Our Company

ISO Moulders specialise in manufacturing quality EPS and supply a large and diverse customer base from large appliance manufacturers to the agricultural and construction industries.

About us

National Operations

ISO Moulders is a division of Southey Holdings (Pty)Ltd and is the largest EPS converter in Southern Africa. ISO Moulders has a national footprint with factories located in Durban, Johannesburg, Cape Town, Ladysmith and the KZN North Coast. Other Branches >

Polystyrene Experts

We are experts in white goods packaging, seed trays and cooler boxes, as well as cut to spec EPS products, such as insulation, cut sheet, and a variety of construction solutions including cornices, void formers and panels.


The ISO Moulders management team has years of experience as a leader in EPS. We believe strongly in sustainable practices and are constantly looking at advancements in
the field which will contribute to reducing our carbon footprint and that of our customers. Our passion is providing our customers with exceptional service. Learn More >

Company Timeline

1990Isolite Holdings established in Pinetown.
1999Addition of shape moulding under Isolite Moulding KZN.
2001Isithebe Factory opened for production.
2003Ezakheni Factory opened for production.
2007Pinetown Factory relocated to Jacobs.
2012Isolite KZN acquired by Southey Holdings.
Name changed to ISO Moulders.
2018Booysens Factory opened for production.
First EPP capable machine acquired for Jacobs.
2019Atlantis Factory opened for production.
2020Jacobs Factory redevelopment completed.