Fosroc Renderoc Plug 4.5kg

Fosroc Renderoc Plug is a rapid-setting, cement-based water stopping mortar designed for instant leak sealing in concrete and masonry structures. Supplied as a single-component powder, it only requires the addition of clean water to form a putty-like mix suitable for emergency repairs.

Key Features

• Rapid setting (1-3 minutes) for immediate leak sealing.
• Single-component – just add water
• Excellent adhesion to concrete and masonry substrates.
• Non-shrink, slight expansion to ensure tight sealing
• Low-heat (low-exotherm) formulation, reducing crack risk
• Chloride-free and non-metallic – safe for portable water contact
• Durable and long-lasting repair performance

Recommended Usage :

• Stopping active water leaks in concrete or brick surfaces
• Basements, lift pits, water tanks, manholes, inspection chambers
• Sealing cracks, holes, and pipe penetrations
• Emergency repairs in underground structures and foundations
• Pre-treatment before applying waterproofing systems

Technical Data

• Initial set time: 1–3 minutes

• Compressive strength:

  • ~5 N/mm² @ 2 hours

  • ~32 N/mm² @ 28 days

Packaging

• 4.5kg bag

• Ready-to-use powder formulation