5-Layer Engineered System
RAINPROOF PHC 5 LAYER SYSTEM
Polyurethane Hybrid Coating — SRI ≥ 105, Anti-Algal Topcoat
External structures, roofs — PU hybrid with SRI 105
System Architecture
Layer-by-Layer Configuration
Read from top (final protective layer) down to the substrate.
5
TOPCOAT / FINISH
Protective Weather Coat
Weatherproof, carbonation-resistant, anti-algal topcoat
4
WATERPROOF MEMBRANE
Second Hybrid Coat
Encapsulating jointless structural PU hybrid protection
3
REINFORCEMENT
Micro-Fibre Reinforcement
Technical mesh distributing stress and absorbing micro-movements
2
WATERPROOF MEMBRANE
First Hybrid Coat
Core elastic matrix — PU hybrid waterproofing layer
1
PRIMER / BOND
Substrate Primer
High-adhesion chemical anchoring to concrete or screed
SubstrateConcrete / Screed / Masonry
PRIMER / BOND
WATERPROOF MEMBRANE
REINFORCEMENT
TOPCOAT / FINISH
SRI
SRI ≥105
Solar reflective index (white variant)
TENSILE
3.5 N/mm²
Tensile strength
ELONG
>250%
Elongation
Performance Data
System Specification
System
Acrylic-Polyurethane Hybrid Blend
Solid Content
> 65%
Tensile Strength
≥ 3.5 N/mm²
Elongation
> 250%
Solar Reflective Index (SRI)
≥ 105 (white variant)
Full cure
24 hours; inter-coat: 3–4 hours at 30°C
Coverage per coat
1 litre / 50 sq.ft
Parapet walls
Minimum 300mm height coverage
Substrate moisture
< 4% before application
Packing
5L, 10L, 20L, 210L
Application Sequence
How This System Is Installed
- 1Substrate PrimerHigh-adhesion chemical anchoring to concrete or screed
- 2First Hybrid CoatCore elastic matrix — PU hybrid waterproofing layer
- 3Micro-Fibre ReinforcementTechnical mesh distributing stress and absorbing micro-movements
- 4Second Hybrid CoatEncapsulating jointless structural PU hybrid protection
- 5Protective Weather CoatWeatherproof, carbonation-resistant, anti-algal topcoat
Applicable Structures
Where This System Excels
External Structures Roofs Facades Cool-Roof Applications
Site-Specific Estimate
Get an engineered quote for RAINPROOF PHC 5
Our technical team specifies each layer to your substrate, gradient, and exposure. Toll-free consultation available across India.