UVCHEM MB R18 product photo

UVCHEM MB R18

UVCHEM MB R18 is a high-performance UV stabilizer masterbatch, designed for use in raffia and woven fabric applications. Contains a synergistic blend of Hindered Amine Light Stabilizers (HALS) and UV absorbers optimized for long-term resistance against photo-oxidation.

  • PP raffia tapes and woven sacks
  • Outdoor storage and construction fabrics
DOWNLOAD DATA SHEET

Polypropylene raffia tapes and woven sacks Agricultural and industrial packaging fabrics PP monofilaments and ropes Outdoor storage and construction fabrics

Excellent long-term UV resistance and color stability Maintains tensile and elongation properties during outdoor exposure Low volatility and no interference with slip or antiblock additives

Add 1.0 wt.% UVCHEM MB R18 to the polypropylene base resin. For outdoor applications, dosage can be increased up to 1.5–2.0 wt.%.

UVCHEM MB R18 is supplied in standard pellet form packed in 25 kg bags.

Store ≤40°C, dry, away from direct sunlight. Process within 12 months.

PropertyTest MethodUnitTypical Value
Appearance
Visual
Off-white to light beige
Active Content
-
wt.%
20 ± 2
Melt Flow Index (230 °C / 2.16 kg)
ASTM D1238
g/10 min
7 – 9
Density
ASTM D792
g/cm³
0.91
Volatile Matter (2 h @ 220 °C)
TGA
wt.%
< 1
Thermal Stability (5% weight loss)
TGA
°C
> 280
UV protection efficiency
ASTM D4329
-
> 90% retention of tensile strength after 500 h QUV