Millable vs. Castable Urethanes - TSE Industries, Inc.
Millable vs. Castable Urethanes - TSE Industries, Inc.
Millable vs. Castable Urethanes - TSE Industries, Inc.
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<strong>TSE</strong> <strong>Industries</strong>, <strong>Inc</strong>.<br />
Millathane® <strong>Millable</strong> Polyurethane Division<br />
4370 112th Terrace North<br />
Clearwater, FL 33762 (USA)<br />
727-573-7676 or 800-237-7634 www.tse-industries.com<br />
COMPARISON OF MILLATHANE® MILLABLE POLYURETHANE<br />
<strong>vs</strong>.<br />
CASTABLE POLYURETHANE ROLL COMPOUNDS<br />
1. This report compares the properties of Millathane 76 and Millathane 66<br />
(polyester millable urethanes) to a castable urethane prepolymer system,<br />
over a range of hardness.<br />
2. From the enclosed data, Millathane millable urethanes have a property<br />
advantage at low hardness, while castable urethanes have an advantage at<br />
high hardness.<br />
3. <strong>Millable</strong> urethanes can be used to make excellent low durometer roll<br />
coverings. At 50 to 70 Durometer A, the tear and compression set<br />
properties of Millathane millable urethanes are superior to cast urethane.<br />
4. At 90 Durometer A, the castable urethane physical properties are much<br />
better than those of millable polyurethanes.<br />
5. The main advantage of using Millathane millable urethanes are that they<br />
can be processed on conventional rubber equipment (mills and internal<br />
mixers). Millathane millable urethane rolls can be made by injection,<br />
transfer, and compression molding techniques. Large industrial rolls can<br />
also be built via extrusion methods or strip winding of calendered stock.<br />
Millathane millable urethane is used by custom rubber roll manufacturer to<br />
make urethane rolls. This enables custom roll manufacturers to use<br />
Millathane millable urethane in markets where high performance is<br />
demanded, without purchasing expensive casting equipment.<br />
6. Data found on the following pages is based on the following polyurethane<br />
elastomers.<br />
Millathane 76 Sulfur Cured TDI/Polyester (<strong>Millable</strong> PU)<br />
Millathane 66 Peroxide Cured MDI/Polyester (<strong>Millable</strong> PU)<br />
Vibrathane 6012 MDI/Polyester/Butane diol (<strong>Castable</strong> PU)<br />
The recommendations for the use of our products are based on tests believed to be reliable. However, we do not guarantee the results to be<br />
obtained by others under different conditions. Nothing in this literature is intended as a recommendation to use our products so as to infringe<br />
on any patent. Millathane® and Thanecure® are registered trademarks of <strong>TSE</strong> <strong>Industries</strong>, <strong>Inc</strong>.
55 DUROMETER<br />
Millathane® Millathane 66 Cast Polyester<br />
76<br />
Hardness Shore A 55 55 55<br />
100% Modulus, psi (MPa) 180 (1.3) 550 (3.9) 210 (1.5)<br />
Tensile Strength, psi (MPa) 5275 (37.1) 5750 (40.4) 3000 (20.7)<br />
Elongation, % 735 670 560<br />
Tear Die C, lb/in (kN/m) 239 (41.8) 254 (44.4) 180 (31.5)<br />
Compression Set, Method B 40 25 --<br />
22 hrs @ 70°C, % set<br />
Bashore Resilience, % 15 40 53<br />
60 - 65 Shore A DUROMETER<br />
Millathane 76 Millathane 66 Cast Polyester<br />
Hardness Shore A 60 65 65<br />
100% Modulus, psi (MPa) 179 (1.3) 316 (2.2) 320 (2.2)<br />
Tensile Strength, psi (MPa) 4340 (30.5) 4730 (33.3) 5300 (29.6)<br />
Elongation, % 708 491 500<br />
Tear Die C, lb/in (kN/m) 232 (40.6) 344 (60.2) 240 (42)<br />
Compression Set, Method B 45 22 --<br />
22 hrs @ 70°C, % set<br />
Bashore Resilience, % 16 35 44<br />
70 – 75 Shore A DUROMETER<br />
Millathane 76 Millathane 66 Cast Polyester<br />
Hardness Shore A 70 70 75<br />
100% Modulus, psi (MPa) 435 (3.1) 492 (3.5) 450 (3.1)<br />
Tensile Strength, psi (MPa) 5295 (37.2) 4300 (30.2) 5600 (38.6)<br />
Elongation, % 590 540 460<br />
Tear Die C, lb/in (kN/m) 455 (79.6) 329 (57.6) 330 (57.8)<br />
Compression Set, Method B 46 21 --<br />
22 hrs @ 70°C, % set<br />
Bashore Resilience, % 15 30 38<br />
85 - 90 Shore A DUROMETER<br />
Millathane 76 Millathane 66 Cast Polyester<br />
Hardness Shore A 90 90 85<br />
100% Modulus, psi (MPa) 1250 (8.7) 2200 (15.5) 750 (5.2)<br />
Tensile Strength, psi (MPa) 4400 (31.0) 2600 (18.3) 6200 (42.7)<br />
Elongation, % 275 160 430<br />
Tear Die C, lb/in (kN/m) 443 (77.5) 478 (83.6) 500 (87.5)<br />
Compression Set, Method B 35 25 --<br />
22 hrs @ 70°C, % set<br />
Bashore Resilience, % 13 32 34
MILLATHANE® MILLABLE POLYURETHANE<br />
ROLL COMPOUNDS<br />
Shore A Durometer 55 55 60 65 70 70 90 90<br />
Millathane 76 100.0 100.0 100.0 100.0<br />
Millathane 66 100.0 100.0 100.0 100.0<br />
Zinc Stearate 0.5 0.5 0.5 0.5<br />
Stearic Acid 0.25 0.5 0.25 0.25<br />
Hi Sil 243LD 5.0<br />
Titanium Dioxide 0.5<br />
N990 Black 0.2<br />
N330 Black 25.0 60.0<br />
Ricon P 30/D 0.5<br />
AC 617A 0.5 0.5 0.5 0.5 2.0 1.0<br />
Dicup 40C 6.0 6.0 6.0 6.0<br />
MBTS 4.0 4.0 4.0 4.0<br />
MBT 2.0 2.0 2.0 2.0<br />
THANECURE® ZM 1.0 1.0 1.0 1.0<br />
Sulfur 1.5 1.5 1.5 2.0<br />
N220 Black 30.0 25.0 20.0 55.0<br />
N550 Black 45.0<br />
Cumar P-10 5.0 5.0 5.0 5.0<br />
TP-95 3.0 8.0 3.0 5.0 5.0<br />
SR-350 10.0