Hostaform® LX90Z XAP² ™

About
Preliminary Data Sheet Hostaform® acetal copolymer grade LX90Z XAP2 TM is UV stabilized material available in a range of molded in metallic colors generally for automotive interior applications. In addition, Hostaform® LX90Z XAP2 TM has lower volatile emissions as required for some automotive interiors. Besides material, optimal finish for specialty metallic parts is dependent on proper drying, gate design, knit line locations, and special processing. Please contact Celanese Technical Service for assistance with your application. Low Emission Performance [VDA-275] <5 PPM&&

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

Technical Data
PHYSICALNominal valueUnitTest method
Density1.43g/cm³ISO 1183
Melt Volume Rate
190℃,2.16 kg8.00cm³/10minISO 1133
Shrinkage rate ISO 294-4
TD1.4%ISO 294-4
MD2.3%ISO 294-4
Water absorption rate
Saturation, 23 ℃0.75%ISO 62

MECHANICALNominal valueUnitTest method
Tensile modulus2700MPaISO 527-2/1A/1
tensile strength
yield54.0MPaISO 527-2/1A/50
Tensile strain
yield8.0%ISO 527-2/1A/50
Bending modulus
23℃2900MPaISO 178

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength ISO 179/1eA
-30℃4.0kJ/m²ISO 179/1eA
23℃4.0kJ/m²ISO 179/1eA

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed90.0ISO 75-2/A
0.45 MPa, unannealed147ISO 75-2/B
Melting temperature166ISO 11357-3
Linear coefficient of thermal expansion
TD1.0E-41/℃ISO 11359-2
MD9.0E-51/℃ISO 11359-2

Process Conditions
injectionNominal valueUnitTest method
Drying temperature105 to 110°C
Drying time3.0hr
Barrel rear temperature170 to 175°C
Barrel middle temperature170 to 180°C
Barrel front temperature175 to 185°C
Nozzle temperature185 to 195°C
Processing (melt) temperature180 to 195°C
Mold temperature80 to 105°C
Injection pressure60.0 to 120MPa
Injection speedSlow 
Hold pressure60.0 to 120MPa
Back pressure0.00 to 4.00MPa

Notes
1. Typical properties: these are not to be construed as specifications.
2. 10°C/min
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