Fosroc Primers: Technical Details, Specifications, and Features

Fosroc offers a specialized range of primer products designed as foundation products for optimal performance in construction applications. These primers serve critical roles in flooring systems, waterproofing applications, and concrete repair projects.

Product Range Overview

Fosroc's primer range includes several key products, each engineered for specific applications and performance requirements:

Nitobond SBR

Application: Mortar additive and bonding agent

Key Features:

• Water resistant polymer formulation
• Improves strength and adhesion in repair mortars
• Enhances bonding between old and new concrete surfaces
• Single-component, easy-to-use formulation

Performance Benefits:

• Superior adhesion properties
• Enhanced durability of repair systems
• Improved workability of mortar mixtures

Nitobond AR

Application: Curing membrane

Key Features:

• Single component polymer emulsion
• Applied as a curing membrane over fresh concrete
• Provides moisture retention during curing
• Supports optimal curing conditions

Performance Benefits:

• Maintains moisture content in concrete
• Reduces cracking during the curing phase
• Protects concrete from environmental exposure

Nitoprime 330

Application: Floor topping primer

Key Features:

• Designed for diluted application
• Achieves optimal bonding between substrate and floor topping
• Applied as a preparatory layer in flooring systems
• Polymer-based formulation

Application Method:

• Diluted application approach for consistent coverage
• Ensures proper adhesion to the substrate
• Creates optimal surface preparation for floor toppers

Performance Benefits:

• Superior adhesion of floor topping systems
• Consistent bonding performance across varied substrates
• Part of complete flooring system solutions

Nitoprime 320PU

Application: Polyurea primer

Key Features:

• Specifically designed for polyurea membrane applications
• Engineered for compatibility with polyurea waterproofing systems
• Prepares substrate for polyurea coating application
• Single-component formulation

Performance Benefits:

• Enhanced adhesion of polyurea membranes
• Optimal substrate preparation for spray-applied systems
• Compatibility with Polyurea WPE110 and similar systems

Nitoprime Range as Flooring System Component

The Nitoprime Range functions as a critical component within Fosroc's comprehensive industrial flooring solutions. These primers are essential for achieving proper adhesion and performance in HACCP-certified flooring systems.

Role in Flooring Systems

System Integration:

• Applied as the primer layer in multi-component flooring systems
• Prepares substrate for high-build coatings and floor toppings
• Works in conjunction with Nitoflor range coatings
• Supports HACCP certification requirements

Application Sequence:

1. Substrate preparation and cleaning
2. Primer application (Nitoprime range)
3. High-build coating application (Nitoflor range)
4. Floor topping installation (Cemtop range)

Performance in Food Processing Facilities:

• HACCP certified flooring solutions
• Meets Australian and New Zealand Food Standards Code requirements
• Ensures hygiene and durability in demanding food facility environments
• Chemical resistant properties for cleaning protocols

Technical Specifications Summary

Product	Type	Application	Key Features	Gap/Thickness
Nitobond SBR	Polymer emulsion	Mortar additive	Water resistant, improved adhesion	Variable with mortar
Nitobond AR	Polymer emulsion	Curing membrane	Single component, moisture retention	Applied as membrane
Nitoprime 330	Floor primer	Floor topping base	Diluted application, optimal bonding	Applied as thin layer
Nitoprime 320PU	Polyurea primer	Polyurea substrate prep	Polyurea compatible, single component	Applied as thin layer

Integration with Fosroc Systems

Concrete Repair Systems

Primers support optimal performance in concrete repair applications:

• Nitobond SBR enhances adhesion of Renderoc repair mortars
• Nitobond AR supports curing of repair systems
• Foundation for durable, long-lasting repairs

Waterproofing Systems

Primers prepare substrates for waterproofing membranes:

• Nitoprime 320PU optimizes polyurea membrane adhesion
• Works with Polyurea WPE110 and Polyurea WHE110 systems
• Ensures comprehensive waterproofing performance

Industrial Flooring Solutions

Primers are essential flooring system components:

• Nitoprime range provides substrate preparation
• Part of HACCP certified flooring systems
• Works with Cemtop and Nitoflor products
• Supports food processing facility requirements

Safety and Compliance

Fosroc primers maintain the company's commitment to worker safety:

• RCS Content: Less than 0.1% in cement-based formulations
• Classification: Non-hazardous per Australian Inventory of Industrial Chemicals
• Recommended Practice: Dust masks recommended for powder handling
• Compliance: Meets Australian and New Zealand standards

Technical Support Services

Fosroc provides comprehensive support for primer selection and application:

• Specification Support: National Specifications Team guidance
• Product Recommendations: Tailored advice for specific applications
• On-Site Training: Hands-on application training
• Account Manager Support: Over 70 account managers across Australia

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References

• [1] Fosroc Australia Business Profile and Product Catalogue 2024