Millathane 26 Millable polyurethane-New millable urethane for food contact (FDA) applications.

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Millathane^® 26

A polyether millable urethane for food contact (FDA) applications.

Download MSDS and data sheet

Millathane 26 is a polyether polyurethane rubber compliant with the United States Code of Federal Regulations*, Title 21 parts 177.1680 and 177.2600. This polyurethane rubber is designed for food contact applications such as belting, rollers, seals, gaskets, linings, socks, boots, lagging, curtains, and hoses. Millathane 26 is peroxide-curable only.

TYPICAL POLYMER PROPERTIES
Chemical type	Polyether polyurethane
Color	Pale to yellow
Physical form	Solid bale or milled sheets
Packaging	38 lb. (17.2 kg) box
Odor	Faint, characteristic
Specific gravity	1.03
Mooney viscosity	30 – 60 ML(1+4)/100°C
Storage stability	3 years under dry and cool conditions

TYPICAL COMPOUND PROPERTIES
Hardness range	45 – 95 Shore A
Tensile strength	Up to 4000 psi, (27 MPa)
Tear strength	Up to 275 lb/in (48 kN/m)
Ozone resistance	Excellent
Hydrolysis resistance	Very Good
Oil & fuel resistance	Very Good
Abrasion resistance	Excellent
Resilience	Up to 60%

Processing
Millathane 26 is processed by techniques which are common to the rubber industry. Compounds can be mixed on an open mill or in an internal mixer; molded articles can be produced via compression, transfer or injection molding; calendered sheets can be press or rotocured.

Properties
Vulcanizates based on Millathane 26 can be produced in hardnesses ranging from 45 to 90 Shore A, and offer excellent abrasion resistance, very good oil and fuel resistance and very good hydrolysis resistance.

Compounding
Millathane 26 requires reinforcing fillers to achieve hardness and high mechanical strength. Reinforcing fillers like silica and small particle carbon black are easily incorporated into Millathane 26. It is peroxide-curable only, so peroxides such a dicumyl peroxide or DBPH are commonly used.

Vulcanization Conditions
Compounds based on Millathane 26 are vulcanized at temperatures of 150º - 175ºC, depending on the peroxide used, with typical cure times of 5 to 20 minutes for compression molded lab sheets.

Formulation Example

Millathane 26	100.0
Stearic Acid	0.3
Ultrasil VN3	25.0
TP-95 (DBEEA)	2.0
Struktol WB222	1.0
DiCup 40C	4.0

Cured Properties, press cure 11 min./160ºC
Hardness, Shore A	61
TSE-100*, MPa	1.1
TSE-200*, MPa	1.5
TSE-300*, MPa	2.3
Tensile Strength, MPa	23.4
Elongation at break, %	700
Tear Die C, kN/m	29.1

*TSE-XXX = Tensile Stress at XXX Elongation

*To be compliant with the FDA regulation 21CFR 177.2600, articles made must be made from the lists of ingredients shown in that section of the Federal Register. Additionally, if the article will come in contact with aqueous or oily foods, water or hexane extractions, respectively, need to be done on the finished article. TSE Industries, Inc. makes no guarantees that the end article complies with any part of the United States Code of Federal Regulations. All testing, registrations, and final approvals must be made by the article’s manufacturer.

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*Millathane 5004 and Millathane CM were formerly known as Vibrathane 5004 and Adiprene CM. Adiprene® and Vibrathane® are registered trademarks of Chemtura Corp.

TSE Industries, Inc. is an ISO 9001 Certified company.