Nitobond EP
Two-Component Epoxy Bonding Agent for Concrete Repair and New Concrete Overlay
Authorized Project Distributor — Fosroc India | Space Arc Engineering, Ghaziabad
Product Overview
Nitobond EP is a two-component, solvent-free epoxy resin bonding agent for use as a primer coat between a prepared concrete substrate and a subsequent repair mortar, topping, or overlay. It is specifically formulated for use with the Fosroc Renderoc range of repair mortars — Renderoc S2, HB2, SP40, LA Xtra, and others — and with concrete toppings such as Cemtop and Nitoflor floor systems. Applied by brush or roller to the prepared concrete surface, Nitobond EP cures to form a tenacious adhesive layer that dramatically improves the pull-off bond strength of the repair mortar or overlay above it. The Renderoc repair mortar must be applied while Nitobond EP is still in a tacky green state — too early (before the epoxy has reacted sufficiently) and the mortar floats on uncured epoxy; too late (fully cured) and the epoxy surface is glossy and non-receptive. Nitobond EP is also used to bond new concrete overlays to existing hardened concrete substrates in structural overlay work. Space Arc Engineering distributes Nitobond EP for concrete repair and overlay projects across Delhi NCR, Ghaziabad, and Northern India.
Applications
- Bonding primer for Renderoc repair mortars on prepared concrete substrates
- Bond coat for concrete toppings and floor overlays on hardened concrete
- Adhesive primer for microconcrete casting against existing concrete
- Structural interface bonding agent for composite slab construction
- Primer before epoxy floor coating on concrete substrates
- Adhesive for bonding precast panels to structural concrete
Key Advantages
- High pull-off bond strength — maximises repair mortar adhesion
- Epoxy chemistry provides superior adhesion to clean concrete
- Solvent-free — suitable for enclosed spaces
- Two-component for consistent performance at ambient temperature
- Part of the fully integrated Fosroc Renderoc repair system
- Essential companion to all Renderoc and Nitoflor systems
Technical Data
| Type | Two-component solvent-free epoxy bonding agent |
| Components | Base + hardener (mix ratio varies by product version) |
| Open Time (green state) | ~1–3 hours at 25 degrees C |
| Application | Brush or roller to prepared substrate |
| Coverage | ~4–6 m2/litre per coat |
| Compatible Repair Mortars | Full Renderoc range, Cemtop, Nitoflor systems |
Get a Quote
📞 +91 9999155255
📧 info@space-arc.com
🏢 Space Arc Engineering, Sahibabad, Ghaziabad
Frequently Asked Questions
How do I know when Nitobond EP is in the correct tacky state for repair mortar application?
Nitobond EP should be applied to the substrate and then the repair mortar applied at the correct open time — when the epoxy is sticky to touch but does not transfer to a gloved hand when touched and lightly pulled away. At 25 degrees C, this typically occurs 1 to 3 hours after application. In hot conditions (above 35 degrees C), the open time is shorter. Always test a small area first if working in unusual temperature conditions.
Can Nitobond EP be applied to a wet or damp substrate?
Nitobond EP performs best on a surface dry or just surface-damp substrate. It is not suitable for wet or water-weeping surfaces. If the concrete substrate is wet due to water ingress, the active leak must first be sealed (using Nitofill UR63 or hydraulic cement plug), and then the surface must be allowed to dry to at least surface dry condition before Nitobond EP is applied.
What is the shelf life of unmixed Nitobond EP?
Unmixed Nitobond EP typically has a shelf life of 12 months from the date of manufacture when stored in original sealed containers below 35 degrees C away from direct sunlight. Check the batch date on the container before use. Mixed epoxy has a limited pot life of 30 to 60 minutes at 25 degrees C and must be applied and completed within this time.
Source Nitobond EP for Your Project
Space Arc Engineering is an Authorized Project Distributor for Fosroc India serving Delhi NCR, Ghaziabad, Noida and Uttar Pradesh.
Get Nitobond EP — Two-Component Epoxy Bonding Agent for Concrete Repair and New Concrete Overlay — pricing, TDS & technical help
Space Arc Engineering is an authorized Fosroc distributor & applicator in Delhi NCR & pan-India. Fast quotes, datasheets and on-site support.
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