Your Partner in Rotational Moulding

Our can-do attitude, customer focus and consistent quality makes us your first choice in rotomoulding.

Your Partner in Rotational Moulding

Our can-do attitude, customer focus and consistent quality makes us your first choice in rotomoulding.
Our Products Our Services

Explore our products

Navigational Markers

Navigational Markers

Our range of markers meet NZ Maritime standards, are durable and come in a range of sizes, shapes and colours to meet your needs. Contact us for fit for purpose durable markers.

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Pile Caps

Pile Caps

Marina pile caps provide a practical and professional finish on marina piles. Available in a range of sizes and colours to suit your marina.

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Large Planters

Large Planters

Our 1.2 m planters come in a range of contemporary finishes and are ideal to make an impact in commercial spaces or family gardens.

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Medium Planters

Medium Planters

A versatile planter for patios, herbs, shrubs and vegetables. Comes in a range of colour choices to suit your style.

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Multibox

Multibox

A truly versatile distribution or storage box with a tight-fitting lid suitable for multiple applications. Use it for toys, to store pet-food, in your boat or to sit on!

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Learn more about us

We are a locally owned and operated Northland business that has a strong quality, customer and workplace focus.

We have the expertise to design and develop a mould with our clients and to produce rotational moulded products to exceed your expectations.

Industry Leader
Producing more than 2000 products per month makes us one of New Zealand’s leading Rotomoulders.
World Class Service
We are a local business which provides world-class service.
Fast & Efficient
We produce your products efficiently and always deliver on time.

Learn more about what we do

What We Offer

Our creative and experienced team provides flexible, customer-focused service and delivers innovative products engineered and manufactured to last.

Our range of navigational buoys and pile caps supplied to Ports of Auckland, Auckland Harbourmaster and Northland Regional Council is a testament to the quality and durability of our products.

How We Do It

We pride ourselves in solving problems innovatively and quickly and can mould products up to 2.7 metres length.

Our range of eight bi-axial machines provides capacity for rapid turn around times when you need quality products fast.
We also machine and assemble to provide you with a quality finished product.

"Portstar has been an integral part of our business for almost 20 years and over that time our demand on them has steadily increased. We value the input Portstar has given us with regard to the impact our designs will have on mould making and product manufacturing times. Portstar understand the unique demands of our business and are willing to assist wherever they can. The product quality and dedicated deliveries to our warehouse in East Tamaki make getting product to market that much easier. We appreciate the working relationship we have with Mark and the team and look forward to many more years working together."
TransNet NZ Ltd
Operations Manager
“Our organisation has been using Aids to Navigation supplied by Portstar plastics for the last 10 years. The company are easy to deal with and are able to develop and customise equipment for your individual requirements or customise a piece for a special location or project. We have always found the product to be reliable, durable and delivered on time to meet our deadlines. We look forward to continuing our relationship and continued use of these products in the future.”




Northland Regional Council
Maritime Manager
“Portstar have been one of our key suppliers for many years. Over the years we have worked closely together, including having Portstars input into our R&D program as we have developed and improved our products. Portstars communication and service is very good which is very essential in maintaining a great long-term working relationship. The team have always been flexible with production, so we have the product we need to meet our outgoing orders.”





Waterflow New Zealand Ltd
Head of Operations
“Our company has been dealing with Portstar Plastics now for many years and find them a very valuable supplier to our company. Mark and his team are great to deal with and willing to help wherever they can. This includes extra effort to meet deadlines and advise on designing and mould making requirements. We appreciate our working relationship with Portstar as we continue forward and would be very glad to recommend them for any rotomoulding requirements.”





Ag-Tech Industries Ltd
Manager

World Class Service
By Local Experts.

2100

PRODUCTS PER MONTH

64

CYCLE PER DAY

44

YEARS OF EXPERIENCE