Nynas news

03/01/2014 13:40

A roof over your head

With the right kind of bitumen, it’s possible to avoid expensive, complex roof renovations. Nynas is one of the leading suppliers.

The roof is the most exposed part of a building. Rain, wind, snow and ice, as well as hot sunny days, can all subject the material to extremely tough stresses. 

To prevent moisture from penetrating the structure of the roof, and also to guarantee a strong resistance to mechanical wear, builders use roofing felt, or to give it its proper name: roofing membrane. 

A roofing membrane contains limestone filler and bitumen. The proportion of bitumen is very high, 65-70%, in contrast to asphalt, where the proportion is around 5-6%. Furthermore, a relatively rigid, hard bitumen is used with especially tough demands to withstand, for example, ageing, high temperatures and fire. 

Polymers are now usually added to the bitumen used to manufacture roofing membrane. The advantage is that the polymer modification enhances the elasticity at both low and high temperatures, creates greater splice strength and also makes it possible to use softer bitumen, which improves the thermal properties.

Nynas has developed a product – Nytop 210 – that is being used by many leading roofing membrane manufacturers all over Europe in their production.

Further reading

Turnaround in Nynäshamn

NYNÄSHAMN, SWEDEN, 9 MAY, 9:45 AM: Shift Manager Fredrik Svensson tops up the hot oil that is used to heat the oil supply in the HT2 hydrogenation plant ahead of the start-up after this spring’s turnaround at the refinery in Nynäshamn.

Read more about Turnaround in Nynäshamn

The brains of Nynas: Stina Wiqvist

Stina started at Nynas as Supply Chain planner EMEA after graduating from Linköping University with a Master of Science in Industrial Engineering and Management in 2007. She moved on to roles as Supply Chain Analyst, Contract Manager Supply Chain, and Planning Manager Supply Chain. Since December 2016, Stina has been Head of Supply Chain EMEA. Find out what's on her mind.

Read more about The brains of Nynas: Stina Wiqvist

Producers choose Nynas NYTEX® oils to boost polyurethane polymers

NYNAS® has developed a series of NYTEX® process oils to improve the performance of polyurethane polymers used in plastics and resins, offering cost efficiency and enhancing a range of everyday products that are found all around us.

Read more about Producers choose Nynas NYTEX® oils to boost polyurethane polymers