The Art of Fiberglass & Polyethylene, Engineered with Innovation and Precision for Lasting Performance.
FRP Fiberglass Mui Tanks
Publish Date: October 1, 2026
Mui Tank fiberglass water tanks are fiberglass reinforced plastic (FRP) water storage tanks supplied by Mui Fatt Marketing Sdn Bhd and manufactured by Y.T. Fibreglass Industries Sdn Bhd in Malaysia. Available in closed-top and open-top configurations, these tanks range from 60 gallons (270 litres) for the MT-60 model to 27,680 gallons (approximately 125,800 litres) for the largest 4 m diameter closed-top tank. They are certified to MS 1241:2011 by SIRIM QAS International and applicable tanks are registered with SPAN for water supply systems in Peninsular Malaysia, Putrajaya and Labuan. Mui Tank fiberglass water tanks are used for residential, commercial and industrial water storage, with an 8-year outdoor and 10-year indoor warranty for the applicable range.
About Mui Tank Fiberglass Water Tanks
Mui Tank is a range of fiberglass reinforced plastic water storage tanks supplied by Mui Fatt Marketing Sdn Bhd for cold water storage and general water-holding applications in Malaysia.
The tanks are manufactured using fiberglass reinforced polyester with hand laying and filament winding processes. Depending on the application and available installation space, customers can choose from closed-top, open-top, circular and square tank configurations.
Mui Tanks provide a seamless fiberglass construction with rust-free and sunlight-resistant properties, making them suitable for a wide range of water storage requirements.
Fiberglass Tank Configurations
Closed Top Fiberglass Tanks
Closed-top Mui Tanks provide covered water storage for applications where a closed configuration is required. Cylindrical and larger custom tank configurations are available in different diameters, heights and capacities.
Larger tanks can be supplied with accessories such as level indicators, internal ladders, external ladders and other access equipment according to the tank configuration and installation requirements.
Open Top Fiberglass Tanks
Open-top Mui Tanks are available in both circular and square configurations. They provide flexible water storage options where an open-top design is appropriate.
Available square models include MT-220, MT-440, MT-660, MT-880, MT-1320 and MT-1760. Circular models include MT-220/C, MT-440/C, MT-660/C and MT-880/C.
Mui Tank Fiberglass Water Tank Specifications
| Specification | Details |
|---|---|
| Tank type | Fiberglass reinforced plastic (FRP) water storage tank |
| Construction | Fiberglass reinforced polyester |
| Manufacturing process | Hand laying and filament winding |
| Configurations | Closed top and open top |
| Open top options | Circular and square |
| Capacity range | 60 gallons (270 litres, MT-60) to 27,680 gallons (approximately 125,800 litres) for the largest 4 m diameter closed-top tank |
| Standard | MS 1241:2011 |
| SIRIM certification | SIRIM QAS International |
| Water industry registration | Registered with SPAN |
| SPAN registration capacity | SPAN registration covers tanks up to 100,000 litres (22,000 gallons). |
| Primary application | Cold water storage |
| Warranty | 8 years outdoor / 10 years indoor |
Mui Tank Circular Closed Top Series
The Mui Tank Circular Closed Top Series is available in 1.2 m, 1.5 m, 2.0 m, 2.4 m, 3.0 m and 4.0 m diameters, with capacities ranging from 250 to 27,680 gallons. The maximum height varies by tank diameter and capacity.
| Tank Diameter | Capacity Range | Maximum Height |
|---|---|---|
| 1.2 m | 250–750 gallons | 3,000 mm |
| 1.5 m | 400–1,460 gallons | 3,750 mm |
| 2.0 m | 700–3,460 gallons | 5,000 mm |
| 2.4 m | 1,000–5,980 gallons | 6,000 mm |
| 3.0 m | 2,000–11,680 gallons | 7,500 mm |
| 4.0 m | 5,000–27,680 gallons | 10,000 mm |
Available Mui Tank Models
Mui Tank fiberglass water tanks are available in different shapes, sizes and capacities to accommodate residential, commercial and industrial installation requirements.
Open Top Square Tanks
| Model | Capacity | Approximate Dimensions |
|---|---|---|
| MT-220 | 1,000 L | 1 m × 1 m × 1 m |
| MT-440 | 2,000 L | 2 m × 1 m × 1 m |
| MT-660 | 3,000 L | 3 m × 1 m × 1 m |
| MT-880 | 4,000 L | 2 m × 2 m × 1 m |
| MT-1320 | 6,000 L | 3 m × 2 m × 1 m |
| MT-1760 | 8,000 L | 2 m × 2 m × 2 m |
Open Top Circular Tanks
| Model | Capacity | Approximate Diameter × Height |
|---|---|---|
| MT-220/C | 1,000 L | 1.35 m × 1 m |
| MT-440/C | 2,000 L | 1.70 m × 1 m |
| MT-660/C | 3,000 L | 2.00 m × 1 m |
| MT-880/C | 4,000 L | 2.32 m × 1 m |
Other Open Top Models
The smaller open-top Mui Tank models include MT-60, MT-80, MT-100, MTD-150, MTD-200, MTD-250, MT-250, MT-300 and MT-400. The MTD models are the lower-height versions of the corresponding tank designs. For example, the MTD-250 has internal dimensions of 60″ × 48″ × 24″, while the MT-250 has internal dimensions of 48″ × 48″ × 30″.
| Model | Capacity | Internal Dimensions (L × W × H) |
|---|---|---|
| MT-60 | 270 L (60 gallons) | 29″ × 29″ × 20″ |
| MT-80 | 360 L (80 gallons) | 39″ × 31″ × 20″ |
| MT-100 | 450 L (100 gallons) | 38″ × 32″ × 23″ |
| MTD-150 | 680 L (150 gallons) | 48″ × 36″ × 24″ |
| MTD-200 | 910 L (200 gallons) | 48″ × 48″ × 24″ |
| MTD-250 | 1,140 L (250 gallons) | 60″ × 48″ × 24″ |
| MT-250 | 1,140 L (250 gallons) | 48″ × 48″ × 30″ |
| MT-300 | 1,360 L (300 gallons) | 51″ × 51″ × 32″ |
| MT-400 | 1,820 L (400 gallons) | 48″ × 48″ × 48″ |
For the larger open-top square tanks, the catalogue specifies wall thicknesses of 4 mm for MT-220 and MT-440, 5 mm for MT-660, 6 mm for MT-880, 7 mm for MT-1320 and 8 mm for MT-1760. Square tanks of 880 gallons and above have steel reinforcement laminated with FRP.
Fiberglass Construction and Manufacturing
Mui Tank fiberglass water storage tanks are manufactured from fiberglass reinforced polyester using hand laying and filament winding processes.
Fiberglass reinforced construction provides a seamless tank structure with resistance to rust and exposure to sunlight. Tank construction, wall thickness and dimensions vary according to the selected model and capacity.
Physical Properties of FRP
The fiberglass reinforced plastic (FRP) material used in Mui Tank water tanks has the following physical properties:
| Property | Result | Requirement |
|---|---|---|
| Tensile strength | 103.0 MN/m² | 70 MN/m² minimum |
| Bending strength | 182.4 MN/m² | 100 MN/m² minimum |
| Elastic modulus in bend | 7906.0 MN/m² | 6000 MN/m² minimum |
| Barcol hardness | 50 | Moulded surface: 58 maximum / 43 minimum; 62 maximum / 42 minimum |
| Water absorption | 0.15% | 1.0% maximum |
| Lap shear strength | 11.03 MN/m² | 7.0 MN/m² minimum |
Fiberglass Water Tank Applications in Malaysia
Mui Tank fiberglass water tanks are used for a range of water storage requirements in residential, agricultural and commercial settings. Common applications include:
- Household water storage for residential properties and domestic water supply.
- Agricultural water storage for farms and other agricultural applications.
- Fish farming and related aquaculture water storage requirements.
- Small industrial water storage where additional water storage capacity is required.
- Rainwater collection and rainwater harvesting systems.
- General water storage for projects requiring a fiberglass or FRP storage tank.
The appropriate Mui Tank model depends on the required storage capacity, tank configuration, installation space and intended application.
Rainwater Harvesting Tanks in Malaysia
Mui Tank fiberglass water tanks can be used as storage tanks in rainwater harvesting systems for residential, agricultural, commercial and other suitable applications. Mui Fatt offers both closed-top and open-top fiberglass tank configurations, allowing the tank to be selected according to the required storage capacity, available space and installation requirements.
Typical Rainwater Harvesting Setup
A typical rainwater harvesting system collects rainwater from a roof through gutters and downpipes before directing it to the storage tank. Depending on the system design, the setup may include a leaf or debris screen, a first flush or pre-filtration stage, the fiberglass storage tank, an overflow connection and a distribution outlet or pump for the intended use.
The required tank capacity depends on the available collection area, expected rainfall, intended water use, available installation space and the required storage volume. Mui Fatt can advise on a suitable Mui Tank configuration for the project.
Open Top vs. Closed Top for Rainwater Harvesting
Closed-top Mui Tanks are generally the preferred configuration when collected rainwater needs to be protected from direct exposure to the surrounding environment. The enclosed design helps reduce the entry of leaves, dust and other debris and provides a more controlled storage environment.
Open-top Mui Tanks can also be used for rainwater collection where an open configuration is suitable. Because the tank is open, the installation should include appropriate protection against debris and unauthorized access, together with the correct cover or lid for the selected tank.
Debris and Mosquito Protection
Rainwater harvesting systems should be designed to prevent leaves, insects and other debris from entering the storage tank. Roof gutters and tank inlets should use suitable screening or filtration where required, and the tank should be kept properly covered.
Keeping the tank covered also helps prevent mosquitoes from accessing standing water. Any inlet, overflow or other opening should be protected with suitable screening or fittings appropriate for the system design.
Ground and Elevated Installation
Mui Tank fiberglass tanks can be installed on suitable ground-level or elevated supporting structures, provided the support is properly designed for the selected tank and its full water load.
For closed-top FRP tanks, the installation guide specifies an even concrete platform at least 250 mm (10 inches) above ground level, free from stones and debris. Connected pipework should also be independently supported.
Elevated installation may be considered where the system requires additional height for gravity-fed water distribution. The supporting platform or structure must be suitable for the tank, water load and site conditions. Contact Mui Fatt with your site details when an elevated or other project-specific installation is required.
For rainwater harvesting projects, the appropriate Mui Tank configuration depends on the required storage volume, tank type, available space and installation conditions. Contact Mui Fatt Marketing Sdn Bhd for assistance selecting a suitable fiberglass rainwater harvesting tank.
MS 1241:2011 SIRIM Certified Fiberglass Water Tanks
Mui Tank fiberglass water tanks are certified by SIRIM QAS International to MS 1241:2011, the Malaysian Standard for one-piece glass fibre reinforced polyester (GRP) water tanks with nominal capacities of 100,000 litres and below.
Y.T. Fibreglass Industries Sdn Bhd manufactures the certified Fibreglass Water Tanks. The applicable Mui Tank models are covered by SIRIM QAS International product certification to MS 1241:2011.
The current SIRIM certification is valid until 21 April 2027.
Registered with SPAN
Y.T. Fibreglass Industries Sdn Bhd is a SPAN-registered supplier. Mui Tank fiberglass storage tanks are registered with SPAN for water supply systems in Peninsular Malaysia, Putrajaya and Labuan, based on the applicable SIRIM certification to MS 1241:2011.
| Brand | MF |
|---|---|
| Product | Storage Cistern / Tank |
| Standard | MS 1241:2011 |
| Application | Sistem Bekalan Air |
| Registration validity | 7 May 2027 |
Customers who require copies of the applicable certificates can request them through the Mui Fatt Product Certificate page .
The registered range includes models for large-capacity water storage, with the applicable registration covering capacities up to 100,000 litres. Final model selection depends on the required capacity, configuration and installation requirements.
Can Mui Tank fiberglass tanks be installed underground?
Yes. Closed-top Mui Tanks can be designed for underground installation. Mui Fatt also fabricates FRP septic tanks for buried installation. Contact us with your site details for an underground design.
Fiberglass Tank Installation Requirements
Proper support and handling are essential when installing a fiberglass water storage tank. The tank should be positioned on a suitable, level supporting surface with the entire base properly supported.
Closed Top Tank Installation
- Use the designated lifting lugs when lifting the tank.
- Use suitable crane equipment, ropes or nylon slings.
- Do not lift the tank using side fittings.
- Lift the tank only when it is empty.
- Install the tank on an even concrete platform at least 250 mm (10 inches) above ground level.
- Keep the concrete platform free from stones and other debris.
- The area surrounding the tank should be fenced to prevent unauthorized access and protect the tank from accidental impact.
- Support connected pipework and joints with suitable steel or concrete supports.
- Protect the tank from impact by tools and sharp objects.
- Keep the tank away from heaters, electric bulbs and other heat sources.
Open Top Tank Installation
- Install the tank on a suitable, flat and fully supported base.
- Use a backing plate when installing pipe connections.
- Use suitable washers for pipe connections.
- Do not use putty or jointing compound.
- Cut pipe connection holes cleanly, with smooth edges and without notches.
- Position the outlet correctly according to the tank and pipework requirements.
- Use the correct manufacturer-supplied or recommended lid for the tank.
Tank Base Support
A flat and stable base is required to support the tank properly. Open-top tanks should be installed on a suitable flat support such as plywood or concrete, with the base fully supported.
Concrete Slab Requirements
| Tank Capacity | Slab Specification |
|---|---|
| Below 600 gallons | 100 mm with 1 layer BRC A6 |
| 600 to below 2,000 gallons | 100 mm with 2 layers BRC A6 |
| 2,000 to below 5,000 gallons | 150 mm with 2 layers BRC A9 |
| 5,000–11,000 gallons | 200 mm with 2 layers BRC A9 |
Pipe and Fitting Installation
Proper pipe support helps prevent excessive load and movement from being transferred to the tank fittings.
- Support all connected pipes and valves independently.
- Do not overtighten nuts or tank fittings.
- Do not knock or impact fiberglass fittings and nozzles.
- Use suitable fittings for the pipe size and installation.
- Minimize restraint between interconnected tanks.
- Allow for movement caused by expansion and contraction where required.
PVC or ABS fittings can be used for smaller pipe connections, while FRP or steel flange fittings are suitable for larger connections according to the tank and piping requirements.
Tank Accessories
Mui Tank fiberglass storage tanks can be supplied with accessories according to the selected tank and installation requirements.
- Level indicators
- Internal ladders
- External ladders
- Railings
- Cage ladders
Larger tanks may require additional access and safety equipment depending on tank dimensions and installation conditions.
Fiberglass Water Tank Warranty
Mui Tank fiberglass water storage tanks are covered by:
- 8-year warranty for outdoor installation
- 10-year warranty for indoor installation
The warranty applies to cold water storage under the specified warranty conditions. Correct installation and handling are required for warranty coverage.
Fiberglass vs. Polyethylene (PE) Water Tanks
Fiberglass (FRP) and polyethylene (PE) water tanks differ in material, construction, strength, capacity and installation options. PE tanks are manufactured in fixed models and sizes using rotational moulding, while Mui Tank FRP fiberglass tanks can be custom-made to suit the required project capacity, dimensions and installation conditions.
FRP is the stronger material and is suitable for projects where higher structural strength and larger storage capacities are required. Closed-top FRP tanks can also be designed for underground installation, subject to the project and site requirements. PE tanks are not recommended for underground installation.
Capacity is another major difference. Mui Tank FRP fiberglass tanks range from 60 gallons (270 litres) up to 27,680 gallons (approximately 125,800 litres), while Mui Fatt PE water tanks range up to 4,400 gallons.
For more information about the available PE tank models and sizes, see our PE Water Storage Tanks .
Fiberglass Mui Tank FAQ
What is a fiberglass water storage tank?
A fiberglass water storage tank is manufactured from fiberglass reinforced polyester (FRP) and is designed for storing water in residential, commercial and industrial applications.
What standard do fiberglass Mui Tanks meet?
Applicable fiberglass Mui Tanks are certified to MS 1241:2011 under SIRIM QAS International product certification.
What is MS 1241:2011?
MS 1241:2011 is the Malaysian Standard for one-piece glass fibre reinforced polyester (GRP) water tanks with nominal capacities of 100,000 litres and below. The standard covers requirements for GRP water tanks used for water storage in domestic, commercial and industrial applications.
Who manufactures fiberglass Mui Tanks?
Fiberglass Mui Tanks are manufactured by Y.T. Fibreglass Industries Sdn Bhd.
Are fiberglass Mui Tanks registered with SPAN?
Yes. Mui Tank fiberglass tanks are registered with SPAN for water supply systems in Peninsular Malaysia, Putrajaya and Labuan, based on their SIRIM certification to MS 1241:2011. Y.T. Fibreglass Industries Sdn Bhd is a SPAN-registered supplier.
What types of fiberglass Mui Tanks are available?
Fiberglass Mui Tanks are available in different configurations, including closed-top and open-top tanks, with circular and square tank designs available for different applications.
What capacities are available for fiberglass Mui Tanks?
Fiberglass Mui Tanks are available from 60 gallons (270 litres) for the MT-60 model up to 27,680 gallons (approximately 125,800 litres) for the largest 4 m diameter closed-top tank. The circular closed-top series ranges from 250 to 27,680 gallons, while the smaller open-top models range from 60 to 400 gallons. SPAN registration covers applicable tanks up to 100,000 litres (22,000 gallons).
Are fiberglass Mui Tanks suitable for cold water storage?
Yes. Fiberglass Mui Tanks are generally used for cold water storage in household, agricultural and other water storage applications.
Are fiberglass Mui Tanks suitable for drinking water?
GRP tanks are suitable for cold and potable water applications when the specific tank and applicable certification requirements are met. For drinking-water use, confirm the applicable SIRIM certification and follow the manufacturer's requirements for the selected tank.
How are fiberglass Mui Tanks manufactured?
Fiberglass Mui Tanks are manufactured using fiberglass and unsaturated polyester resin as composite materials, with hand lay-up and filament winding processes.
How long is the warranty for fiberglass Mui Tanks?
The product warranty is 8 years for outdoor installation and 10 years for indoor installation, subject to the applicable terms and conditions.
How long do fiberglass Mui Tanks last?
The service life of a fiberglass Mui Tank depends on factors such as installation conditions, usage and maintenance. The warranty period is 8 years for outdoor installation and 10 years for indoor installation, subject to the applicable terms and conditions, but the warranty period should not be treated as the maximum service life of the tank.
Can large fiberglass tanks be supplied?
Yes. The Mui Tank circular closed-top series includes tanks from 250 gallons to 27,680 gallons across diameters of 1.2 m to 4.0 m. The 4.0 m diameter series has capacities from 5,000 to 27,680 gallons, with a maximum height of 10,000 mm. Larger certified models include capacities up to 99,880 litres under the current SIRIM product certification schedule. SPAN registration covers applicable tanks up to 100,000 litres (22,000 gallons).
Are fiberglass Mui Tanks suitable for residential use?
Yes. Fiberglass Mui Tanks are used for household water storage as well as agricultural, small industrial and other water storage applications.
What size fiberglass Mui Tank do I need?
The required tank size depends on the required water storage volume and available installation space. Mui Tank options include smaller open-top models from 60 gallons (270 litres) to 400 gallons (1,820 litres), larger open-top square models from 220 gallons (1,000 litres) to 1,760 gallons (8,000 litres), and circular closed-top tanks from 250 gallons to 27,680 gallons. The circular closed-top series is available in 1.2 m, 1.5 m, 2.0 m, 2.4 m, 3.0 m and 4.0 m diameters. Select the model based on the required storage volume, configuration and available installation space.
What is the difference between fiberglass and polyethylene water tanks?
Fiberglass (FRP) and polyethylene (PE) tanks differ in material, construction, strength, capacity and installation options. PE tanks are manufactured in fixed models and sizes, while Mui Tank FRP fiberglass tanks can be custom-made to suit project requirements. FRP is the stronger material and can be used for larger-capacity tank designs.
Closed-top FRP tanks can be designed for underground installation, while PE tanks are not recommended for underground use. Mui Tank FRP capacities range from 60 gallons (270 litres) to 27,680 gallons (approximately 125,800 litres), compared with up to 4,400 gallons for PE tanks.
See our PE Water Storage Tanks for the available PE tank models and sizes.
How should a fiberglass water tank be installed?
The tank should be installed on a suitable flat and stable support with the entire base properly supported. Connected pipework should be supported independently, and lifting should be carried out using the designated lifting points with the tank empty.
Fiberglass Tank Supplier in Malaysia
Mui Fatt Marketing Sdn Bhd supplies fiberglass reinforced plastic (FRP) water tanks for residential, commercial and industrial projects across Malaysia.
Technical information reviewed by Danny Ng Shin Lai, Director & Lead Composite Technical Specialist at Mui Fatt Marketing Sdn Bhd. Danny studied Materials Science and Engineering at the University of California, Berkeley, graduating with the Class of 2012. He supports technical design, composite fabrication standards, engineering requirements and technical compliance for the company's product range. View Danny Ng Shin Lai on LinkedIn.
Contact us with your required tank capacity, installation location, tank configuration and project requirements. Our team can recommend a suitable Mui Tank configuration and provide a quotation.
Request a Mui Tank Quotation
Mui Fatt Marketing Sdn Bhd
Lot 11793, Jalan Pengkalan Nelayan,
Telok Gong, Kampung Telok Gong,
42000 Port Klang, Selangor Darul Ehsan, Malaysia
Phone: +603 3134 3888
WhatsApp: +60 12 625 7219
Email: sales@muifatt.com.my
Looking For Reliable Fibreglass
Or Polyethylene Products?
Talk to our team today. We’ll help you find the right solution for your business needs.
Get a Quote
