Fosroc Nitocote Primer Sealer, 4L, Protective Resin Coating System for Floors & Structures

It is suitable for porous substrates such as precast concrete, masonry, and steel surfaces. It penetrates the material and creates a durable seal to improve protection and adhesion for future coatings.

It is a single-component polyurethane sealer that can be applied directly to the substrate without mixing.

The product features 100% solids, solvent-free formulation with low VOC, water-repellent impermeability, UV resistance, abrasion resistance, and fast drying. It provides a uniform matte finish and is designed to prepare surfaces for subsequent coatings.

Apply a uniform coat using a brush, roller, or spray. Ensure the surface is clean, dry, and sound before application. Use a single coat for sealing; avoid ponding. The sealer dries to the touch in about 1–2 hours under typical conditions, with full cure dependent on environmental factors.

Touch dry time is typically 1–2 hours under normal conditions. Full cure will depend on ambient temperature, humidity, and airflow, and the surface should be allowed to cure before subjecting it to service or applying a subsequent coating.

The formula is solvent-free and designed for lower VOCs. Use in well-ventilated areas and wear appropriate PPE such as gloves and eye protection. Avoid skin and eye contact, and follow standard chemical handling practices when storing and using the product.

Yes, it is designed to prime and seal porous substrates to improve adhesion for subsequent coatings. It is best used as a primer/sealer layer, and compatibility with specific topcoats should be verified for your project.

The sealer provides long-term protection by reducing water ingress, improving durability, and slowing environmental deterioration. It also creates a stable, matte finish surface that accepts future coatings more consistently, helping to extend the life of the substrate.

Both are Fosroc primers/sealers designed for porous substrates and provide sealing and adhesion preparation. The NB variant is another formulation in the Nitocote family; select the one that best matches your substrate and topcoat compatibility. For direct comparison, see Fosroc NB Primer Sealer options on Fepy.

Sika offers priming/sealing products for porous substrates that deliver similar adhesion and protection. The exact performance will depend on substrate type, environmental conditions, and topcoat compatibility. If you’re considering a Sika option, review its technical data to ensure it meets your project requirements. Compare on Fepy using available Sika primer products.

You can explore related primer/sealer options on Fepy to compare formulation and size variants, such as size variants of Fosroc Nitocote primers or compatible primers from other brands available on Fepy. Use the site navigation or search to locate comparable products and sizes for side-by-side assessment.