Diakon® LH752

About
Diakon® LH752 is a Polymethyl Methacrylate Acrylic material. It is available in Europe for injection molding. Primary attribute of Diakon® LH752: Flame Rated.&&

Product Description
SupplierLucite
GenericPMMA
Material StatusCommercial: Active
FeaturesHB
AvailabilitysEurope
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.18g/cm³ISO 1183
Melt Flow Rate1.6g/10minISO 1133
Shrinkage rate0.40 to 0.70%
Water absorption rate
Equilibrium, 23 ℃, 50% RH0.30%ISO 62
Particle size600µmInternal Method

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength2.0kJ/m²ISO 179-1eA
Charpy Unnotch Impact strength20kJ/m²ISO 179/1eU
Impact strength of cantilever beam notch1.9kJ/m²ISO 180-1A

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed97.0ISO 75-2/A
0.45 MPa, unannealed101ISO 75-2/B
Vicat Softening Temp 
110ISO 306/A
104ISO 306/B
Linear coefficient of thermal expansion
MD7.1E-51/℃ASTM D696

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame retardant levelHB UL 94
Igniting temperature of the hot wire650IEC 60695-2-13

optical performanceNominal valueUnitTest method
Refractive index1.490 ISO 489
Transmittance92.0%ASTM D1003
Haze0.40%ASTM D1003

MECHANICALNominal valueUnitTest method
tensile strength
yield83.0MPaISO 527-2
Tensile strain
yield5.0%ISO 527-2
Bending modulus3200MPaISO 178
bending strength115MPaISO 178
Rockwell hardness
M-level92 ISO 2039-2
Ball hardness185MPaISO 2039-1

Process Conditions
injectionNominal valueUnitTest method
Hopper temperature50 to 80°C
Barrel rear temperature190 to 240°C
Barrel middle temperature220 to 270°C
Barrel front temperature230 to 290°C
Nozzle temperature230 to 280°C
Mold temperature50 to 90°C

Notes
1. Typical properties: these are not to be construed as specifications.
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