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What is Helske Primer & Sealer

Helske Primer & Sealer (NANO PT) is a penetration primer for stabilization and consolidation of mineral substrates.

Advantages: No dilution High solids content, high yield Low volatile organic matter content, very quick penetration into the substrate structure.

Composition: Solvent-free deep primer based on acrylic dispersion with high solids content (7.08%).

Product certification NF EN 15804 + A1 STN, EN ISO 11890 – 2


When and where is Helske Primer & Sealer (NANO PT) used

Helske Primer & Sealer (NANO PT) is used to reinforce all absorbent substrates. It reduces their absorbency, strengthens them and makes easier the subsequent application of building layers: screeds, adhesives, sealants, plasters and paints. Due to its high solids content it ensures excellent adhesion of other layers. Our Helske Primer & Sealer is used for penetration of absorbent substrates before application of ceramic tiles, screeds, levelling screeds, paints, plasters or thermal insulations.

Application video

The substrate must be solid, clean, dry and free of dust or oil. Before application, we recommend to smooth the surface with a suitable sandpaper. Mix well before use. Apply the undiluted mixture to the intended surface with a brush, roller or spray. Dump surface will negatively affect the adhesive levels of the product.

NANO PT can be applied by brush or roller, and we recommend using standard protective equipment to protect clothing and hands.

This depends on the structure of the substrate. Helske Primer & Sealer penetrates deep into the substrate and strengthens it. It is designed for all types of absorbent mineral surfaces.

With our penetration coating you can be sure that you are using one of the best products on the market. It is ecological, almost odorless, has a high yield rate, high content of dry matter – up to 7.08%, it is not a concentrate, so it doesn’t need to be diluted, it doesn’t contain solvents and has an extremely short drying time. Its price is at the level of other competing products.

Energy saving

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Minimizing of thermal bridges

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Solution against mould

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Regulation of moisture and condensation

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Creating a healthy living environment

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Our products


(Nano PT)

Suction control penetrating Primer for sealing all types of absorbent surfaces, such as block-work, concrete, plasterboard, gypsum plaster and chipboard.  Colourless, solvent-free and odourless, suitable for use with undercoat plaster.


(Nano AM)

Bonding coat to pre-treat smooth and low suction surfaces.  Formulated with aggregate particles that provide a mechanical key for EXTRA GRIP for surfaces such as plaster, tiles, adhesives, mortars and other coatings.  Solvent free, water resistant with high opacity.


(Nano TC)

Joint Finisher is a vinyl based ready mixed Filling & Finishing Compound used by professionals for Filling and Finishing plasterboard joints.  Quick drying and easy to sand makes it ideal for repairing cracks and holes in ceilings, walls and floors.



Indoor thermal skimming plaster solution employing new nanotechnologies.  Energy efficient, up to 35% saving on heating costs and creates a healthy living environment.

About Helske Energy Save

Helske Energy Save manufactures and distributes sustainable building materials with a primary focus on Energy Saving and building methods that enhance a healthy living environment.  Our manufacturing and production process is environmentally driven with the lowest impact on the environment and carbon footprint.  Through continuous innovation and research, we produce unique building materials using nanotechnology for a new generation of building materials, we strive to be pioneers for the environment and enhance people’s quality of living and wellbeing.

We are part of the Helske Group which operates internationally in the construction, healthcare and industrial sectors with 170 staff across 6 countries in Europe.

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