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Siplast Roofs

SBS mod bit tensile elongation testing

Revolutionizing Roofing with SBS-Modified Bitumen

Siplast stands out when it comes to SBS-modified bitumen roof system performance. The Siplast story of uncompromising quality and commitment to our customers begins over half a century ago with an innovation that would change the commercial roofing and waterproofing industry. In the late 1960s, Siplast Research and Development, working in conjunction with Shell Chemical of Europe, developed SBS (styrene-butadiene-styrene) modified bitumens. We found that by properly modifying asphalt with styrene-butadiene-styrene (SBS), we could produce a highly durable elastomeric blend with exceptional elongation/recovery properties over a wide range of temperatures.