Real solutions. Real SABIC's Specialties business LEXAN ™ XHT copolymers. LEXAN ™ XHT copolymers are high heat polycarbonates that provide unmatched high temperature performance coupled with excellent processability and the highest retention of clarity and color stability when exposed to elevated temperatures. The LEXAN™ XHT copolymers portfolio offers grades ranging in heat performance and melt flows to meet your needs without loss in clarity, color stability, or processability. The Chase Plastics' team can assist in selecting the proper LEXAN™ XHT copolymer grade to match the HDT and MVR requirements of each application. LEXAN ™ XHT Copolymers for Automotive Lighting Parts such as lenses, reflectors, and bezels for automotive lighting assemblies require the elevated heat performance that LEXAN™ XHT copolymers were designed to offer. LEXAN™ XHT copolymers also offer improved dimensional stability and outgassing over PBT and better heat performance over standard PC. LEXAN™ XHT copolymers excel in all areas compared to these commonly used automotive lighting materials. LEXAN ™ XHT Resin Portfolio LEXAN TM XHT resins High flow Standard flow 168 160 150 183 174 165 155 145 HDT(°C) 0.45 MPa XHT2171 XHT1171 XHT5141 XHT4141 XHT3141 XHT2141 XHT1141 Grades XHT4143T XHT3143T XHT2143T Transparent XHT3176 XHT2176 XHT5146 XHT3146 XHT2146 Mold Release 39 56 91 17 24 30 43 70 MVR @330°C/2.16kg;ISO1133 Outgassing Dimensional Stability Heat Performance = PBT = Standard PC = LEXAN ™ XHT Copolymers * Please consult a Chase Plastics' representative for grade availability and suitability for your application XHT3171
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Real solutions. Real SABIC's Specialties business LEXAN™ XHT copolymers.LEXAN™ XHT copolymers are high heat polycarbonates that provide unmatched high temperature performance coupled with excellent processability and the highest retention of clarity and color stability when exposed to elevated temperatures.
The LEXAN™ XHT copolymers portfolio offers grades ranging in heat performance and melt flows to meet your needs without loss in clarity, color stability, or processability. The Chase Plastics' team can assist in selecting the proper LEXAN™ XHT copolymer grade to match the HDT and MVR requirements of each application.
LEXAN™ XHT Copolymers for Automotive LightingParts such as lenses, reflectors, and bezels for automotive lighting assemblies require the elevated heat performance that LEXAN™ XHT copolymers were designed to offer. LEXAN™ XHT copolymers also offer improved dimensional stability and outgassing over PBT and better heat performance over standard PC. LEXAN™ XHT copolymers excel in all areas compared to these commonly used automotive lighting materials.
LEXAN™ XHT Resin Portfolio
LEXA
NTM X
HT re
sins
High flow
Standard flow
168
160
150
183
174
165
155
145
HDT(°C) 0.45 MPa
XHT2171
XHT1171
XHT5141
XHT4141
XHT3141
XHT2141
XHT1141
Grades
XHT4143T
XHT3143T
XHT2143T
Transparent
XHT3176
XHT2176
XHT5146
XHT3146
XHT2146
Mold Release
39
56
91
17
24
30
43
70
MVR @330°C/2.16kg;ISO1133
Outgassing
Dimensional Stability
Heat Performance
= PBT
= Standard PC
= LEXAN™ XHT Copolymers
* Please consult a Chase Plastics' representative for grade availability and suitability for your application
XHT3171
LEXAN™ XHT Copolymers Haze Onset PerformanceHaze onset temperature is a commonly used test in the automotive industry to measure the amount of heat resistance in lighting. This test indicates the temperature at which a 3mm opaque metalized plaque shows defects.
LEXAN™ XHT Copolymer High Flow GradesHigher melt flow grades of LEXAN™ XHT copolymers offer the capability of thin wall molding for complex part design and lightweighting along with the ability to utilize lower injection pressures and lower processing temperatures for overall energy savings.
The high flow grades of LEXAN™ XHT copolymers maintain their excellent haze onset temperatures compared to competitive high heat polycarbonate materials, but with improved flowability.
Lightweighting with LEXAN™ XHT CopolymersWith the available high flow portfolio offered, thinner wall sections can be achieved, resulting in weight savings. • Up to 50% weight savings vs
direct metallized PBT • Up to 30% weight savings vs competitive
high heat polycarbonate materials
Design Freedom with LEXAN™ XHT Copolymers• Direct metallizable• Thinner walls achievable• Lower draft angles required• More complex part geometries• Require less complex gating compared
to other high heat polycarbonate materials
The marks identified herein are registered trademarks of their respective owners. Any recommendation by Chase Plastics’ personnel for the use of any material is based on tests or experience believed to be reliable. However, since the final processing and use of the product are beyond our control, we make no warranty as to such use or effects incidental to such use, handling or sale.
© September 2019, Chase Plastic Services, Inc.
6467 Waldon Center Drive • Clarkston, MI 48346248-620-2120 • orders 800-232-4273 • fax 248-620-3192
ChasePlastics.com
Haze Onset Heat Exposure
Tem
pera
ture
(°C
)
210
200
190
180
170
160
150
140
130
120
XHT1
141
XHT2
141
XHT3
141
XHT4
141
XHT5
141
Compe
titive
150°
C PC
Compe
titive
160°
C PC
Compe
titive
170°
C PC
Compe
titive
190°
C PC
HDT at 0.45 MPa
Haze Onset Temperature
High Flow LEXAN™ XHT Copolymer Grades
LEXAN™ XHT Copolymer Grades
Competitive High Heat PC Grades
MVR
330
C / 2
.16K
G / 3
00se
c (c
c/10
')
Haze Onset Temperature (°C)
100
80
70
60
50
40
30
20
10
0
90
145 150 155 160 165 170
Competitive 150°C PC
XHT2141
XHT3141
XHT1171
XHT2171
XHT3171
Competitive 160°C PC
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