On-Request Grade
Non-UV LLDPE Powder
The same rotomolding powder — identical resin, particle size, melt flow, and lot-by-lot QC — without the UV-stabilizer package. Produced on request for parts that live indoors, underground, or under cover, where you shouldn't pay for protection you don't need.
When to choose it
Same powder. No UV package. Sharper price.
Indoor & covered parts
Underground septic tanks, indoor storage bins, parts inside enclosures — anywhere sunlight never reaches, UV stabilization adds cost without adding life.
Cost-sensitive volume
On high-volume runs of covered parts, removing the stabilizer package is a real per-tonne saving with zero performance penalty in service.
Your own additive strategy
Some molders prefer to run natural powder and dose their own masterbatch. We supply the clean base and the lab data to build on.
Typical Properties
Identical spec — minus the UV package
Typical values, not a sales specification. Produced against confirmed orders with the same per-lot QC as the standard grade.
| Property | Test method | Typical value |
|---|---|---|
| Melt flow index (190 °C / 2.16 kg) | ISO 1133 | 3.5 – 6.0 g/10 min |
| Density (compound) | ISO 1183 | 0.935 – 0.945 g/cm³ |
| Particle size | ASTM D1921 | ≤ 500 µm (35 mesh), ≥ 95 % passing |
| Dry flow | ASTM D1895 | ≤ 28 s / 100 g |
| Bulk density | ASTM D1895 | 0.32 – 0.40 g/cm³ |
| UV stabilization | — | None — natural compound, by request |
| ESCR (F50, 10 % Igepal) | ASTM D1693 | > 1,000 h |
| Low-temperature impact (−40 °C, 6 mm) | ARM falling dart | Pass, ≥ 60 J |
A straight answer before you order
Non-UV powder is not suitable for parts exposed to direct sunlight — unprotected polyethylene will fade and embrittle outdoors. If your part sees the sky, choose the UV-stabilized grade. Not sure which applies? Describe the application in your inquiry and we'll tell you honestly.
Ready to spec your run?
Tell us the part, volume, and target color — we'll confirm lead time and send a sample with the lot's lab report.