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.
RECOMMENDED DRYING CONDITIONS |
HYGRO- |
ACRONYM OR |
RECOMMENDED |
|
*REGISTERED |
SCOPIC |
COMMON NAME |
(HRS) |
(F) |
NOTES |
CHEMICAL DESCRIPTION |
TRADE NAME(S) |
YES |
ABS
(molding grade) |
2-3 |
190-200 |
1,2 |
Acrylonitrile-Butadiene-Styrene
Terpolymer |
Cycolac
(2) Lustran(13) |
YES |
ABS
(extrusion grade) |
3-4 |
180-200 |
1,2 |
Acrylonitrile-Butadiene-Styrene
Terpolymer |
Cycolac
(2) Lustran(13) |
YES |
ABS/PC |
2-4 |
175-220 |
1,2,3 |
ABS/Polycarbonate
alloy |
Cycolac
(2) Lustran(13) |
YES |
ABS/PVC |
2-3 |
160-170 |
1,2 |
ABS/PVC
alloy |
Cycolac
(2) Lustran(13) |
YES |
Acetal
(copolymer) |
2-3 |
200-220 |
1,2 |
Acetal
Resin |
Celcon(3) |
NO |
Acetal
(homopolymer) |
1-2 |
200-220 |
1,2 |
Acetal
Resin |
Delrin(5) |
YES |
Acrylic |
2-3 |
170-190 |
1 |
Also
Known as Methyl Methacrylate |
Lucite(5)
Plexiglas(16) |
YES |
CA
(acetate) |
2-3 |
160-180 |
1,4 |
Cellulose
Acetate |
Tenite0
(6) |
YES |
CAB
(butyrate) |
2-3 |
160-180 |
1,4 |
Cellulose
Acetate/Butyrate |
Tenite200
(6) |
YES |
CAP
(propionate) |
2-3 |
160-180 |
1,4 |
Cellulose
Acetate/Propionate |
Tenite300
(6) |
NO |
HDPE |
1-2 |
160-180 |
1,2 |
High
Density (linear) Polyethylene |
various |
YES |
HDPE
w/max. 3% black |
3-4 |
160-180 |
1,2 |
High
Density (linear) Polyethylene |
various |
YES |
HDPE
w/max. 40% black |
4-5 |
160-180 |
1,2 |
High
Density (linear) Polyethylene |
various |
YES |
Ionomer |
7-8 |
150-160 |
1,2 |
Ionomer
Resin |
Surlyn
(5) |
YES |
LCP |
3-4 |
300-310 |
1,2,3 |
Liquid
Crystal Polymer (Aromatic Polyester) |
Zenite
(5) Vectra (3) |
NO |
LDPE |
1-2 |
160-180 |
1,2 |
Low
Density (conventional) Polyethylene |
various |
YES |
LDPE
w/max. 3% black |
3-4 |
160-180 |
1,2 |
Low
Density (conventional) Polyethylene |
various |
YES |
LDPE
w/max. 40% black |
4-5 |
160-180 |
1,2 |
Low
Density (conventional) Polyethylene |
various |
YES |
Nitrile |
5-6 |
160-180 |
1 |
Acrylonitrile
terpolymer |
Barex
(17) |
YES |
Nylon
6,6/6, 612 |
5-6 |
160-180 |
1,2,5 |
Crystalline
Nylon (Caprolactan) |
Zytel
(5) Capron (22) |
YES |
Nylon
(amorphous) |
4-5 |
170-180 |
1,2,5 |
Super
Tough Nylon |
Zytel
ST (5) |
YES |
Nylon
(transparent) |
4-5 |
180-190 |
1,5 |
Transparent
Nylon |
Zytel
330 (5) |
YES |
PBT |
2-3 |
250-270 |
1,2,3,5 |
Polybutylene-Terephthalate |
Celanex
(3) Valox 420 (8) |
YES |
PBT/PET |
4-5 |
350-370 |
1,2,3 |
PBT/PET
alloy |
Valox
815 (8) |
YES |
PC |
3-4 |
250-270 |
1,2,3 |
Polycarbonate |
Lexan
(8) Merlon (12) |
YES |
PC/PBT/E |
3-4 |
250-270 |
1,3 |
Polycarbonate/PBT/Elastomer
alloy |
Xenoy
(8) |
YES |
PCS |
2-3 |
220-230 |
1 |
Polycarbonate-Styrene
copolymer |
Arloy
(1) Cycoloy (2) |
YES |
PCTA |
3-4 |
160-180 |
1 |
Cyclohexan-Terephthalate
copolymer |
Kodapak
(6) |
YES |
PEEK |
3-4 |
300-320 |
1,2,3 |
Polyetheretherketone |
Lubricom
(20) |
YES |
PEM |
4-5 |
300-320 |
1,2,3 |
Polyerherimide |
Ultem
(8) |
YES |
PES |
3-4 |
300-320 |
1,2,3 |
Polyethersulfone |
PES
(24) |
YES |
PET |
4-5 |
320-350 |
1,2,3 |
Polyethylene-Terephthalate
(Thermoplastics Polyester) |
Valox
7&800 (8) |
YES |
PET
(Rynite) |
3-4 |
270-280 |
1,2,3 |
Polyethylene-Terephthalate
(Thermoplastics Polyester) |
Rynite
(5) |
YES |
PET
(beverage bottles) |
5-6 |
340-350 |
1,2,3 |
Polyethylene-Terephthalate
(Thermoplastics Polyester) |
Kodapak
(6) |
YES |
PETG |
3-4 |
140-150 |
1,3 |
Amorphous
PET copolymer |
Kodar
(6) |
YES |
Polyarylate |
5-6 |
250-260 |
1,2,3 |
Amorphous
Aromatic Polyester |
Durel
(3) |
YES |
PSU |
4-5 |
250-260 |
1,2,3 |
Polysulfone,
Polyether, Polyarylsulfone |
Lubricom
(20) |
YES |
PUR |
2-12 |
180-200 |
1 |
Polyurethane
Elastomer |
Isoplas
(4), Estaloc (9) |
NO |
PP |
1-2 |
170-190 |
1,2 |
Polypropylene |
various |
YES |
PPC |
3-4 |
260-270 |
1,2,3 |
Polyphthalate
Carbonate |
Lexan
(8) |
YES |
PPO |
2-3 |
200-220 |
1,2 |
Polyphenylene
Oxide |
Noryl
(8) |
YES |
PPS |
2-3 |
270-280 |
1,2,3 |
Polyphenylene
Sulfide |
Ryton
(15) |
NO |
PS
(styrene) |
1-2 |
180-190 |
1 |
Polystyrene |
various |
YES |
PTMT |
2-3 |
210-220 |
1,2 |
Polytetramethylene-Terephthalate |
GAF
(7) |
NO |
PVC
(flexible) |
1-2 |
160-180 |
1,4 |
Polyvinyl-Chloride |
various |
NO |
PVC
(rigid) |
1-2 |
160-180 |
1,2 |
Polyvinyl-Chloride |
various |
YES |
SAN |
3-4 |
180-190 |
1 |
Styrene-Acrylonitrile |
Tyrile
(4), Lustran (13) |
YES |
SMA |
2-3 |
200-210 |
1 |
Styrene-Maleic
Anhydride |
Cadon
(13) |
YES |
TPE |
2-3 |
210-220 |
1,2 |
Thermoplastics
Polyester |
Hytrel
(5) |
YES |
TPO
(POE) |
2-3 |
150-190 |
1,2,3 |
Thermoplastics
Olefin Elastomer |
Santoprene
(26) |
MATERIAL MANUFACTURER |
NOTES |
|
(1) Arco
Plymer |
(12) Mobay |
1. Use shorter time for non-critical injection molding: longer for critical
molding, extrusion, or when regrind is added. |
(2) Borg
Warner |
(13) Bayer |
(3) Hoechst |
(15) Phillips
Petroleum |
2. Glass filler assists drying process; graphite or talc fillers make it more
difficult. Dry accordingly. |
(4) Dow |
(17) Sohio |
(5) DuPont |
(20) LNP |
3.
After cooler for return air recommended |
(6) Eastman |
(22)Allied
Enginered Polymers |
4.
Plasticizer Trap suggested |
(7) GAF |
(24) ICI
Americas |
5. Some nylons may require as long as 12 hours to dry, depending upon initial
moisture content. |
(8)
GeneralElectric |
(26) Advanced
Elastomers |
(9) B.F.
Goodrich |
|
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