One cannot simply conclude that product 3036 of phenolic elastic putty is suitable for all buffering, shock absorption, damping or sealing systems based solely on its ability to retain elasticity at -120 degrees Celsius or its wide range of phenolic content. One should first determine the minimum operating temperature, damping target, shear rate, loading method, contact medium, filling structure and assembly gap, and then assess whether the problem lies in the mismatch between phenolic content and viscosity, insufficient elasticity at low temperatures, or poor compatibility with the buffer structure and operating conditions. Product 3036 of phenolic elastic putty can be considered as a candidate for wide temperature range damping and buffering materials, but it must be confirmed through small-scale tests, damping tests and actual working conditions.


Why does phenolic elastic putty often fail to achieve the expected results in low-temperature damping or buffering structures?


Low phenolic content or uneven distribution leads to insufficient flexibility of molecular chains at low temperatures, slow elasticity recovery and deviation from the designed damping force.


Inconsistent viscosity selection with the buffer gap and shear rate results in delayed response due to high viscosity, and insufficient damping force due to low viscosity.


Unreasonable design of filling structure or assembly gap leads to uneven distribution of the putty in the cavity, local stress concentration or the formation of voids.


Using temperatures beyond the verified range, although the product is stated to retain elasticity at -120 degrees Celsius, its performance may deteriorate under long-term low-temperature or temperature cycling conditions.


The compatibility of the contact medium with phenolic silicone grease has not been evaluated. For example, fuel, lubricating oil, and chemical solvents can cause swelling, softening or precipitation.


The radiation, ablation, self-extinguishing and other performance properties have not been verified according to actual working conditions, and the product description alone cannot be relied upon.


When switching from ordinary silicone grease, polyurethane damping materials or rubber damping components, the viscosity, filling volume and structural gap are not adjusted, resulting in deviations from the target damping characteristics.


Improper storage conditions, such as moisture absorption, impurities mixed in or exceeding the storage period, affect the consistency of viscosity and damping.


Batch-to-batch fluctuations in phenolic content or viscosity lead to a large dispersion of damping force in the buffer.


The combination of high temperatures, ozone, ultraviolet rays and other aging factors causes the putty to harden or form voids over time, altering the damping behavior.


Determine at which stage the damping or buffering problem occurs


Failure stage Possible causes Priority inspection direction
Excessive damping force or delayed response at low-temperature start-up High viscosity, mismatch between phenolic content and low-temperature requirements Low-temperature viscosity, phenolic content, shear rate
Insufficient elasticity recovery at low temperatures Low phenolic content, phenolic putty hardens at low temperatures Low-temperature elasticity, recovery time, temperature cycling
Insufficient damping force at normal or high temperatures Low viscosity, insufficient filling volume, excessive gap Viscosity, filling volume, assembly gap
Large temperature-dependent damping force changes High viscosity coefficient, uneven phenolic content Viscosity-temperature curve, phenolic content, batch consistency
Damping force drift over long-term use Ageing hardening, precipitation, medium swelling Heat ageing, medium immersion, ozone ageing
Formation of voids or flow deviation in the buffer Improper flowability or filling process of the putty Fill-in process, exhaust, cavity structure
Softening or swelling after contact with the medium Poor compatibility of the medium with phenolic silicone grease Medium type, temperature, immersion time
Dispersion of damping force between batches Fluctuations in phenolic content or viscosity Inspection at factory, uniformity of mixing, storage conditions
If only focusing on "whether product 3036 was used", without recording phenolic content, viscosity, low-temperature elasticity, filling structure and medium conditions, it is usually difficult to accurately determine whether it is a material problem or a structural problem.


Why is increasing phenolic content or viscosity alone not always effective?


Product 3036 plays a damping role in the buffer, influenced by phenolic content, viscosity, shear rate, temperature and structural gap. Simply adjusting one item may bring side effects.


Increasing phenolic content may improve high-temperature resistance and damping characteristics, but it may affect low-temperature flexibility and viscosity-temperature behavior.


Increasing viscosity may enhance the damping force at room temperature, but excessively high viscosity at low temperatures can lead to sluggish response or difficulty in startup.


Reducing viscosity may improve the response at low temperatures, but insufficient damping force is observed at high temperatures or under high shear conditions, resulting in reduced load-bearing capacity.


Increasing the filler content may enhance the damping force, but insufficient clearance or poor heat dissipation can cause local overheating and accelerated aging.


Changing the phenyl content without adjusting the viscosity may not match the shear rate and frequency response of the buffer.


After the product absorbs moisture or mixes in impurities during storage, adjusting the formula again cannot restore the original damping consistency.


Switching from other damping materials, only adjusting the dosage of product 3036 without redesigning the clearance and exhaust structure may not achieve the target damping curve.


Therefore, when optimizing, one should observe the phenyl content, viscosity, low-temperature elasticity, filling structure, medium, and aging conditions simultaneously, rather than only adjusting a single parameter.


What are the differences in product 3036 selection compared to similar damping/buffer materials?


Comparison direction Product 3036 (phenyl elastic putty) Ordinary silicone grease Polyurethane damping material Rubber damping component Selection boundary
Low-temperature elasticity Still elastic at -120 degrees Celsius Prone to hardening at low temperatures Low low-temperature performance Prone to hardening at low temperatures Prioritize evaluating phenyl putty for extremely low-temperature applications
Damping adjustability Phenyl content and viscosity adjustable Limited damping adjustability Adjustable through formula Fixed modulus Select based on damping curve requirements
Weather resistance and ozone resistance Refer to weather resistance, ozone resistance, radiation resistance, burnout resistance, and self-extinguishing General General Better Verify according to actual environment
Filling adaptability Thick liquid, can be filled into complex cavities Reconfigurable Usually in casting form Requires molding and assembly Prioritize phenyl putty for complex cavities
Temperature impact on damping Need to verify the viscosity-temperature curve Significant impact on viscosity-temperature Moderate impact on viscosity-temperature Less impact on viscosity-temperature Emphasize verification in wide temperature range
Medium compatibility Need to verify with fuel, lubricating oil, solvents General Depending on the formula Depending on the type of rubber Special testing required for contact medium
Long-term aging Need to verify heat, ozone, radiation aging General General Better Accelerated aging required for long-life applications
Why is it still necessary to conduct complete tests for compatibility with buffer structure and medium?


Aydota's public information states that product 3036 (phenyl elastic putty) is used in aerospace, high-speed rail, tanks, nuclear submarines, ships, aircraft, bridges, metallurgy, mining, offshore platforms, etc., as damping and buffer structures. However, when used in actual systems, there may still be:


Differences in buffer cavity structure, clearance, and exhaust design.


Temperature conditions, temperature cycling, and low-temperature retention time.


Shear rate, frequency, and loading method.


Contact medium type, concentration, and temperature.


Phenyl content and viscosity batch differences.


Filling process and filler dosage.


Long-term aging, radiation, and burnout conditions.


Storage conditions and packaging sealing.


Compatibility with metals, seals, and coatings.


Damping force acceptance method and safety factor.


Uniform appearance or short-term damping compliance does not prove stability after long-term low-temperature, high-temperature, medium immersion, or radiation aging. Verification should be conducted using the complete structure, actual materials, and working conditions before use.


What parameters should be confirmed when using product 3036?


Parameter category Information to be confirmed
Application direction Aerospace, high-speed rail, tanks, nuclear submarines, ships, aircraft, bridges, metallurgy, mining, offshore platforms as buffer structures
Structural parameters Cavity clearance, filler dosage, exhaust design, sealant material
Temperature conditions Minimum temperature, maximum temperature, temperature cycling, low-temperature retention time
Damping requirements Damping force range, frequency response, shear rate, rebound time
Phenyl content Target value within the range of 5.0-30.0% by mole percentage
Viscosity: Target value within the range of 2000 to 100000 millipascal-seconds
Contact medium: Fuel oil, lubricating oil, chemical solvents, water vapor, salt fog
Aging conditions: Thermal aging, ozone, ultraviolet, radiation, ablation
Storage conditions: Cool and dry, sealed, avoiding direct sunlight, away from heat sources and ignition points, for 24 months
Acceptance criteria: Low-temperature elasticity, damping force, viscosity-temperature curve, recovery elasticity, volume change of the medium, performance retention rate after aging
What should be verified for the product 3036?


The batch consistency of phenyl content and viscosity.


Elastic recovery and damping force at the lowest temperature.


Viscosity-temperature curves and damping curves at normal temperature, high temperature and low temperature.


Damping responses at different shear rates and frequencies.


Rebound time after compression or shear.


Volume change, hardness and precipitation after contact with the medium.


Damping force retention rate after thermal aging, ozone aging, radiation aging.


Self-extinguishing and fire-resistant performance (as per application requirements).


Whether there are air bubbles, flow deviation or leakage inside the buffer after filling.


Damping force drift after long-term temperature cycling.


Batch-to-batch viscosity dispersion.


Viscosity and appearance changes after storage.


How to design the test before using product 3036?


Establish a benchmark for the current damping material or buffer, record the material model, phenyl content, viscosity, filling volume, structural gap and failure performance.


Uniform test conditions: cavity structure, filling volume, temperature curve, shear rate, frequency and medium conditions.


Set candidate samples: current material, product 3036 with different phenyl content or viscosity specifications.


Complete the full process test: filling → exhaust → temperature cycling → damping test → medium immersion → aging test.


Evaluate the actual results: low-temperature elasticity, damping force, viscosity-temperature curve, rebound time, volume change of the medium, performance retention rate after aging.


Test items Uniform requirements
Cavity structure and filling volume Keep consistent or set gradient according to design
Temperature conditions Set according to actual working conditions
Shear rate and frequency Set according to actual working conditions
Medium conditions Set according to contact medium
Aging conditions Set according to requirements such as thermal, ozone, radiation
Measurement method Consistent for low-temperature elasticity, damping force, viscosity-temperature curve, rebound time, volume change
Which situations are not suitable for directly using product 3036?


The lowest operating temperature, damping force target or structural gap have not been confirmed, making it impossible to determine if the phenyl content and viscosity match.


The compatibility of the contact medium with phenyl silicone grease has not been verified, such as strong solvents, fuel oil, strong acids and bases.


Specific food contact, medical or airworthiness approval is required, but corresponding materials have not been obtained.


There are clear grade requirements for flame retardancy, self-extinguishing or fire resistance, but no specific verification has been conducted.


Only the product name is known, without the buffer structure, filling volume and temperature conditions.


The customer requests to directly mix it into the in-use system, but cannot control the phenyl content, viscosity and filling volume.


When switching from ordinary silicone grease, polyurethane or rubber damping components, the gap and exhaust structure have not been redesigned.


Storage conditions do not meet the requirements of cool and dry, sealed, avoiding direct sunlight, away from heat sources and ignition points, and the product may absorb moisture or deteriorate.


There are strict requirements for long-term radiation aging, but no cumulative dose assessment has been conducted.


There are strict requirements for batch-to-batch viscosity dispersion, but no evaluation of phenyl content and viscosity for incoming inspection has been established.


The compatibility of the buffer sealing material with phenyl silicone grease has not been assessed, and there may be swelling or leakage.


After exceeding the storage period, the viscosity, phenyl content and damping performance are not tested before continued use.


Aytota can provide which selection support?


As an integrated solution provider for organic silicon全产业链， Aytota can assist in comparing the applicability of different phenyl content and viscosity specifications of product 3036 in low-temperature damping， buffering and weather-resistant structures.


For aerospace, high-speed rail, shipbuilding, bridge construction or offshore platform buffering projects that require balancing extreme low-temperature elasticity, stable damping force, resistance to media, and long lifespan, before making a selection, the following information should be provided:


Buffer structure, cavity gap and filling volume.


Minimum temperature, maximum temperature and temperature cycling conditions.


Target damping force, frequency response and rebound time.


Contact medium type, concentration and temperature.


Target range of phenyl content and viscosity.


Requirements for thermal aging, ozone, radiation and ablation.


Current damping material model, filling volume and failure performance.


Acceptance methods and applicable standards.


After receiving complete data, it can be determined whether to test a certain phenyl content and viscosity specification of product 3036 first, or to choose other damping materials or structural schemes.


Common misunderstandings


It can be used for all extreme low-temperature buffering even if it still has elasticity at -120 degrees Celsius.
Low-temperature elasticity also depends on shear rate, frequency, filling structure and long-term low-temperature retention time, and the damping force needs to be verified under actual working conditions.


The higher the phenyl content, the better the damping performance.
The phenyl content affects the temperature resistance, viscosity and damping characteristics. An excessively high content may affect the low-temperature flexibility, and it needs to be selected based on the temperature range and damping target.


The higher the viscosity, the greater the damping force.
High viscosity may cause low-temperature response delay or filling difficulties, while low viscosity may result in insufficient damping force. It needs to be matched with the gap and shear rate.


It can be directly filled with the buffer structure compatibility.
It is still necessary to confirm the exhaust, filling volume, sealant compatibility and long-term aging stability.


The damping at 25 degrees Celsius is the same, it can be replaced in equal amounts.
Gel mud with different phenyl contents and viscosities may have different viscosity-temperature curves and low-temperature elasticity.


Radiation resistance and ablation resistance can be judged based on the product introduction.
Special verification is required according to the actual radiation dose and ablation conditions.


Product 3036 can be used for all damping structures.
The phenyl elastic gel mud is suitable for buffering and damping in a wide temperature range, but for high-frequency, high-load or strong chemical medium conditions, it may need to be combined with structural design or other materials.


It can be used directly after 24 months of storage.
After exceeding the storage period, the viscosity, phenyl content and damping performance should be tested. It can be used again after passing the inspection.


Recommended selection steps


Confirm the application direction: aerospace, high-speed rail, shipbuilding, bridges, metallurgy, mining or offshore platform buffer.


Confirm the buffer structure, cavity gap and filling volume.


Confirm the minimum temperature, maximum temperature and temperature cycling conditions.


Confirm the target damping force, frequency response and rebound time.


Confirm the contact medium and sealant material.


Based on the temperature and damping target, initially select the phenyl content and viscosity specifications.


Set up a gradient of different phenyl contents, viscosities and filling volumes for small tests.


Test low-temperature elasticity, damping force, viscosity-temperature curve and rebound time.


Perform media immersion, thermal aging, ozone and radiation aging verification.


Evaluate the filling quality, sealing reliability and batch consistency of the buffer.


Establish factory inspection standards for phenyl content and viscosity.


After multiple batch and actual working condition verifications, determine the final usage plan.