GRP Pipe
Lamination
& Leak Rectification
Structural GRP pipe lamination, joint overwrapping, and permanent leakage rectification for GRP pipeline systems across Dubai and UAE.
OVERVIEW
GRP pipe lamination is the process of applying glass fibre reinforcement and resin to GRP pipes to restore, strengthen, or seal the pipe structure. ESA Technical Services performs three distinct services: new pipe lamination, joint lamination, and leakage rectification — all carried out by experienced GRP technicians using marine-grade materials.
Materials & Specifications
| Reinforcement | E-Glass Chopped Strand Mat — 300, 450, 600 g/m² |
| Resin System | Isophthalic Polyester / Vinyl Ester (chemical resistance) |
| Glass Content | 25–35% by weight (hand lay-up) |
| Layer Thickness | 1.5mm – 3.5mm per laminate layer |
| Tensile Strength | 70–140 MPa (per ASTM D638) |
| Temperature Resistance | Up to 90°C heat deflection temperature |
| Cure Time (UAE) | 2–4 hours initial cure at 35°C ambient |
| Standards | ASTM D2996, BS EN ISO 2078 |
Joint Lamination Process
Surface Preparation
Joint area sanded to remove surface ply and expose fresh glass fibres. Wiped with acetone to remove contamination.
Alignment & Fit-Up
Pipe sections aligned, supported, and clamped. Gap at joint minimised (≤3mm).
Laminate Application
Catalysed resin applied. CSM layers applied in sequence — each fully wetted and air-purged. Minimum 3 CSM layers per side.
Curing & Finishing
Laminate allowed to cure fully. Surface sanded and gelcoat applied for UV protection.
Quality Inspection
Laminate inspected for dry spots, delamination, and voids. Tap test performed. Pressure test where required.
Leakage Rectification Scope
- Full leak survey and damage assessment — visual, tap test, pressure mapping
- Isolation of affected section where possible
- Surface preparation — grinding, drying, degreasing of repair zone
- Structural lamination repair — matching original wall build-up
- Application of chemical-resistant gelcoat or topcoat over repair
- Pressure test to 1.5× working pressure after cure
- Full documentation — repair record, photographic evidence, test certificate
Why Choose ESA
- Experienced GRP laminators with 10+ years of hands-on UAE site experience
- Marine-grade resins and E-glass reinforcement from approved suppliers
- Catalyst and pot-life management protocols for Dubai’s high ambient temperatures
- Emergency response capability — rapid mobilization across UAE
ESA
GRP Pipe Leak? We Fix It Permanently.
Fast mobilisation across Dubai and UAE. Structural repair — not a temporary patch.