What is Bitumen Coating?
Bitumen coating is a protective waterproof layer made from bitumen (a viscous, black hydrocarbon material) applied to surfaces to prevent water infiltration, corrosion, and deterioration. It is commonly used in construction for waterproofing and corrosion protection of structural components.
Bitumen is either hot-applied or cold-applied depending on the formulation and application requirements. It can also serve as a primer for membrane adhesion in waterproofing systems.
Importance of Bitumen Coating in Construction
- Waterproofing Protection
Bitumen creates an impermeable barrier that blocks moisture and water penetration into concrete, steel, or masonry structures.
- Corrosion Resistance
When applied on metal surfaces like pipes, tanks, or steel foundations, bitumen forms a rust-proof coating.
- Adhesion for Membranes / Primer
Bitumen primer improves bonding between the substrate and bituminous membranes, ensuring a strong, long-lasting waterproofing system.
- Flexibility and Durability
Bitumen coatings remain flexible under temperature changes, allowing them to expand and contract without cracking.
Types of Bitumen Coatings
- Hot Applied Bitumen
Heated on-site before application (usually above 150°C)
High adhesion and penetration
Used for roof waterproofing and damp proofing
Requires safety precautions and professional application
Product Reference : Roofgrip HBC 10/20 Rola
- Cold Applied Bitumen
Ready-to-use, solvent-based or water-based
Applied with brushes, rollers, or spray
Ideal for DIY or quick applications on foundations, walls, and retaining structures
Dries into a rubberized, flexible waterproof layer
Product Reference : Aquasheild 50P
- Bitumen Primer
Low-viscosity, penetrating coating
Applied to surfaces before membrane installation
Enhances adhesion between surface and membrane
Fast drying, improves bonding strength significantly
Product Reference : Primer Grip
Areas of Application
Bitumen coatings are used across multiple sectors:
Residential & Commercial
Foundations and plinth beams
Retaining walls
Bathrooms and wet areas
Roof decks
Industrial & Infrastructure
Basements
Underground water tanks
RCC slabs
Expansion joints
DPC (Damp Proof Course)
Specialized Structures
Bridges and tunnels
Concrete pipes
Steel structures exposed to moisture or chemicals
Application Methods & Techniques
➤ Surface Preparation
Clean and dry the surface (remove all type of dust, oil, and moisture-free or debris)
Repair cracks and holes before coating
➤ Priming
Application of bitumen primer to improve bonding with waterproofing membrane
➤ Application
Apply hot or cold bitumen coating using brush, roller, or spray
Usually done in two coats with appropriate drying time in between
➤ Coverage
Check Technical Data Sheet of the product
Why RoofGrip Bitumen Coatings Are Premium in Market
- High-Quality Formulation
Manufactured with select-grade bitumen
Excellent elasticity and crack-bridging ability
Available in both hot and cold applied options
- Fast Drying, Strong Bonding Primers
RoofGrip’s bitumen primer ensures maximum adhesion for membranes
Reduces application time and increases durability
- Ease of Application
Smooth consistency, easy to apply manually or by machine
Cold applied version is ready-to-use, ideal for both professionals and contractors
Suitable for coastal and chemical-prone areas
- Wide Acceptance in the Industry
Used in leading residential, commercial, and industrial projects
Approved by architects, waterproofing consultants, and infrastructure contractors across Pakistan
- Compatible with Membranes
RoofGrip coatings are fully compatible with its range of torch-applied and self-adhesive membranes, forming a complete waterproofing system
Conclusion
Whether you’re waterproofing a basement, prepping a roof for membrane installation, or protecting steel structures, bitumen coating remains a foundational tool in construction. Among the many options in the market, RoofGrip Bitumen Coatings deliver premium quality, ease of use, and long-lasting protection—making them the go-to solution for professional waterproofing across Pakistan.