美孚寶力達EP 2
多用途潤滑脂
產(chǎn)品描述
美孚寶力達EP 2是剪切穩(wěn)定的聚脲潤滑脂具有優(yōu)良的極壓（EP）和承載特性。專有的聚脲增稠劑體系具有優(yōu)異的耐氧化性和油分離在操作溫度高達350°F。憑借其出色的高溫氧化穩(wěn)定性，承載能力強，剪切穩(wěn)定性，耐水性和較寬的工作溫度范圍內(nèi)，美孚寶力達EP 2是一個優(yōu)秀的多用途潤滑脂，適用于工業(yè)和建筑應(yīng)用廣泛。
特點和優(yōu)點
極壓保護和熱穩(wěn)定性
美孚寶力達EP 2包含一個專有的極壓（EP）添加劑包，提供了承載能力而不在高溫下降低了潤滑脂的熱穩(wěn)定性。在其它多用途使用的常規(guī)硫和磷的基極壓添加劑的潤滑脂開始在溫度高于250°F。迅速氧化 美孚寶力達EP 2，另一方面，繼續(xù)提供磨損和極壓防護，高水平至350°F無抗磨損或抗極壓添加劑的快速氧化。
美孚寶力達EP 2的出色的高溫潤滑壽命赫然展現(xiàn)在ASTM D 3336潤滑脂壽命測試 - 平均ASTM D 3336壽命為490小時，3?5倍以上的有競爭力的多高溫潤滑生活更美好目的鋰基潤滑脂。
濠江剪切穩(wěn)定性
專有的聚脲增稠劑體系在美孚寶力達EP時，受到機械剪切力2顯示出優(yōu)異的耐久性和穩(wěn)定性。類似的高品質(zhì)的復(fù)合鋰基潤滑脂的性能，這是基準(zhǔn) - 例如，在ASTM D 217靜力觸探，美孚寶力達EP 2的一致性了大約一個NLGI級正在制訂100,000中風(fēng)后改變優(yōu)良的剪切穩(wěn)定性。與此相反，含有剪切不穩(wěn)定增稠劑技術(shù)競爭的聚脲潤滑脂可以在相同的測試條件下，通過3 NLGI等級軟化。良好的機械剪切穩(wěn)定性是很重要的滾子軸承應(yīng)用中過多的油脂軟化可能導(dǎo)致從軸承潤滑脂的泄漏或清洗。
優(yōu)異的耐水性
在美孚寶力達EP 2配方是加強與防水聚合物，使得它形成于應(yīng)用程序都嚴重污染了水的堅韌保護膜。在水淋（ASTM D 1264）和噴水銷（ASTM D 4049）測試中獲得的美孚寶力達EP 2的優(yōu)異成績證明了油脂的留在原地，即使在加壓噴水的存在能力。
綜上所述，美孚寶力達EP 2提供了以下功能和優(yōu)點：
- 杰出的高溫氧化穩(wěn)定性
- 優(yōu)良的機械剪切穩(wěn)定性
- 熱穩(wěn)定的極壓（EP）保護
- 寬工作溫度范圍（-40°F至350°F）
- 水噴霧起飛和水淋優(yōu)異的抗
應(yīng)用
美孚寶力達EP 2是一個優(yōu)秀的多用途潤滑脂，適用于工業(yè)和建筑應(yīng)用廣泛。
典型屬性
| 美孚寶力達EP 2 |
|
| 稠化劑類型 |
聚脲 |
| NLGI等級 |
2 |
| 顏色 |
綠色 |
| 基礎(chǔ)油粘度，ASTM D 445 |
|
| 厘斯@ 40°C |
235 |
| 厘斯@ 100℃ |
18.4 |
| 礦物油粘??度指數(shù)，ASTM D 2270 |
85 |
| 滲透，ASTM D217工作，60X度，mm/10 |
280 |
| 滲透，ASTM D217工作，10萬度，mm/10 |
310 |
| 滴點，ASTM D 2265，°C（°F） |
280（535） |
| 高溫潤滑脂壽命，ASTM D 3336，小時@ 177℃ |
490 |
| 四球焊接，ASTM D 2596，千克 |
500 |
| 四球磨損傷痕直徑，@ 1200轉(zhuǎn)，40千克，75℃，1小時，mm |
0.4 |
| 鐵姆肯OK負荷，ASTM D 2509，磅 |
45 |
| 低溫扭矩，ASTM D 4693，-40°C，NM |
12.2 |
| 油分離試驗，AS??TM D 1742，％ |
<0.3 |
| 噴水過，ASTM D 4049，％ |
15 |
| 水沖蝕，ASTM D-1264，@ 79°C，％ |
2.7 |
| 銹蝕保護，ASTM D 1743 |
通 |
健康與安全
健康的皮膚狀況取決于清潔。油和油脂，皮膚接觸可能導(dǎo)致堵塞汗腺和毛囊。這可能會導(dǎo)致皮膚發(fā)炎或皮炎。因此，防護手套，衣服和設(shè)備應(yīng)佩戴和良好的個人衛(wèi)生習(xí)慣，應(yīng)始終實行。油，油脂和其他異物應(yīng)該從皮膚迅速被刪除。臟衣物不應(yīng)該保持與皮膚接觸。美孚寶力達EP 2從皮膚通過無水潔手劑，然后用肥皂，溫水，和皮膚刷清洗容易地除去。它可以從衣物通過干洗用的溶劑或用洗滌劑??洗滌被除去。如果美孚寶力達EP 2與眼睛接觸，用水沖洗眼睛用清水，直至刺激感消失。
正如在所有潤滑脂的情況下，如果有一個穿刺傷口用油脂污染，或在油脂被注入人體組織，如“黃油槍受傷，”應(yīng)該得到及時的醫(yī)療援助受傷。
警告：“空”的容器中保留有殘余物（液體和/或蒸汽），并可能是危險的。不要加壓，切割，焊接，銅焊，焊，鉆，磨，或揭露這種容器加熱，火焰，火花或其他火源，以免發(fā)生爆炸，造成人身傷害或死亡。不要試圖清理，因為殘留物很難清除，甚至一絲剩余材料構(gòu)成爆炸危險。“空”圓桶應(yīng)被完全排凈，bunged，并及時返回到桶維修。所有其他容器應(yīng)以對環(huán)境安全的方式，并按照政府規(guī)定處理。
根據(jù)現(xiàn)有資料顯示，本產(chǎn)品不會使用時，為有意申請和材料安全數(shù)據(jù)表（MSDS）提供的建議得到采納，產(chǎn)生對人體健康產(chǎn)生不良影響。物質(zhì)安全資料表可向當(dāng)?shù)亟?jīng)銷部門或上網(wǎng)獲取。本品不宜用于除達到預(yù)定可使用其他。如需處理用過的產(chǎn)品，注意保護環(huán)境。
美孚字型，飛馬圖樣及Delvac MX均為埃克森美孚公司的商標(biāo)，或者其附屬公司之一。
版權(quán)所有?2001-2013埃克森美孚公司。保留所有權(quán)利。
Mobil Polyrex EP 2
Multi-purpose Grease
Product Description
Mobil Polyrex EP 2 is a shear-stable polyurea grease with excellent extreme-pressure (EP) and load-carrying characteristics. The proprietary polyurea thickener system exhibits excellent resistance to oxidation and oil separation at operating temperatures as high as 350°F. With its outstanding high-temperature oxidation stability, load-carrying capability, shear stability, water resistance and wide operating temperature range, Mobil Polyrex EP 2 is an excellent multi-purpose grease for a wide array of industrial and construction applications.
Features and Benefits
EXTREME-PRESSURE PROTECTION AND THERMAL STABILITY
Mobil Polyrex EP 2 contains a proprietary extreme-pressure (EP) additive package that provides load-carrying capability without degrading the thermal stability of the grease at high temperatures. Conventional sulfur- and phosphorus-base EP additives used in other multi-purpose greases begin to oxidize rapidly at temperatures above 250°F. Mobil Polyrex EP 2, on the other hand, continues to provide a high level of wear and extreme-pressure protection up to 350°F without rapid oxidation of the anti-wear or EP additives.
The outstanding high temperature lubrication life of Mobil Polyrex EP 2 is impressively demonstrated in the ASTM D 3336 grease life test - with an average ASTM D 3336 life of 490 hours, 3 to 5 times better than the high-temperature lubrication life of competitive multi-purpose lithium-base greases.
SUPERB SHEAR STABILITY
The proprietary polyurea thickener system in Mobil Polyrex EP 2 exhibits excellent durability and stability when subjected to a mechanical shearing force. For example, in the ASTM D 217 cone penetration test, the consistency of Mobil Polyrex EP 2 changed by approximately one NLGI grade after being worked for 100,000 strokes - similar to the performance of high-quality lithium-complex greases, which are the benchmark for excellent shear stability. By contrast, competitive polyurea greases containing shear-unstable thickener technology can soften by three NLGI grades under the same test conditions. Good mechanical shear stability is important in roller bearing applications where excessive grease softening may lead to grease leakage or purging from the bearing.
EXCELLENT WATER RESISTANCE
The Mobil Polyrex EP 2 formulation is enhanced with water-resistant polymers that enable it to form a tenacious protective film in applications that are heavily contaminated with water. The excellent results obtained for Mobil Polyrex EP 2 in the water washout (ASTM D 1264) and water spray-off (ASTM D 4049) tests demonstrate the grease's ability to stay in place, even in the presence of a pressurized water spray.
In summary, Mobil Polyrex EP 2 offers the following features and benefits:
- Outstanding high-temperature oxidation stability
- Excellent mechanical shear stability
- Thermally stable extreme-pressure (EP) protection
- Wide operating temperature range (-40 F to 350 F)
- Exceptional resistance to water spray-off and water washout
Applications
Mobil Polyrex EP 2 is an excellent multi-purpose grease for a wide array of industrial and construction applications.
Typical Properties
| Mobil Polyrex EP 2 |
|
| Thickener Type |
Polyurea |
| NLGI Grade |
2 |
| Color |
Green |
| Base Oil Viscosity, ASTM D 445 |
|
| cSt @ 40°C |
235 |
| cSt @ 100°C |
18.4 |
| Mineral Oil Viscosity Index, ASTM D 2270 |
85 |
| Penetration, ASTM D217 worked, 60x, mm/10 |
280 |
| Penetration, ASTM D217 worked, 100,000, mm/10 |
310 |
| Dropping Point, ASTM D 2265, °C (°F) |
280 (535) |
| High Temperature Grease Life, ASTM D 3336, Hours @ 177°C |
490 |
| 4-Ball Weld, ASTM D 2596, kg |
500 |
| 4-Ball Wear Scar Diameter, @1200 rpm, 40kg, 75°C, 1 Hour, mm |
0.4 |
| Timken OK Load, ASTM D 2509, lb |
45 |
| Low Temperature Torque, ASTM D 4693, -40°C, Nm |
12.2 |
| Oil separation test, ASTM D 1742, % |
?0.3 |
| Water Spray-off, ASTM D 4049, % |
15 |
| Water Washout, ASTM D 1264, @ 79°C, % |
2.7 |
| Rust Protection, ASTM D 1743 |
Pass |
|
