FRP/GRP Stacks (Chimneys & Exhaust Stacks)
SREX Composites is a leading manufacturer of high-performance frp stack and grp stack systems engineered for safe and efficient handling of corrosive gases, industrial fumes, chemical vapors and process emissions. Our advanced frp chimney, grp chimney, frp chimney stack, grp chimney stack, and fibreglass chimney stack solutions are designed to safely convey industrial exhaust streams into the atmosphere while maintaining long-term structural integrity and corrosion resistance.
Unlike conventional steel chimneys that deteriorate due to acidic condensates, high humidity and corrosive industrial environments, our engineered composite stack solutions provide a non-metallic, corrosion-resistant and maintenance-friendly alternative for modern industries.
SREX Composites designs and manufactures industrial frp exhaust stack, grp exhaust stack, frp emission stack, grp flue stack, frp ventilation stack, frp scrubber stack, and grp scrubber stack systems tailored for chemical plants, fertilizer industries, power plants, wastewater treatment facilities, scrubber discharge applications, ventilation systems and thermal process exhaust applications.
Our complete frp chimney system and grp chimney system solutions are engineered for continuous outdoor exposure, corrosive gas handling, temperature variations and long operational life. We also manufacture heavy-duty frp tall stack and grp tall stack structures for high elevation discharge requirements across industrial sectors.
SREX Composites also provides competitive grp chimney stack prices based on project specifications, stack height, operating conditions, resin selection and structural requirements.
Why FRP/GRP Material for Stacks?
Applications of FRP/GRP Stacks
FRP Fan Stacks
Design & Engineering Features
Advantages of FRP/GRP Stacks
Project Capabilities
Standards & Compliance
Why FRP/GRP Material for Stacks?
✔ Corrosion Resistance
FRP/GRP composite structures resist highly corrosive condensates containing:
- Chlorides
- Sulphuric acid mist
- Nitric fumes
- Fertilizer vapors
- Chemical exhaust and process gases
This makes FRP/GRP stacks superior to steel chimneys that require heavy coatings and frequent maintenance.
✔ Lightweight & High Strength
The composite structure ensures:
- Easy installation
- Reduced foundation loads
- Higher wind load resistance
The lightweight structure of every frp stack and grp stack reduces crane handling requirements while maintaining excellent structural strength and durability.
✔ Thermal Stability
Our stack systems are designed with advanced resin systems that tolerate thermal gradients typical in:
- Wet scrubbing discharge
- Industrial ventilation gases
- Medium-temperature flue gas applications
This makes our grp flue stack, frp exhaust stack, and frp ventilation stack systems highly reliable for demanding industrial operating conditions.
✔ Long Service Life
Non-metallic, corrosion-proof behavior ensures multi-decade performance even under aggressive industrial exhaust conditions.
✔ Smooth Internal Surface
The smooth internal surface promotes:
- Low flow resistance
- Reduced deposition
- Improved fume evacuation efficiency
This enhances operational efficiency and improves gas evacuation performance across every frp chimney stack and grp chimney stack application.
✔ Maintenance Friendly
Unlike steel stacks that corrode from inside and outside, FRP/GRP stacks need minimal inspection and no repainting.
Applications of FRP/GRP Stacks
FRP/GRP stacks are widely used in:
Industrial & Chemical Plants
- Chemical process exhaust
- Scrubber discharge stacks
- Vent gas stacks
- Fertilizer plant chimneys
Power & Energy Sector
- Cooling tower exhaust
- Thermal power auxiliary stacks
Water & Wastewater Sector
- Gas venting from treatment units
- Odor control system exhaust
Metallurgical & Mining
- Acid plant exhaust handling
- Vapors from leaching units
HVAC & Ventilation
- Industrial building exhaust
frp fan stack assemblies
FRP Fan Stacks
SREX Composites manufactures advanced frp fan stack systems designed to improve the efficiency of cooling towers and induced draft ventilation units. These systems are engineered for aerodynamic airflow, corrosion resistance and lightweight installation, contributing to reduced energy consumption and improved air throughput.
Design & Engineering Features
Structural Design
Stacks are engineered considering:
- Wind loads
- Seismic requirements
- Temperature gradients
- Vibration damping
Material Selection
Depending on service:
- Isophthalic resin
- Bisphenol resin
- Vinyl ester resin
- Fire-retardant resin (special applications)
Construction Types
- Segmented assembly (for large heights)
- Monolithic molded segments
- Integrated base flange system
- Optional thermoplastic liners for extreme corrosive media
Accessories & Options
- FRP access platforms
- Lightning arrestor brackets
- FRP ladders, cages & maintenance platforms
- Inspection ports
- Gas sampling points
Advantages of FRP/GRP Stacks
- Non-corrosive internal and external surfaces
- Lightweight installation reduces crane requirements
- High wind stability
- Longer lifespan compared to steel stacks
- No painting or coating required
- UV-resistant external finish
- Customizable diameter, height, thickness and color
Project Capabilities
SREX Composites provides:
- Turnkey FRP/GRP stack solutions
- Engineering design with detailed drawings
- Manufacturing in modular transport-friendly segments
- On-site assembly and lamination
- Fitment with scrubber systems and ducting interfaces
Stacks can be manufactured up to large diameters and heights based on project requirements.
Standards & Compliance
Depending on application, our stacks conform to:
- ASTM standards for FRP structural laminates
- BS 4994 for reinforced plastic equipment
- ASME RTP-1 guidelines (where applicable)
- IS and DIN composite design references
- Industry norms for chimney wind-load design