SIR 5 Premium Light TSR

Ultra-clean coagulum TSR with dirt at or below 0.05%, PRI at or above 60, Lovibond colour index at or below 6.

Dirt at or below 0.05%, PRI at or above 60
Lovibond colour index at or below 6 for light-color tread
Premium light coagulum grade between SIR 3L and SIR 10
35 kg shrink-wrapped bales, 19.6 MT FCL

Product overview

SIR 5 is a premium light coagulum TSR grade between SIR 3L field-latex lots and SIR 10 volume premium tread. Dirt content is at or below 0.05%, ash at or below 0.60%, PRI at or above 60, and Lovibond colour is held at or below 6 per SNI 1903. Same 35 kg bale format and 19.6 MT container MOQ as other Indonesian TSR exports.

Premium SNI 1903 limits

Dirt at or below 0.05%, ash at or below 0.60%, volatile matter at or below 0.80%, nitrogen at or below 0.60%, PRI at or above 60, Lovibond colour index at or below 6. Out-of-spec bales are segregated before export release.

Premium tread and light-color compounds

Passenger tread and sidewall lines that need cleaner rubber than SIR 10 without field-latex scheduling. Specialty industrial goods with tight dirt limits also specify SIR 5 when color and PRI matter.

Scheduling and MOQ

19.6 MT per 20 ft container on shrink-wrapped 35 kg bales. Lead time three to four weeks FOB Jakarta or Belawan on scheduled mill campaigns. Standing contracts help secure production slots.

Frequently asked questions

Ordering, samples, shipping, and payment, answered by our export desk.

What PRI minimum is published for SIR 5 premium light TSR?

PRI at or above 60 on the pre-shipment COA, tested per SNI 1903 methods. Higher than SIR 10 and SIR 20 at 50, supporting premium tread oxidative stability.

What Lovibond colour limit applies to SIR 5 light TSR?

Lovibond colour index at or below 6 on the individual reading, per SNI 1903 SIR 5 tables. Colour is the primary grade control for this light coagulum TSR rather than a Mooney target.

What minimum order applies to SIR 5 export containers?

19.6 MT in one 20 ft FCL, 560 bales of 35 kg. Lead time is three to four weeks FOB Jakarta or Belawan on scheduled production.

How does SIR 5 differ from SIR 10 on this product page?

SIR 5 holds dirt at or below 0.05% with PRI at or above 60 and Lovibond at or below 6. SIR 10 allows dirt at or below 0.10% with PRI at or above 50 and Mooney near 61. SIR 5 is the cleaner light-color coagulum grade.