Product Details

Nitoflor Hardtop Standard

Non-metallic, Monolithic Surface Hardening Compound for Fresh Concrete Floors

Product Description

Nitoflor Hardtop Standard is a quality-controlled, factory-blended powder, ready to use on site. It contains specially selected quartz-silica aggregates, chosen for their exceptional abrasion and wear resistance, as well as optimal shape and size. Combined with high-performance workability admixtures, this ensures the material is easy to trowel into fresh, wet concrete.

Upon curing, Nitoflor Hardtop Standard forms a dense, non-porous surface that is extremely hardwearing and abrasion-resistant. Its monolithic curing eliminates common issues associated with thin granolithic screeds, such as shrinkage and cracking. Being non-metallic, it provides a non-slip surface that will never rust or disintegrate.

Uses

Nitoflor Hardtop Standard provides a highly abrasion-resistant surface through the dry shake-on method, ensuring a monolithic bond with the base concrete. It is ideal for all industrial areas subject to heavy traffic, including:

• Loading bays

• Trucking lanes

• Car parks

• Workshops and machine shops

• Ramps and spillways

Advantages

• Supplied ready to use, no additives required

• Non-metallic – does not rust or stain

• Hard, abrasion-resistant surface

• Forms a monolithic bond with base concrete

• Easy and economical to apply

Specification Clause

All concrete floors shall be surfaced or broadcast with Nitoflor Hardtop Standard, a non-metallic monolithic floor hardening compound containing rust-free, hardwearing aggregates. Aggregates shall have a Moh’s hardness of 7–8.

Compressive Strength:

• Minimum 64 N/mm² at 7 days

• Minimum 75 N/mm² at 28 days (as per ASTM C109)

Application Instructions

Base Concrete:

• Minimum cement content: 300 kg/m³

• Concrete should minimize segregation and bleeding. A wet “sheen” on the surface is ideal for the first application.

• Lay and compact concrete following standard best practices, ensuring accurate profile and full compaction, especially at bay edges and corners.

Application Rates:

Abrasion Resistance:
Tested as per ASTM C779 (Revolving Disk Method) to measure depth of wear in mm.

Curing:
Proper curing is essential. Recommended methods include:

• Concore S curing membrane (most efficient)

• Alternative approved methods such as polythene sheeting or water ponding for indoor applications

Ready to Use:
Nitoflor Hardtop Standard is supplied ready to use. Do not add cement or aggregates.

Coloured Floors:
For coloured floors, a job site trial is strongly recommended.

Surface Treatments:
Penetration-type treatments are recommended for low porosity and dust-proof properties.

Packaging & Storage

• Supplied in sealed 25 kg HDPE bags

• Shelf life: At least 12 months in original undamaged packaging under normal warehouse conditions

• Available colours: Green & Grey

Technical Support: Available on request