SIR CV 60 Constant Viscosity TSR
Constant-viscosity Indonesian TSR with PRI at or above 60 and Mooney ML 60 plus or minus 5 for industrial mixing.
- Constant viscosity designation on every export COA
- PRI at or above 60 for oxidative stability
- Industrial grade for belting, rollers, and moulded goods
- Milled to order with three to four week lead time
Product overview
SIR CV is produced for industrial compounders who need Mooney viscosity inside a narrow band across lots. PRI is at or above 60 and Mooney ML (1+4) at 100 °C is held at 60 plus or minus 5 with constant viscosity noted on the COA. Production is scheduled with three to four week lead time.
Constant viscosity processing
Mooney ML (1+4) at 100 °C is controlled at 60 plus or minus 5 with the constant-viscosity mark on the specification sheet. Dirt at or below 0.10% and ash at or below 0.75%. PRI at or above 60 supports long warehouse holds.
Industrial applications
Conveyor belting, rubber rollers, engineered mouldings, and adhesive masterbatches where automated lines cannot tolerate Mooney drift. Not a tire volume grade; choose SIR 20 for bulk tire supply.
Scheduling and MOQ
19.6 MT per 20 ft container, 35 kg bales on shrink-wrapped pallets. Lead time three to four weeks because CV bales are scheduled against confirmed orders. Quarterly contracts help secure production slots.
Frequently asked questions
Ordering, samples, shipping, and payment, answered by our export desk.
What does constant viscosity mean on this SIR CV 60 product?
Mooney ML (1+4) at 100 °C is held at 60 plus or minus 5 lot to lot with constant viscosity printed on the COA. This narrows the band compared with standard SIR 20 at Mooney 65 plus or minus 5.
Why is PRI at or above 60 on SIR CV industrial TSR?
Higher PRI supports oxidative stability during long storage and multi-shift mixing campaigns typical in industrial plants. Tire-grade SIR 20 requires PRI at or above 50; SIR CV raises the floor for processing grades.
Why does SIR CV 60 need three to four weeks lead time?
CV bales are milled to scheduled production rather than pulled from open stock. Book quarterly volumes to align arrivals with your production calendar and reduce scheduling gaps.
Which industrial lines should specify SIR CV instead of SIR 20 TSR?
Automated belting, roller, and moulding lines where Mooney drift triggers SPC alarms. SIR CV is an industrial processing grade; tire plants needing volume should stay on SIR 20.
Interested in this product?
Send us your destination port and volume, we'll reply with pricing and availability.
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