P5065 Low Temperature Polyurethane for Ag. Market
Parker P5065 polyurethane meets the performance demands of the agricultural equipment industry
Wear Resistant, Low Temperature Material Parker’s P5065AB8 low temperature polyurethane is formulated specifically for the agricultural industry. After carefully listening to the needs of leading agricultural cylinder manufacturers, Parker has combined the most sought after features of seal materials into one compound.
Topping the wish list was excellent low temperature performance, improved wear resistance for longer life and a soft feel for easy installation, all while being offered in an economical package to match the competitive nature of the agricultural hydraulic cylinder industry. Enter Parker’s P5065A88, an 88 Shore A polyurethane meeting the exact needs mentioned above. Are you ready for longer cylinder life, improved low temperature properties and reduced installation times? Parker is.
Material/Profile Availability
Parker’s P5065 compound is offered in a wide range of profiles and sizes. Shown here are a few popular profiles commonly used in the agricultural industry.
Both the BS U-Cup and BD PolyPak employ secondary lips that improve stability and sealing performance while featuring Parker’s knife-trimmed primary sealing lips for the ultimate in leakage control. Parker’s BD PolyPak is available with a backup for higher pressure applications (up to 10,000 psi). Parker’s SHD and SH959 wipers are industry-proven profiles that will retrofit into many non-Parker excluder glands. See page 4 for hardware dimensions of popular sizes.
Wear Resistant Characteristics of P5065 Outperform Competition in Independent Laboratory Test
An independent, third party laboratory recently conducted life cycle testing on Parker’s P5065 compound, comparing the leakage performance and wear resistance against a popular competitive urethane. Two cylinders were fitted with Parker BD PolyPaks, while two identical cylinders were fitted with similar profiles from Competitor A.
Test Results
After 20,000 cycles, leakage results showed that the cylinders incorporating Parker’s P5065 compound did not leak any measurable amount of oil; there was merely oil visible on the wiper. In contrast, the cylinders incorporating Competitor A’s urethane showed significant leakage accumulation, as follows:
When the cylinders were torn down to inspect the seals, the reason for Parker’s superior leakage performance became clear. Post-testing images show that the Parker seals have retained much of their original geometry (See Figure 1), while Competitor A’s seals have been severely worn away on their dynamic surface, resulting in loss of interference, the disappearance of the secondary lip, and ultimately, shortened cylinder life due to seal leakage.
From these images and supporting measurements, it is clear that Parker’s P5065 compound outperforms Competitor A both in leakage control and wear resistance.
Low Temperature Characteristics of P5065 Outperform Competition in Side-by-Side Testing
In order to simulate cold temperature start-ups between long runs of machine time in agricultural equipment, Parker’s EPS Division recently conducted an in-house procedure to compare P5065 to a competitive urethane.
Side-by-side comparison testing of P5065, Parker’s low temperature urethane, was compared in a BS U-Cup profile to a commonly used competitor seal for agricultural applications. After more than 150,000 cycles at 2,000 psi, Parker’s P5065 emerged as the clear winner. A two-pod Chew Test Stand was used to perform the testing. The test was performed twice, with the first test having the P5065 seal in pod 1 and the competitor seal in pod 2. The second test had the seals switched in the pods to eliminate any affects that hardware differences may have had. Each pod is covered by an environmental box, whose temperature can be set and controlled by either heating or cooling.
Procedure
After the test seals are measured and installed, and the air bled from the pods, an 11 step test procedure is followed to complete the testing as shown in Table 1.
Test Results
Upon completion of the procedure, the Parker seals have 6% less cumulative leakage, on average, than the competitor seals over the entire test. By comparing the two materials side by side in a procedure designed to simulate a common source of cylinder leakage in many agricultural applications, it can be clearly seen that Parker P5065’s low temperature characteristics and superior wear resistance make it the seal material of choice.
Cold Environment Operation is Critical
The operation and storage of agricultural equipment in cold environments makes low temperature seal performance a critical factor in material selection. One way to determine how well a seal material will perform across a wide range of temperatures is to measure its dynamic modulus. In Figure 2, Parker’s P5065 compound and Competitor A’s material are subjected to a Dynamic Modulus Analysis (DMA).
An elastomer’s Dynamic Modulus can be separated into two different components; the Storage Modulus and the Loss Modulus. The Tangent Delta, shown in the plot, is the ratio of the Loss Modulus to the Storage Modulus. This translates to be the ratio of the energy absorbed, or “lost,” by the material as heat to the energy used by the material to return to its original shape, providing sealing force.
The significant features of the Tangent Delta plot are as follows:
The temperature value of the low temperature peak relates to the material’s capability to maintain its elastic properties at lower temperature. A material with a peak at lower temperature is better for low temperature applications. In this regard, Parker P5065 outperforms Competitor A.
The magnitude of the Tangent Delta over the operating temperature range relates to the ratio of the material’s energy lost as heat to the energy maintained as a restoring force. As such, a lower curve is better than a higher curve. Parker’s P5065 has an operating range of -65 °F to 212 °F (-54 °C to 100 °C). Across the vast majority of this range, Parker P5065 outperforms Competitor A.
The constant width or flatness of the curve over the application temperature range relates to constant dynamic properties. A longer, flatter, and lower curve is most desirable. In this regard, Parker P5065 outperforms Competitor A.
The high temperature upturn of the material is associated with the material’s softening. A curve upturn at higher temperature relates to higher temperature capability and is significant even if this occurs outside the material’s recommended operating range. Once again, Parker P5065 outperforms Competitor A.
Gland Dimensions for Popular Sizes
In addition to the offering below, other cross-sections and widths are available. Parker offers complete seal and wiper kits ranging from ¼” to 9” rod diameters. Contact your Parker EPS Customer Service Representative at (801) 972-3000 or your authorized Parker distributor with your specific size requirements.
This warranty comprises the sole and entire warranty pertaining to items provided hereunder. seller makes no other warranty, guarantee, or representation of any kind whatsoever. All other warranties, including but not limited to, merchant ability and fitness for purpose, whether expressed, implied, or arising by operation of law, trade usage, or course of dealing are hereby disclaimed. Notwithstanding the foregoing, there are no warranties whatsoever on items built or acquired wholly or partially, to buyer’s designs or specifications.
Limitation of remedy: Seller’s Liability arising from or in any way connected with the items sold or this contract shall be limited exclusively to repair or replacement of the items sold or refund of the purchase price paid by buyer, at seller’s sole option. In no event shall seller be liable for any incidental, consequential or special damages of any kind or nature whatsoever, including but not limited to lost profits arising from or in any way connected with this agreement or items sold hereunder, whether alleged to arise from breach of contract, expressed or implied warranty, or in tort, including without limitation, negligence, failure to warn or strict liability.
- Details
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Topping the wish list was excellent low temperature performance, improved wear resistance for longer life and a soft feel for easy installation, all while being offered in an economical package to match the competitive nature of the agricultural hydraulic cylinder industry. Enter Parker’s P5065A88, an 88 Shore A polyurethane meeting the exact needs mentioned above. Are you ready for longer cylinder life, improved low temperature properties and reduced installation times? Parker is.
Material/Profile Availability
Parker’s P5065 compound is offered in a wide range of profiles and sizes. Shown here are a few popular profiles commonly used in the agricultural industry.
Both the BS U-Cup and BD PolyPak employ secondary lips that improve stability and sealing performance while featuring Parker’s knife-trimmed primary sealing lips for the ultimate in leakage control. Parker’s BD PolyPak is available with a backup for higher pressure applications (up to 10,000 psi). Parker’s SHD and SH959 wipers are industry-proven profiles that will retrofit into many non-Parker excluder glands. See page 4 for hardware dimensions of popular sizes.
Wear Resistant Characteristics of P5065 Outperform Competition in Independent Laboratory Test
An independent, third party laboratory recently conducted life cycle testing on Parker’s P5065 compound, comparing the leakage performance and wear resistance against a popular competitive urethane. Two cylinders were fitted with Parker BD PolyPaks, while two identical cylinders were fitted with similar profiles from Competitor A.
Test Results
After 20,000 cycles, leakage results showed that the cylinders incorporating Parker’s P5065 compound did not leak any measurable amount of oil; there was merely oil visible on the wiper. In contrast, the cylinders incorporating Competitor A’s urethane showed significant leakage accumulation, as follows:
When the cylinders were torn down to inspect the seals, the reason for Parker’s superior leakage performance became clear. Post-testing images show that the Parker seals have retained much of their original geometry (See Figure 1), while Competitor A’s seals have been severely worn away on their dynamic surface, resulting in loss of interference, the disappearance of the secondary lip, and ultimately, shortened cylinder life due to seal leakage.
From these images and supporting measurements, it is clear that Parker’s P5065 compound outperforms Competitor A both in leakage control and wear resistance.
Low Temperature Characteristics of P5065 Outperform Competition in Side-by-Side Testing
In order to simulate cold temperature start-ups between long runs of machine time in agricultural equipment, Parker’s EPS Division recently conducted an in-house procedure to compare P5065 to a competitive urethane.
Side-by-side comparison testing of P5065, Parker’s low temperature urethane, was compared in a BS U-Cup profile to a commonly used competitor seal for agricultural applications. After more than 150,000 cycles at 2,000 psi, Parker’s P5065 emerged as the clear winner. A two-pod Chew Test Stand was used to perform the testing. The test was performed twice, with the first test having the P5065 seal in pod 1 and the competitor seal in pod 2. The second test had the seals switched in the pods to eliminate any affects that hardware differences may have had. Each pod is covered by an environmental box, whose temperature can be set and controlled by either heating or cooling.
Procedure
After the test seals are measured and installed, and the air bled from the pods, an 11 step test procedure is followed to complete the testing as shown in Table 1.
Test Results
Upon completion of the procedure, the Parker seals have 6% less cumulative leakage, on average, than the competitor seals over the entire test. By comparing the two materials side by side in a procedure designed to simulate a common source of cylinder leakage in many agricultural applications, it can be clearly seen that Parker P5065’s low temperature characteristics and superior wear resistance make it the seal material of choice.
Cold Environment Operation is Critical
The operation and storage of agricultural equipment in cold environments makes low temperature seal performance a critical factor in material selection. One way to determine how well a seal material will perform across a wide range of temperatures is to measure its dynamic modulus. In Figure 2, Parker’s P5065 compound and Competitor A’s material are subjected to a Dynamic Modulus Analysis (DMA).
An elastomer’s Dynamic Modulus can be separated into two different components; the Storage Modulus and the Loss Modulus. The Tangent Delta, shown in the plot, is the ratio of the Loss Modulus to the Storage Modulus. This translates to be the ratio of the energy absorbed, or “lost,” by the material as heat to the energy used by the material to return to its original shape, providing sealing force.
The significant features of the Tangent Delta plot are as follows:
The temperature value of the low temperature peak relates to the material’s capability to maintain its elastic properties at lower temperature. A material with a peak at lower temperature is better for low temperature applications. In this regard, Parker P5065 outperforms Competitor A.
The magnitude of the Tangent Delta over the operating temperature range relates to the ratio of the material’s energy lost as heat to the energy maintained as a restoring force. As such, a lower curve is better than a higher curve. Parker’s P5065 has an operating range of -65 °F to 212 °F (-54 °C to 100 °C). Across the vast majority of this range, Parker P5065 outperforms Competitor A.
The constant width or flatness of the curve over the application temperature range relates to constant dynamic properties. A longer, flatter, and lower curve is most desirable. In this regard, Parker P5065 outperforms Competitor A.
The high temperature upturn of the material is associated with the material’s softening. A curve upturn at higher temperature relates to higher temperature capability and is significant even if this occurs outside the material’s recommended operating range. Once again, Parker P5065 outperforms Competitor A.
- Specs
-
Gland Dimensions for Popular Sizes
In addition to the offering below, other cross-sections and widths are available. Parker offers complete seal and wiper kits ranging from ¼” to 9” rod diameters. Contact your Parker EPS Customer Service Representative at (801) 972-3000 or your authorized Parker distributor with your specific size requirements. - Resources
- Warranty
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This warranty comprises the sole and entire warranty pertaining to items provided hereunder. seller makes no other warranty, guarantee, or representation of any kind whatsoever. All other warranties, including but not limited to, merchant ability and fitness for purpose, whether expressed, implied, or arising by operation of law, trade usage, or course of dealing are hereby disclaimed. Notwithstanding the foregoing, there are no warranties whatsoever on items built or acquired wholly or partially, to buyer’s designs or specifications.
Limitation of remedy: Seller’s Liability arising from or in any way connected with the items sold or this contract shall be limited exclusively to repair or replacement of the items sold or refund of the purchase price paid by buyer, at seller’s sole option. In no event shall seller be liable for any incidental, consequential or special damages of any kind or nature whatsoever, including but not limited to lost profits arising from or in any way connected with this agreement or items sold hereunder, whether alleged to arise from breach of contract, expressed or implied warranty, or in tort, including without limitation, negligence, failure to warn or strict liability.
