IOTA M3053-Y2.5 is a two-component, 1:1 mixed ratio, room-temperature curing liquid silicone rubber. Its core feature is that it has long-lasting self-lubrication after curing. The product description states that the principle is that lubricating oil is integrated into the silicone rubber molecular chain, and after curing, a micro-oil film continuously seeps out on the surface, thereby reducing the friction coefficient, reducing noise and wear. This product has a low viscosity (mixed viscosity 290, 23℃, 10 s⁻¹), a hardness of Shore A 50, a tensile strength of 9 MPa, an elongation rate of 500%, a tear strength of 35 KN/m, and is suitable for injection or pouring molding. It can be quickly cured at 130℃. Technical specifications, 1, 3
First, compare the key indicators under the same conditions
Item Values / Explanation
Item Values / Explanation
System Biphasic room-temperature curing, platinum-catalyzed
Mixing ratio 1:1 (by weight)
A component viscosity at 23℃ 300 (10 s⁻¹)
B component viscosity at 23℃ 280 (10 s⁻¹)
Mixed viscosity at 23℃ 290 (10 s⁻¹)
Density 1.12 g/cm³
Hardness 50 HA
Tensile strength 9 MPa
Elongation rate 500%
Tear strength 35 KN/m
Curing method Quick thermal curing
Packaging A 200 kg/桶， B 200 kg/桶
The viscosity unit "23℃， 10S⁻¹" should be understood as the viscosity value under the condition of 23℃ and a shear rate of 10 s⁻¹. When inquiring， it is necessary to confirm with the supplier whether this unit is equivalent to mPa·s or cP， and avoid directly converting based on other viscosity testing methods. Technical indicators
What does self-lubrication mean?
This material belongs to the "oil-extracting" type of self-lubricating liquid silicone rubber. That is, after curing, a slow release of lubricating fluid occurs on the surface, forming a micrometer-sized oil film, thereby reducing friction and wear. This is different from some modified silicone rubbers that are "low in friction but do not extract oil".
When selecting the type, the following should be carefully confirmed:
Oil-extraction rate and persistence: If the oil extraction is too fast, it may cause the surface to become sticky and contaminate surrounding parts; if it is too slow, the lubrication effect will be insufficient. The friction coefficient change and lubrication life should be confirmed based on the actual working conditions.
Temperature range for use: The oil-extraction rate may decrease at low temperatures and increase at high temperatures. The lubrication stability at the target temperature should be verified.
Compatibility with contact media: If used in food, medical, or precision electronic scenarios, it is necessary to confirm whether the extracted substances meet the corresponding compliance requirements.
Friction conditions: Different working conditions such as reciprocating motion, rotational motion, and insertion and assembly have different requirements for self-lubrication. Targeted verification is necessary.
The core differences between M3053-Y2.5 and G30-303/G30-305 series
Comparison item M3053-Y2.5 G30-303/305 series
Comparison item M3053-Y2.5 G30-303/305 series
Core function Self-lubrication, low friction Mold flipping, high detail replication
Mixing viscosity 290 (extremely low) 36000–80000
Hardness 50 HA 28–42 HA
Typical application Silicone tubes, sealing pads, accessories Silicone molds, syringe injection products
Disintegration property Excellent (due to self-lubrication) Better
Curing speed Quick thermal curing Need to confirm the specific curve
The viscosity of M3053-Y2.5 is extremely low (290), suitable for injection molding and thin-wall filling; the G30 series has a higher viscosity, more suitable for mold sealing and detail replication. The application directions of the technical indicators are different, and they cannot be simply interchanged based on viscosity or hardness.
Determine the verification focus according to the purpose
Self-lubricating silicone tube application
Key to verify: the sliding resistance between the tube inner wall and the mating parts, the wear performance after long-term friction, and whether the oil extraction contaminates the medium or the surrounding environment. If used for fluid transportation, it is also necessary to confirm the compatibility of the extracted substances with the transportation medium.
Self-lubricating sealing pad application
Key to verify: compression permanent deformation, friction coefficient, reciprocating motion life, and sealing retention force. The self-lubrication can reduce assembly force and motion resistance, but it is necessary to confirm that the sealing performance does not deteriorate after long-term use.
Self-lubricating accessory application
Key to verify: insertion force, assembly feel, noise performance, and long-term lubrication persistence. If used in precision components such as electronic connectors and snap-in parts, it is necessary to confirm whether the oil extraction affects electrical performance or appearance.
Injection molding application
Low viscosity (290) is conducive to filling and thin-wall molding, but it is necessary to confirm the injection equipment, mixing ratio accuracy, curing temperature, and demolding cycle. It can be quickly cured at 130°C, but the specific curing time needs to be confirmed with the supplier. Technical indicators, 1, 3
How to verify from samples to mass production
First, agree on the acceptance items
Keep the batch records, viscosity, hardness, tensile strength, tear strength, friction coefficient, oil-extraction rate, and product performance of the currently used materials, and convert them into checkable items.
Do a small test with the same conditions
Keep the currently used materials as a control, test under the same base material, injection equipment, curing temperature and time. When the process needs to be adjusted, another test group should be listed and the reasons recorded.
Test production under real conditions
After the small test meets the requirements, verify the stability of the injection equipment, mixing ratio, filling integrity, demolding cycle, friction life, and product consistency.
Write the results in the purchase and change requirements
Record the approved model, viscosity range, hardness range, curing conditions, testing method, applicable base materials and restrictions, and agree on COA, sample retention, batch traceability and change notification.
Information to prepare before contacting the supplier
An unclassified application summary can be provided first: material usage (silicone tubes/sealing pads/components), component material, friction conditions (repetitive motion/rotation/plugging), operating temperature range, whether food-grade or medical-grade certification is required, injection or casting process, target curing temperature and time, current problems encountered and estimated purchase quantity. When there are requirements for friction coefficient, oil release rate, compression permanent deformation and compliance, the detection methods and acceptance standards should also be specified.
FAQ
1. Will the self-lubricating property always remove oil?
This material integrates lubricating oil through molecular chains and forms a micro-oil film on the surface after curing. However, the rate of oil removal and its durability are affected by temperature, friction frequency and the environment, and need to be verified under actual working conditions.
2. Can it be used in food or medical contact scenarios?
The materials are not clearly labeled as food-grade or medical-grade. If used in such scenarios, corresponding compliance documents (such as FDA, LFGB, GB 4806.11, ISO 10993, etc.) must be obtained from the supplier and actual contact verification must be conducted.
3. Why must catalyst poisoning be avoided?
This product is a platinum-based catalytic polymerization system. When in contact with sulfur, phosphorus, nitrogen, organotin, heavy metals or other inhibitory substances, it may not cure, the surface may become sticky or the curing may not be complete. Important matters include the base material, release agent, pigment and tooling, which should all be checked in advance.
4. Can the A/B components be mixed across batch numbers?
No. The materials clearly state that only components of the same batch number A and B can be mixed for use. Mixing components from different batch numbers may affect the curing speed, hardness, and mechanical properties. Important matter
5. Can it still be used after more than 12 months?
The data shows that the storage period at a temperature below 23℃ and without opening the container is 12 months. Exceeding the shelf life does not necessarily mean it cannot be used, but the appearance, viscosity, mixing ratio, curing performance, hardness, tear strength, and self-lubrication performance should be checked, and confirmed through small-scale tests. Storage and retention period
6. Is a viscosity of 290 suitable for injection?
This viscosity is extremely low and is very suitable for injection molding and thin-walled filling. However, it is necessary to confirm whether the mixing accuracy of the injection equipment, injection pressure, and curing speed match. It is recommended to conduct filling tests on the actual equipment.