1. excellent impact strength under low-temperature conditions 2. excellent long-term weather-resistance.

  HL-52 is an acrylic impact modifier developed by our R&D center. It is used to improve the impact-strength of PVC products with glossy surface. It is recommended for applications such as PVC profile and PVC pipe etc. where good outdoor weathering and low-temperature impact resistance are critical properties.

Items	specs
appearance	white powder
bulk density (g/cm3)	0.45±0.1
volatile matter (%)	≤1.0
particle size (%) (30 mesh passed)	≥99.0
*notched Izod impact strength KJ/M2 (0°C)	21.00
*tensile strength (Mpa)	44.4

* the specs are tested under the following basic formulation

PVC (K-67):      100 phr

CaCO3:          20 phr

Pb stearate:      1.5 phr

Calcium Stearate: 0.7phr

DBLS:          2.5phr

Stearate acid:      0.2 phr

PE wax:          0.15 phr

TIO2:           4 phr

HL-51:          7 phr

ACR for pvc profile