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🇳🇿 Supercrete New Zealand — Authorised Applicator Sri Lanka

Bonding Agents

Our sustainable bonding agents are engineered to enhance adhesion for both structural and non-structural applications across diverse construction needs. We offer a comprehensive range based on acrylic, SBR and epoxy resins, ensuring compatibility with various substrates and performance demands. From improving bond strength to increasing durability, our solutions deliver reliable performance in every application.

Showing 2 products in Bonding Agents
🇳🇿 All products: Supercrete New Zealand
Two Bonding Technologies
Acrylic vs SBR Latex —
Understanding the difference and when to use each
🔵
Acrylic Co-Polymer
Modified Acrylic Bonding Agent

Versatile acrylic liquid co-polymer that serves three functions in one — bonding agent, curing aid and waterproofing admixture. Improves adhesion, reduces permeability and retains moisture for better hydration of fresh concrete. The all-rounder for general construction bonding needs.

Product: StrucoBond GP
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SBR Latex
Styrene Butadiene Rubber Latex

Rubber-based latex that dramatically improves the physical properties of cementitious mixes — particularly flexibility, impact resistance and adhesion. The preferred choice for repair mortars, screeds and overlays where the improved flexibility of rubber is needed alongside enhanced bonding.

Product: StrucoBond SBR

StrucoBond Bonding Agent Range

2 Products
SUPER-CRETE™ StrucoBond GP
Multi-Function
Supercrete · Acrylic Bonding Agent & Curing Aid
SUPER-CRETE™ StrucoBond GP

1-component modified acrylic liquid co-polymer for use as a curing agent, bonding agent and admixture in cementitious mixes.

1-ComponentAcrylicBonding AgentCuring AidAdmixture
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SUPER-CRETE™ StrucoBond SBR
SBR Latex
Supercrete · SBR Latex Bonding Agent
SUPER-CRETE™ StrucoBond SBR

1-component styrene butadiene rubber latex bonding agent designed to improve the physical properties of cementitious mixes.

1-ComponentSBR LatexBonding AgentConcrete ModifierFlexibility
View Product Details →
Why It Matters

Why Bonding Agents Are Critical
in Concrete Repair & Construction

The single most common cause of concrete repair failure is not the repair mortar — it is inadequate adhesion between the repair mortar and the existing concrete substrate. A repair mortar that debonds from the parent concrete is structurally useless and must be removed and redone at significant cost.

Old, hardened concrete has a smooth, carbonated surface that does not bond naturally to new cementitious materials. Without a bonding agent — or with a bonding agent that has been allowed to dry before the mortar is applied — the repair will fail at the interface between old and new concrete.

StrucoBond bonding agents eliminate this risk by chemically enhancing the adhesion between old and new concrete surfaces — ensuring the repair or overlay performs as a monolithic structural unit rather than two separate elements.

Without Bonding Agent
  • Repair mortar sits on smooth carbonated surface
  • Mechanical bond only — weak at the interface
  • Delamination risk under thermal cycling
  • Repair can sound hollow and eventually detach
  • Repeat repair required — additional cost
With StrucoBond Bonding Agent
  • Chemical bond formed at old-new concrete interface
  • Tensile bond strength dramatically increased
  • Monolithic behaviour — repair acts as single unit
  • Long-term repair durability and performance
  • Compliant with BS EN 1504 repair principles
How It Works

How Bonding Agents Are Applied
in Concrete Repair

1
Prepare Substrate
Existing concrete is mechanically prepared — scabbled, grit blasted or wire brushed to remove laitance, carbonation and contamination to expose clean, sound concrete
2
Pre-Wet Surface
The prepared substrate is wetted with clean water and brought to a saturated surface dry (SSD) condition — preventing the dry concrete from absorbing water from the bonding slurry
3
Apply Bonding Slurry
StrucoBond is mixed with cement to form a slurry and vigorously scrubbed into the prepared surface with a stiff brush — working it into every pore and texture of the concrete
4
Apply Repair While Tacky
The repair mortar or new concrete is applied while the bonding slurry is still wet and tacky — never allow it to dry before applying the fresh material above
⚠️ Critical rule: The bonding slurry must never be allowed to dry before the fresh repair material is applied — a dry bonding coat acts as a bond breaker rather than a bonding agent. Always apply the repair mortar while the slurry is still fresh and tacky.
StrucoBond GP — Three Uses

StrucoBond GP — Three Functions
in One Product

StrucoBond GP is classified as a multi-function product — it can be used in three distinct ways on the same construction site:

1
Bonding Agent
Mixed with cement to form a slurry and applied to prepared concrete before new repair mortar, screed or concrete overlay — dramatically improving adhesion at the old-to-new interface
StrucoBond GP mixed with OPC
2
Curing Aid
Applied undiluted or diluted to the surface of fresh concrete or mortar — forms a temporary moisture-retaining film that keeps the surface hydrated during the critical early curing period
StrucoBond GP applied neat to fresh surface
3
Waterproofing Admixture
Added to concrete, mortar or grout mixes in place of part of the gauging water — reduces permeability and improves the waterproofing performance of the hardened cementitious material
StrucoBond GP added to mix water
Applications

Where StrucoBond Bonding
Agents Are Used

🩹
Concrete Repair Bonding
Applied as bonding slurry before all concrete repair mortar applications — the essential first step in any structural repair
🏗️
New-to-Old Concrete
Bonding between fresh concrete pours and hardened existing concrete — construction joints, topping slabs and composite overlays
🪵
Screed & Floor Overlay
Improving adhesion of floor screeds, self-levelling compounds and overlays to existing concrete base slabs
🧱
Render & Plaster Adhesion
Improving adhesion of render and plaster coats to concrete, masonry and other smooth or difficult substrates
⚗️
Repair Mortar Modifier
Added directly to repair mortars and grouts — improving flexibility, adhesion and durability of the cured material
💧
Waterproofing Admixture
Reducing concrete and mortar permeability when used as a gauging water replacement — simple waterproofing enhancement
🌿
Curing of Fresh Concrete
StrucoBond GP applied to fresh concrete surfaces to retain moisture and improve hydration during early curing — especially in hot, dry conditions
🔲
Tile Bedding Improvement
Added to sand-cement tile bedding mortars — improving adhesion and reducing the risk of tile debonding in wet areas and external applications
🏛️
Heritage & Restoration
Critical component of heritage building repair — ensuring new repair mortars bond securely to aged masonry and concrete without damaging historic fabric
Product Selection Guide

StrucoBond GP vs StrucoBond SBR —
Choosing the Right Bonding Agent

Acrylic Based
StrucoBond GP
Modified Acrylic Co-Polymer
  • Multi-function: bonding + curing + admixture
  • Best for general construction bonding
  • Also used as a curing aid on fresh concrete
  • Waterproofing admixture when added to mixes
  • Most economical general-purpose choice
vs
SBR Latex
StrucoBond SBR
Styrene Butadiene Rubber Latex
  • Rubber-based — higher flexibility in cured mix
  • Better impact and abrasion resistance
  • Preferred for thin-section repair mortars
  • Better for external and exposed repairs
  • Enhanced crack resistance in cured material
💡 Not sure which to choose? Call our certified specialist on +94 777 887 307 — we'll assess your application and recommend the right bonding agent.
Project References

Bonding Agents Used Across
Landmark Projects

StrucoBond bonding agents are a standard component of every concrete repair and overlay project carried out by Hi-Tech Concrete Solutions — ensuring long-term adhesion and durability of all repair works.

View All Projects →
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Individual Product Pages — Coming via CMS

Detailed specification pages for StrucoBond GP and StrucoBond SBR — including full technical data, mixing ratios, application rates and PDF data sheet downloads — will be available once the CMS admin panel is configured.

📞 Contact us for bonding agent advice →
🇳🇿
Supercrete — New Zealand Technology, Proven in Sri Lanka Hi-Tech Concrete Solutions is the exclusive authorised applicator of Supercrete New Zealand products in Sri Lanka. StrucoBond bonding agents are used on every concrete repair and overlay project — ensuring the long-term adhesion and performance of all repair works.
🔗 Get Bonding Agent Advice →