OPaL HDPE Opalene Y5808

OPaL HDPE Opalene Y5808 is a natural‑colored high density polyethylene (HDPE) raffia grade from ONGC Petro additions Limited (OPaL), produced using Mitsui CX slurry polymerization technology. It is designed for raffia extrusion and weaving operations that convert resin into stretched tapes and then into woven fabrics—especially woven sacks and tarpaulin‑type sheets used in industrial and agricultural bulk packaging.

OPaL positions Y5808 around two outcomes that matter most to sack and tarpaulin converters: high tear strength and excellent processability on high‑speed tape lines. In practical terms, that means stable tape extrusion, good drawability for orientation, and a stiffness/strength balance that helps woven‑sack walls resist tearing, puncture, and abrasion during filling, handling, transport, and storage.

The referenced TDS‑style documentation also includes explicit “food‑contact‑type” compliance statements, citing IS 10146:1982 and IS 10141:1982 (as stated in the sheet) and referencing FDA 21 CFR 177.1520 for olefin polymers—useful for buyers who require documented regulatory positioning for packaging‑adjacent applications.

Technical insights (what buyers evaluate and what it indicates)

Y5808 is typically evaluated by engineers through a small set of datasheet properties that correlate strongly with tape quality, weaving performance, and end‑use durability.

Melt Flow Index (MFI): Typical MFI is 0.80 g/10 min (190°C/2.16 kg). For raffia and stretchedtape extrusion, this melt flow range is commonly associated with smooth extrusion, good tape formation, and efficient processing on highspeed lines—while still supporting orientation during stretching.

Density: Typical density is 0.958 g/cm³. Higher HDPE density generally supports higher stiffness and stronger woven structures, which can translate into better abrasion resistance and improved sack “body” (shape retention) compared with lowerdensity alternatives.

Tensile strength: Typical tensile strength at yield is 25 MPa, and tensile strength at break is 38 MPa. In woven sacks and tarpaulin fabrics, tensile performance is a key indicator for load‑bearing capability and resistance to tearing under tension during handling and stacking.

Elongation: Typical elongation at break is 10% (per the referenced test condition). Lower elongation values can align with a stiffer, more dimensionally stable tape/fabric behavior—often preferred in woven sacks where excessive stretch can reduce stack stability.

Impact strength: Typical notched Izod impact strength is 400 J/m (23°C), supporting toughness in applications where sacks and tarpaulins face drops, knocks, and repeated handling.

Flexural modulus: Typical flexural modulus is 1200 MPa, indicating a relatively stiff HDPE profile. This is relevant for woven sacks and tarpaulin where converters often want a stronger, more rigid woven fabric that resists deformation.

ESCR: Typical ESCR (F50, 10% Igepal, ASTM D1693B) is 90 hours. This is a useful comparative metric for stress‑cracking resistance, but Y5808 is positioned primarily for woven‑sack/tarpaulin conversion rather than long‑term pressure‑pipe or aggressive chemical containment.

Vicat softening point: Typical Vicat softening point (10 N) is 122°C, supporting performance in warm storage/transport environments and helping maintain stiffness under moderate heat exposure.

Processing guidance: The recommended processing temperature range is 200–240°C (per the referenced TDS‑style sheet), consistent with common HDPE raffia processing windows.

Applications

Woven sacks for fertilizer, food grains, cement, and industrial chemicals

Y5808 is recommended for woven‑sack production where converters need high tear strength and robust woven fabric performance. It is commonly positioned for bulk packaging sacks used in demanding supply chains—where abrasion, puncture risk, and rough handling can cause failures in lower‑strength fabrics.

Tarpaulin fabrics for industrial and agricultural covering

For tarpaulin‑type woven fabrics, Y5808 supports the stiffness and strength profile that helps tarps hold shape, resist tearing, and tolerate repeated folding/unfolding. Converters typically value stable tape extrusion and consistent weaving behavior to maintain uniform fabric quality.

Stretched tapes for downstream woven fabric conversion

Y5808 is also used directly for stretched‑tape production feeding weaving lines. Its MFI and stiffness profile are aligned with high‑speed raffia extrusion where tape consistency and draw stability influence loom efficiency and final fabric strength.

Comparable alternatives (positioning without claiming equivalence)

Comparable HDPE raffia grades are available in India, including OPaL’s own raffia portfolio (for example, grades positioned for different raffia end uses) and similar “raffia” grades from other producers.

However, direct equivalence to Y5808 should not be assumed unless you match manufacturer datasheets and validate on your line. As positioned in the provided references, Y5808 is tuned for woven sacks and tarpaulin, which typically prioritizes a stiffness/strength profile (density and flexural modulus) plus tape processability. If an alternative grade differs meaningfully in MFI (flow), density (stiffness), ESCR (stress cracking), or tensile/impact balance, it may shift performance toward other raffia products (e.g., different tape draw ratios, different fabric “hand feel,” or different tear/abrasion behavior).

For substitution decisions, the most practical comparison is to shortlist alternatives with similar MFI ~0.8 and similarly high density/modulus, then confirm tape quality, draw stability, and fabric tear performance through trials.

Common search variants

Also searched as: Opalene Y5808, Opal HDPE Y5808, HDPE Y5808 raffia, Y5808 0.80 MFI, HDPE woven sack grade, HDPE raffia dana.

Common misspellings/variants: Opal Y5808, Y 5808, Opalene‑HD Y5808, Y5808 HD.