Celcon® UV90Z

About
Celcon® UV90Z is an integrally colored nominal 9 melt flow rate based acetal copolymer material stabilized for use where ultraviolet radiation exposure is to be encountered. The material is formulated to prevent discoloration, fading, chalking and mechanical property change in severe ultraviolet exposure. This product is available in many colors formulated for the interior automotive market and other applications.&&

Product Description
SupplierCelanese
GenericCopolymer Polyformaldehyde
Material StatusCommercial: Active
FeaturesWeather resistance is good
AvailabilitysNorth America,Latin America,Asia Pacific

Technical Data
PHYSICALNominal valueUnitTest method
Density1.41g/cm³ASTM D792
Density1.41g/cm³ISO 1183
Melt Volume Rate
190℃,2.16 kg8.00cm³/10minISO 1133
Shrinkage rate ISO 294-4
TD1.8%ASTM D955
MD2.2%ASTM D955
TD1.7%ISO 294-4
MD1.9%ISO 294-4
Water absorption rate
Saturation, 23 ℃0.75%ISO 62
Equilibrium, 23 ℃, 50% RH0.20%ISO 62

MECHANICALNominal valueUnitTest method
Tensile modulus2700MPaISO 527-2/1A/1
tensile strength
Yield, 23 ℃60.7MPaASTM D638
yield64.0MPaISO 527-2/1A/50
Tensile strain
yield9.0%ISO 527-2/1A/50
Bending modulus
23℃2470MPaISO 178

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength
23℃6.0kJ/m²ISO 179/1eA
Charpy Unnotch Impact strength
23℃100kJ/m²ISO 179/1eU
Impact strength of cantilever beam notch
23℃5.7kJ/m²ISO 180-1A

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed110ASTM D648
1.8 MPa, unannealed91.0ISO 75-2/A
0.45 MPa, unannealed155ISO 75-2/B
Melting peak temperature165ASTM D3418
Melting temperature165ISO 11357-3
Linear coefficient of thermal expansion
TD1.2E-41/℃ISO 11359-2
MD1.1E-41/℃ISO 11359-2

Process Conditions
injectionNominal valueUnitTest method
Drying temperature80 to 100°C
Drying time3.0hr
Barrel rear temperature170 to 180°C
Barrel middle temperature180 to 190°C
Barrel front temperature180 to 190°C
Nozzle temperature190 to 200°C
Processing (melt) temperature180 to 200°C
Mold temperature80 to 120°C
Injection pressure60.0 to 120MPa
Injection speedSlow-Moderate 
Hold pressure60.0 to 120MPa
Back pressure0.00 to 4.00MPa

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