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Exaflex® SBS 7090 — Linear Styrene-Butadiene-Styrene Block Copolymer for PMB

Exaflex® SBS 7090 is a linear thermoplastic styrene-butadiene-styrene block copolymer produced in-house by Material Wizard, optimized for the production of polymer-modified bitumen binders (PMB) for road construction. With a nominal butadiene/styrene ratio of ≈ 70/30, its linear macromolecular architecture provides better compatibility with bitumen and a finer dispersion than radial SBS rubbers.

It yields PMB grades 25/55-55, 45/80-65 and 75/130-65 per DSTU EN 14023:2023 and polymer-modified bitumen per DSTU B V.2.7-135:2014 at a typical dosage of 3.0–6.0 wt% based on BND 50/70 or BND 70/100 bitumen.

Applications

  • Polymer-modified bitumen binders (PMB) for asphalt concrete and wearing courses
  • Bitumen-polymer roll roofing materials (Euroroofing membranes)
  • Road sealants per DSTU B V.2.7-136
  • Hot-applied waterproofing compounds (bridge decks, tunnels)
  • Contact and solvent-based adhesives (footwear production, contact adhesives for furniture)
  • Polyolefin modification — improved impact resistance at low temperatures

Supply form

Powder or pellets, white to cream in color, with anti-blocking dusting. Packaging — 15 kg bags (paper-polymer with a PE liner) or 600 kg pallets (40 bags × 15 kg on a wooden EUR pallet, shrink-wrapped). Storage — dry enclosed premises, –20…+40 °C, relative humidity ≤ 70 %. Shelf life — 24 months.

Minimum order quantity — 1 bag (15 kg) or 1 pallet (600 kg). Standard full-truck load — 20 tonnes. Shipped from our warehouse in Derazhnia (Khmelnytskyi region). Samples of 1–5 kg are provided free of charge for laboratory testing.

Each batch is accompanied by a certificate of analysis (CoA). SDS available on request. For technical advice on selecting the right SBS for your base bitumen, call +38 050 323-23-21 or email yyekimov@gmail.com.

Exaflex® SBS 7090 — Linear Styrene-Butadiene-Styrene Block Copolymer for PMB
Typical physical and mechanical properties:
parameter
unit
value
Bound styrene
wt%
30 ± 2 (ASTM D5775 / FTIR)
Diblock content
wt%
15–18 (GPC)
Molecular architecture
Linear (S-B-S)
Density
g/cm³
0,94 (ISO 1183)
Tensile strength
MPa
≥ 16 (ISO 37, тип 1)
Elongation at break
%
≥ 800 (ISO 37)
Modulus at 300 % elongation
MPa
≥ 1,4 (ISO 37)
Shore A hardness
68–72 (ISO 868)
Melt flow rate (MFR, 200 °C / 5 kg)
g/10 min
0,1–0,5 (ISO 1133)
Residual volatiles
wt%
≤ 0,7 (ISO 247)
Ash content
wt%
≤ 0,2 (ISO 247)
Viscosity, 5 % solution in toluene (25 °C)
mPa·s
30–50 (Brookfield)
Typical dosage in bitumen:
PMB class
dosage
base bitumen
PMB 45/80-65 (БМП 60/90-52)
3,0–4,0 wt%
БНД 70/100
PMB 25/55-65
4,0–5,0 wt%
БНД 50/70
PMB 25/55-75 / PMB 10/40-65
5,5–6,5 wt%
БНД 35/50
Указанные показатели измеряются по внутренним методикам, близким к соответствующим ISO, ГОСТ Информация носит ознакомительный характер, рекомендуем использовать техническую информацию после согласования с поставщиком и подписания нормативно-технической спецификации