Objectives

The primary objective is to appoint a qualified supplier to supply and professionally install a high-performance epoxy flooring system across a 500m² area at a biological products facility. The installation must meet stringent hygiene, durability, and chemical resistance standards required for vaccine and biological production environments.

Scope of Work

The scope encompasses end-to-end delivery and installation of a seamless epoxy floor system. This includes comprehensive surface preparation, application of a solvent-free penetrative primer, a self-leveling body/screed coat, a 100% solids pure resin topcoat, and integrated wall-to-floor coving. The contractor must submit product specifications, technical data sheets, and a minimum of three verifiable reference letters for comparable projects completed within the last 36 months. A mandatory site briefing is required prior to bid submission.

Technical Requirements

• System Type: Thick, solid epoxy flooring only. Thin coatings or paints are strictly prohibited due to chipping and particle shedding risks.
• Chemical Resistance: Must withstand repeated exposure to vaporized hydrogen peroxide (VHP), high-strength chlorine-based disinfectants exceeding 1,000 ppm, and other harsh sterilization agents.
• Surface Preparation: Mechanical blasting to achieve a Concrete Surface Profile (CSP) of 2–3, followed by HEPA-filtered vacuuming, moisture mitigation, and structural crack patching.
• Application Standards: Elimination of sharp corners through integrated coving (50–100mm radius) to prevent microbial harborage. The final topcoat must be completely smooth without abrasive or non-slip aggregates.
• Compliance & Registration: Valid Construction Industry Development Board (CIDB) registration of minimum Grade 01 GB or higher. Submission of SBD4 disclosure forms and proof of BBBEE status.
• Evaluation Model: 80/20 weighted scoring (Price/Preference). Preference points awarded for ≥51% black ownership, ≥30% women ownership, and verified disability status.

Skills and Experience Requirements

• Demonstrated expertise in industrial epoxy flooring installation, particularly within controlled-environment or pharmaceutical-grade facilities.
• Proficiency in critical surface preparation techniques, including concrete profiling, moisture testing, and HEPA-compliant dust removal.
• Skilled application of solvent-free primers, self-leveling epoxy screeds, and 100% solids pure resin topcoats using calibrated trowels, squeegees, and pin rakes.
• Experience fabricating and installing seamless wall-to-floor coving systems to eliminate microbial traps.
• Understanding of cleanroom standards, microbial control protocols, and chemical compatibility for biological manufacturing.
• Ability to manage material logistics, curing timelines, and strict site safety/PPE compliance.
• Valid CIDB accreditation and a proven track record evidenced by recent, traceable client references.

Explanation of Unusual or Complicated Terms

• Concrete Surface Profile (CSP): A standardized industry measure of concrete roughness achieved through mechanical abrasion or blasting. A CSP of 2–3 ensures optimal mechanical keying and adhesion for heavy-duty epoxy systems.
• VHP (Vaporized Hydrogen Peroxide): A gaseous sterilization method widely used in biological and pharmaceutical facilities. The flooring must resist degradation, discoloration, or delamination from repeated VHP cycles.
• 100% Solids Epoxy: A high-performance coating containing zero volatile organic compounds (VOCs). Unlike solvent-based alternatives, it cures entirely without evaporating liquids, resulting in maximum film thickness, superior chemical resistance, and minimal environmental off-gassing.
• CIDB Grading 01 GB: A South African construction industry classification denoting eligibility for general building works up to a specified monetary threshold. It verifies the contractor’s financial capacity, equipment, and workforce to execute civil and finishing works safely and compliantly.