Cheaper and quicker


  • Focus
  • Monday, 16 May 2016

Chang and his Roxsil AAC Wall System products.

Winson Chang says his Roxsil AAC Wall System products can help speed up construction time, as well as bring costs down, reports LIM WING HOOI.

GRAND ideas are, well, grand, but in order to effectively implement the steps required and get the desired results, you must pay attention to the little details.

After all, a small leak will sink a great ship, and that’s the philosophy on which Winson Chang Chong Fook, 58, founded his company, Roxsil Silicone.

Chang, who is also the company’s technical manager, says his company manufactures construction products used with autoclaved aerated concrete blocks (AAC) such as water-proofing material, leveling filler, water plug, skim coats, adhesives and others. He describes his products as Roxsil AAC Wall System which is aimed at preventing seeps and cracks.

“I saw the shortage of affordable homes for the masses, and I had a burning desire to find a solution to concrete blocks that faced water seeping and cracking.

“We focus on selling the total installation system and licensing for export purposes,” says Chang, who believes his products can also help speed up construction work that adopt the industrialised building block (IBS) system using pre-fabricated parts.

Using AAC blocks is supposed to be more efficient, enabling construction workers to build a house much more quickly and at a lower cost, but it doesn’t always work out that way.

“An AAC block is about the size of eight pieces of clay bricks. Theoretically, buildings using them should be constructed eight times faster, but with the current installation method, it’s not achievable,” Chang says.

This is because construction workers still spend a lot of time mixing the materials needed to bond the AAC blocks together. They may use up to seven equipment, including brick trovel and mixer, to do this. Sometimes, they also need scaffolding for these equipment.

But Chang’s products take care of this problem. They are as simple to use as toothpaste. Just spread his adhesives, for instance, on the AACs, and they will bond. not to mention the fact that it also addresses issues like water seeping and cracking.

Roxsil Silicone was founded in July 2015, after 10 years of research and trials. Chang says he also engaged a local university to do preliminary tests of his products to ensure he got them right.

Chang, who had been manufacturing breathable silicone-based paint prior to that, said it was only after he had confidence in his products that he started Roxsil with RM3mil pooled from investors. They currently operate out of a 5,000 sq ft factory in Perindustrian Tekno Jelutong, Shah Alam with 25 workers.

To date, they have done five projects using their wall system, including a warehouse, a college and some bungalows, as a way of demonstrating the effectiveness of their products.

Moving forward, Chang says he will demonstate how a 600 sq ft single-storey terrace house can be built at a cost of just RM20,000 in Terengganu this year.


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