NAS Polymers CC
Building Material Suppliers in Cape Town

Company Profile

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NAS Polymers was established in 2009 for the purpose to manufacture Polymer Concrete Manhole Covers and Frames for the South African and Sub Saharan Africa Market. NAS Polymers is a Close Corporation Registered in South Africa “Reg no: 2009/207244/23. Our vision is to become the leading Manufacturer of Polymer Concrete Manhole Covers in South Africa and Sub Saharan Africa. Our mission is to:

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Empower the communities by job creation

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Create prosperity for my partners and shareholders

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To create a spirit of Ubuntu
Introduction

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The manhole cover and frame industry are still been dominated by “cast iron” manufacturers. This has been beneficial to the consumers as cast iron can last a lifetime. However, there has always been the problem of theft as cast iron has recycle value. Unfortunately, it has presented the Councils and Municipalities with certain problems, namely:

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the cost of replacing stolen covers

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claims from the general public caused by personal injury or property damage resulting from open manholes

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And injury to workers caused by the weight of cast iron covers and frames.

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A solution to the theft problem is Polymer, which is a mixture of Resin, Sand and Fibers. This material it light weight and has no recycle value minimizes theft.

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We at NAS Polymers have done extensive tests on Polymer and have

come up with a formula to ensure our products are durable and strong.

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In order for this to be achieved the product was specifically designed to focus on key principles – job creation, quality, cost effectiveness, training and technical support

Benefits of Polymer Concrete

POLYMER CONCRETE is a combination of Polyester Resin, combined with Fillers and reinforced with fibreglass strands. This combination is mixed, moulded and cured resulting in a strong and durable material.

This product has been used successfully in various other applications. NAS Polymers has done extensive research in perfecting the formula to ensure the success of it’s’ use in the production of Manhole Covers and Frames.

Strength in tension, compression and flexibility are ± 3 – 5 times higher in products made from polymer than in similar products made from conventional concrete.

In the production of Manhole Covers and Frames, tests have shown that:

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Polymer is more resistant to corrosion than cast iron.

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The strength of Polymer is unaffected by exposure to oil, diesel or petrol.

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Polymer concrete displays low water absorption.

Advantages are as follows:

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Due to the fact that there is NO SCRAP VALUE to polymer (it cannot be recycled) theft is minimized.

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Damage claims resulting from the theft of manhole covers is reduced.

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Polymer is by far easier to handle than cast iron. Therefore injuries caused to workers are minimized.

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Polymer can be pigmented in various colours to suite customer needs.

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Polymer is lighter in weight than cast iron. This reduces the cost of transport.

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Company names or order numbers can be moulded into the cover.

Disadvantages are few:

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Exposure to high concentrations of acids or alkalis on a regular basis, can compromise the strength of polymer.

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Polymer products are not suitable where CONTINUOUS immersion is a requirement.

Prefabricated