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viaduct

NOTE: Confidentiality Assurance, your formulation remains 100% confidential. The recipe, technical ratios, and production method provided through Viaduct Blackbox are exclusive to your manufacturing unit. We do not share, disclose, or resell your customized recipe to any other manufacturer under any circumstances.

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Viaduct Blackbox for GP-2 Grout

Viaduct PU Adhesive is a high-performance polyurethane-based adhesive designed for strong, flexible, and durable bonding across a wide range of construction materials. Formulated with a controlled polymer system, it provides excellent adhesion, moisture resistance, and long-term durability in demanding construction environments.
Just open the Blackbox, mix it with the prescribed raw materials in the recommended ratio, and the complete GP-2 grout formulation is ready for production. No formulation trials. No colour inconsistency. No R&D investment.
This engineered system delivers excellent joint filling, reduced shrinkage, improved adhesion to tile edges, and consistent batch quality—allowing manufacturers to offer a reliable GP-2 grout suitable for internal and external tile joints. Easy to manufacture, simple to control, and trusted in performance, Viaduct Blackbox is the smart way to produce grout with confidence.
NOTE: Confidentiality Assurance, your formulation remains 100% confidential. The recipe, technical ratios, and production method provided through Viaduct Blackbox are exclusive to your manufacturing unit. We do not share, disclose, or resell your customized recipe to any other manufacturer under any circumstances.

Quick Specifications

Packaging Units:

25 KG / 40 KG

Packaging Type:

Powder

Colors:

Grey

Quick Specifications

Packaging Units:

25 KG / 40 KG

Packaging Type:

Powder

Colors:

Grey

Key Features

High Bond Strength

Provides strong adhesion across multiple substrates.

Flexible Bonding Performance

Maintains flexibility after curing, reducing stress and cracking.

Moisture Resistance

Performs reliably in damp and humid conditions.

Excellent Adhesion

Bonds effectively to concrete, metal, wood, and masonry surfaces.

Durable Performance

Provides long-term bonding strength and stability.

Controlled Curing Behaviour

Allows adequate working time for positioning and application.

Stable Shelf Life

Maintains performance over extended storage periods.

Batch-to-Batch Consistency

Manufactured under controlled QC parameters.

Private Label Ready

Supports customised branding and packaging solutions.

Scalable Supply Capability

Suitable for regional distributors and large-volume brands.

Quality-Controlled Manufacturing

Each batch is verified for performance and stability.

Technical Specifications

Detailed technical specifications and performance characteristics of Products

Parameters

Results

Form

Liquid / Paste

Colour

White

Application

Flexible Bonding

Adhesion Strength

High

Flexibility

High

Moisture Resistance

Good

Compatibility

Concrete, Glass, Metal, Wood, Masonry

Shelf Life

Stable

Storage

Cool & Dry Conditions

-

-

-

-

-

-

How to Use Viaduct Blackbox in Manufacturing

Variant Selection

Select the suitable PU adhesive grade based on bonding requirements and application type.

Branding Customisation

Provide brand name, label design, packaging size, and compliance details.

Quality Verification

Each batch undergoes viscosity, curing behaviour, and stability checks.

Filling & Packaging

Product is filled into selected container sizes under controlled conditions.

Batch Documentation

Manufacturing date, batch number, and compliance details are recorded.

Dispatch & Distribution

Products are sealed and shipped as per agreed supply schedule.

Knowledge Base

TDS PDF

Brochure

Frequently Asked Questions

Get answers to common questions about AAC blocks, construction techniques, and project requirements
What is Viaduct Blackbox for GP-2 Grout?

It is a pre-engineered formulation system that enables manufacturers to produce consistent, smooth-finish tile grout without formulation complexity.

Yes, it is suitable for internal and external under normal service conditions.

Yes, the formulation is designed to maintain uniform colour across batches.

No. GP-2 grout is water-resistant, not waterproof.

Do I need special machinery to manufacture GP-2 grout?

No. Standard ribbon or paddle mixers are sufficient.

No. The Blackbox provides a ready-to-produce formulation.

Minor adjustments can be guided while maintaining grout performance.

Does Viaduct provide technical documentation?

Yes. Complete formulation, QC parameters, and production workflow are provided.

Yes. Ongoing support is available for troubleshooting and optimisation.

Minor adjustments can be guided while maintaining grout performance.

How should the Blackbox be stored?

Store in a cool, dry place away from moisture.

Store on pallets in dry, ventilated areas.

Yes. Proper storage is essential to maintain colour and performance.

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Still Have Questions?

Our technical experts are here to help with your specific project requirements and questions.

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Get in Touch

Need support with formulations, manufacturing, or product selection? Contact us and our team will guide you with the right solution.