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BlackMAX® is a cost-effective alternative to rigid stormwater drainage pipes providing exceptional performance and durability. Manufactured from polypropylene, BlackMAX® pipes are resistant to corrosive and aggressive ground conditions, such as acid sulphate soils or saline ground waters; resulting in increased longevity of the pipeline.

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Iplex BlackMAX® pipes and fittings are suitable for installation in the following applications:

  • Stormwater drainage
  • Estuarine and ocean outfalls
  • Road culverts
  • Low head irrigation
  • Slip lining
  • Leachate collection
  • Stormwater retention
BlackMAX Technical Guide - V1 December 2021


Throughout Australia BlackMAX® has been chosen for its unique characteristics and properties including:

Features Benefits
Durability The tough, ductile nature of polypropylene enable pipes to resist impact sustained in course of transportation and site handling, without damage
Abrasion and corrosion resistant Polypropylene is notably resistant to abrasion and has excellence resistance to corrosive drainage. The material is resistant to aggressive ground conditions, such as acid sulphate soils or saline ground waters
Effective rubber ring joint Designed for ease of assembly and jointing. Pipes can be cut to length on site and rejoined
Low embodied energy Environmental benefits
Inground performance High tolerance to deformation and can accommodate soil movement without structural damage
Smooth bore for hydraulic performance Combined with their high resistance to scale and sediment build up provides excellent hydraulic performance. This can result in reduced grades to accomplish a given flow
Lightweight for ease of installation Can be easily manoeuvred in confined areas by hand or with light lifting equipment. Site handling and efficiency is therefore improved, which can result in significant savings on installation
Material Options

Material Options

Mechanical Properties
Property Value & Unit
Density 900 kg/m³
Design Stress 17.5 MPa
Ultimate Tensile Strength 28.0 MPa
Ring Bending Modulus 1300 MPa
Tensile Modulus 3000 MPa
Poisson’s Ratio 0.45
Thermal Properties
Property Value & Unit
Max Continuous Service Temperature 50°C
Specific Heat 1045 J/kg.K
Thermal Conductivity 0.138 – 0.150 W/m.K
Coefficient of Thermal Expansion 7 x 10-5 / °C
Vicat Softening Temperature >79°C
Chemical Resistance

Polypropylene is inherently resistant to a wide range of chemicals such as acids, alkalis, salts, wetting agents and alcohols. It is however attacked by oxidising acids such as fuming nitric acid or hot concentrated sulphuric acid, neither of which should be encountered in a drain. Polypropylene is swollen and softened by halogenated solvents (for example, trichlorethylene) and hydro-carbon solvents such as xylene and benzene. However, the effect is not immediate and the occasional contact with solvents such as petrol or diesel is acceptable for PP pipes used for drainage and sewerage applications.

SBR seals are also resistant to a wide range of chemicals such as salt solutions, alkalis, glycols and some alcohols. SBR is swollen by a number of organic solvents, however, the seals are encapsulated in the pipe profile and to a large extent, isolated from the contents of the pipe. As only a small part of the seal surface is in contact with liquid in the pipeline, any occasional spillages or illegal dumping of chemicals should have a minimal effect.

Iplex Chemical Resistant Tool

Product Details

Product Details

Standards and Approvals

Iplex BlackMAX® pipes and fittings are manufactured to the Australian Product Standard under third party accredited quality assurance system conforming to ISO 9001.

BlackMAX® pipe has ISO Type 5 third-party StandardsMark Certification, License number SMXXX accordance with AS/NZS 5065 “Polyethylene (PE) and polypropylene (PP) pipes and fittings for drainage and sewerage applications”.

BlackMAX® pipes and fittings have been appraised by Water Services Association of Australia (WSAA) for performance compliance with AS/NZS 5065 (WSAA Appraisal 03/05).

View Iplex Product Certifications

Environmental Credentials

Iplex Pipelines has published verified Environmental Product Declaration (EPD) on our range of Polypropylene pipes. EPD’s are third party certified documents based on ISO 14025 and EN 15804 Standards that communicate transparent and comparable information about the life-cycle environmental impact of a product or service. Specifically, product declarations include information on the environmental impact of raw material acquisition, energy use and efficiency, composition of materials and chemical substances, emissions to air, soil and water and waste generation.

View Iplex’s BackMAX® and SewerMAX® polypropylene drainage pipes EPD

BlackMAX® Pipe Range and Dimensions

BlackMAX® pipes are available in diameters ranging from DN225 through to DN600 in SN8.

Iplex BlackMAX Pipe Dimensions v2

BlackMAX® Fittings Range

A range of standard fittings, including bends, tees, junctions, closed ends, couplings, plugs, reducers, saddles and adaptors are manufactured for use with BlackMAX® and SewerMAX® pipes. Fittings can be fabricated from BlackMAX® or SewerMAX® pipe sections, PVC pipe sections, GRP / PVC and GRP / VC composite materials.

BlackMAX® stormwater drainage fittings in sizes DN225, DN300 and DN375 are generally fabricated from PVC pipe sections with moulded socketed ends for connection to BlackMAX® pipe spigots. The use of PVC in these sizes provides improved manufacturing efficiencies and reduced costs compared with the PP fabrication process. The PVC BlackMAX® range of fittings complies with Australian Standard AS/NZS 1260: “PVC-U pipes and fittings for drain waste and vent applications”.

BlackMAX® stormwater drainage fittings in sizes DN450, DN525 and DN600 are fabricated from BlackMAX® (PP) pipe sections and are generally supplied with socketed ends suitable for rubber ring jointing. Other configurations, such as all spigoted ends, are also available on request with separate pipe couplings for jointing. DN100 and DN150 components are supplied with either PVC (RRJ or SWJ sockets) or standard solid wall polypropylene plain-ended spigots (110mm OD) and (160mm OD), allowing lateral side connections such as property branch connections. BlackMAX® (PP) fittings comply with Australian Standard AS/NZS5065 “Polyethylene and polypropylene pipes & fittings for drainage and sewerage applications”.

GRP, GRP/PVC and GRP/VC composite fittings are manufactured specifically for use with SewerMAX® pipes with socketed ends for connection to SewerMAX® pipe spigots. GRP fittings are also available with PVC or VC socket or spigot ends for lateral connections to incoming PVC or VC sewer pipes. GRP SewerMAX® fittings comply with Australian Standard Revision AS3571 “Glass reinforced thermosetting plastics (GRP) pipes – Polyester based – Water supply, sewerage and drainage applications”.

To view the full range of fittings and dimensions please view the BlackMAX® and SewerMAX® product Range.


BlackMAX® - Pipeline Design Hydraulic
BlackMAX® - Pipeline Design Structural
Handling & Storage

Handling & Storage

BlackMAX® - Handling and Storage
Installation & Testing

Installation & Testing

BlackMAX® - Installation
BlackMAX® - Testing
BlackMAX® - Testing
Is BlackMAX™ suitable for above ground applications?

Yes, provided the pipe is adequately supported along its entire length and at each socket joint.

Why is BlackMAX® yellow on the inside?

The yellow inner liner allows for ease of visual inspection during installation and commissioning.

How long will BlackMAX® pipe last?

Based on the performance requirements of the standard and general national and international knowledge of Polypropylene as a pipeline material, BlackMAX® is expected to exceed 100 years before major rehabilitation, provided the design, installation, testing and commissioning are in accordance with the manufacturers recommendations, WSA 02 Sewerage code or agency requirements.

How deep can you bury BlackMAX® ?

BlackMAX® pipes have a relatively high pipe stiffness of not less than 8000N/m.m, classified, as SN8 and are suitable for cover heights of 2 to 10 metres. . A full structural analysis to AS/NZS 2566.1 should be completed to confirm suitability.

Can BlackMAX® be used under a road, if so what cover does it require?

Yes, BlackMAX® is adequate for AUSTROADS highway loadings. 600mm of cover is required as a minimum under sealed roads and 750mm of cover under unsealed roads. However this can vary with the regulatory authority and a full structural analysis to AS/NZS 2566.1 should be completed to confirm suitability..

What sizes are BlackMAX® available in?

BlackMAX® pipes are manufactured in diameters, DN225, DN300, DN375, DN450, DN525 and DN600.

How do join BlackMAX® pipes?

Both BlackMAX® pipes and fittings are manufactured with a spigot and socket rubber ring jointing system.

Is BlackMAX® ribbed inside?

No. The inner wall is a smooth liner, providing excellent hydraulic performance

How do you connect BlackMAX® to head walls or Manholes?

BlackMAX® pipes can be directly cast into concrete maintenance holes, pits or other concrete structures. Refer to the installation guidelines for further information.

What about jetting and root cutters to clean the lines. Can BlackMAX® be water jet cleaned?

Yes, provided appropriate methods are used. For complete information, refer to PIPA Guideline, POP205.

Does BlackMAX® conform to the relevant standards?

Yes. BlackMAX® conforms to AS/NZS 5065 ‘Polyethylene and polypropylene pipes and fittings for drainage and sewerage applications. SAI Global also certifies both products to the Australian and New Zealand standard.

Has BlackMAX® been appraised by WSAA?

Yes, Product appraisal 03/05. BlackMAX® is regarded as fit for purpose and rated ‘A’ with a life expectancy in excess of 100 years!

What types of fittings are available for BlackMAX® pipe?

A full range of standard fittings, including bends, tees, junctions, closed ends, couplings, plugs, reducers, saddles and adaptors are available providing a complete pipeline system

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