic professionals and DIY enthusiasts, using the correct primer is a vital step in achieving a durable waterproof finish that stands the test of time.

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Recommended Applications

• Koi ponds
• Garden ponds
• Aquaculture systems
• Concrete structures
• Ceramic and tiled surfaces
• Metal tanks and containers
• Fibreglass surfaces
• Water features and fountains
• Waterproofing projects

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Coverage Guide

• Approximate coverage: 0.2kg per m²
• 4kg covers approximately 20m²
• Recommended application rate: 200-300g per m²

Coverage may vary depending on surface condition and porosity.

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Technical Specification

• Product: Impermax PU Primer
• Size: 4kg
• Type: Polyurethane Primer
• Application: Surface preparation before waterproofing
• Suitable For: Smooth and non-porous substrates
• Coverage: Approx. 20m² per 4kg
• Colour: Clear/Transparent
• Brand: Impermax

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What’s Included?

• 1 x Impermax PU Primer 4kg

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Frequently Asked Questions

What is Impermax PU Primer used for?

Impermax PU Primer is used to prepare smooth, non-porous surfaces before applying Impermax waterproofing membranes, ensuring maximum adhesion and long-term durability.

Do I need primer before using Impermax?

On smooth surfaces such as tiles, ceramics, aluminium, steel, fibreglass and glass, the use of PU Primer is strongly recommended for optimum adhesion.

Can it be used on koi ponds?

Yes. It is widely used in koi pond construction and refurbishment projects as part of the Impermax waterproofing system.

How much area does 4kg cover?

A 4kg container typically covers approximately 20m², depending on substrate condition and application method.

Can it be applied by brush or roller?

Yes. Impermax PU Primer can be applied using a roller or brush following the manufacturer’s instructions.

Is it suitable for porous surfaces?

Porous surfaces may require an alternative primer depending on substrate condition. Always follow Impermax application guidelines.

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Why Buy From Artisan Aquatics?

At Artisan Aquatics, we stock trusted pond construction and waterproofing products used by koi keepers and aquatic professionals throughout the UK. We offer competitive pricing, expert advice and fast nationwide delivery.

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