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IOTA LSR 3M40-45 is an addition-cured silicone rubber for lace border anti-slip fabric.
It is designed for textile applications where the silicone coating needs to provide:
Anti-slip performance
Good adhesion to fabric substrates
High surface fullness
Flexible hand feel
High tensile strength
High elongation
Transparent appearance
Food-grade silicone material
The product is particularly suitable for lace fabric and other textile coating applications requiring a soft, flexible and durable silicone coating.
IOTA LSR 3M40-45 uses a platinum-catalyzed addition-curing system.
The key product specifications are:
| Property | Typical Value |
|---|---|
| Silicone Type | Addition-cured silicone rubber |
| Application | Lace border anti-slip fabric |
| Components | Part A + Part B |
| Mixing Ratio | A:B = 2:100 by weight |
| Part A Viscosity | 300 mPa·s at 23°C |
| Part B Viscosity | 80,000 mPa·s at 23°C |
| Mixed Viscosity | 76,000 mPa·s at 23°C |
| Uncured Color | Transparent |
| Cured Color | Transparent |
| Cured Hardness | Shore A 30 |
| Tensile Strength | ≥6 MPa |
| Elongation at Break | ≥300% |
| Tear Strength | ≥15 kN/m |
| Part A Packaging | 2 kg/drum |
| Part B Packaging | 200 kg/drum |
| Shelf Life | 12 months below 23°C when unopened |
The listed values are typical product data and should not be treated as standard specifications. Final performance should be evaluated under the customer's actual processing and application conditions.
Silicone rubber is suitable for lace anti-slip applications because it can combine flexibility, adhesion and surface friction without creating a rigid coating on the textile.
Lace and textile materials are flexible substrates. A coating material that is too hard may reduce fabric flexibility, while a material with insufficient adhesion may peel or crack during use.
IOTA LSR 3M40-45 is designed to balance:
Softness + Elasticity + Adhesion + Surface Fullness + Mechanical Strength
The cured material has a Shore A hardness of 30 and an elongation at break of at least 300%, allowing the cured silicone layer to deform with the textile substrate.
One of the defining characteristics of IOTA LSR 3M40-45 is its high mixed viscosity.
The individual components have significantly different viscosities:
Part A: 300 mPa·s
Part B: 80,000 mPa·s
Mixed product: 76,000 mPa·s
The approximately 76,000 mPa·s mixed viscosity at 23°C is designed for textile coating and scraping applications where the silicone needs sufficient body to remain on the fabric surface.
This property can help achieve a fuller and more controlled silicone coating on lace structures.
The recommended mixing ratio is A:B = 2:100 by weight.
This means:
2 parts Component A
100 parts Component B
The platinum catalyst is contained in Component A.
Because the curing system is sensitive to catalyst poisoning, the two components should be handled according to the manufacturer's processing requirements.
For every 100 kg of Component B, use approximately 2 kg of Component A.
For every 50 kg of Component B, use approximately 1 kg of Component A.
For every 10 kg of Component B, use approximately 0.2 kg of Component A.
Accurate metering is important because the product is designed around the specified 2:100 mixing ratio.
IOTA LSR 3M40-45 uses a platinum-catalyzed addition-curing system.
The platinum catalyst is contained in Component A.
This means processing equipment, pigments, additives and substrates should be evaluated for compatibility with platinum-catalyzed silicone systems.
Catalyst poisoning must be avoided during processing.
Potential contamination from incompatible materials can interfere with the curing reaction. Therefore, clean and dedicated processing equipment is recommended when working with platinum-cured silicone.
IOTA LSR 3M40-45 is supplied as a transparent silicone system.
When coloring is required:
The colorant should be added to Component B first. After the colorant is thoroughly mixed into Component B, the specified amount of Component A should be added.
Do not add colorant directly to Component A unless its compatibility with the platinum catalyst has been verified.
This processing sequence helps reduce the risk of catalyst contamination and incomplete curing.
The cured IOTA LSR 3M40-45 provides flexible mechanical performance.
| Mechanical Property | Typical Value |
|---|---|
| Hardness | Shore A 30 |
| Tensile Strength | ≥6 MPa |
| Elongation at Break | ≥300% |
| Tear Strength | ≥15 kN/m |
| Appearance | Transparent |
The combination of Shore A 30 hardness and ≥300% elongation makes the cured silicone suitable for flexible textile applications.
The silicone layer can maintain flexibility while providing a defined anti-slip coating on the textile surface.
The primary application is silicone coating for lace borders and lace fabrics.
The silicone layer can create a higher-friction surface while maintaining the flexibility and appearance of the lace.
The material can be used for textile components that require localized anti-slip properties.
Potential applications include:
Lace borders
Garment trims
Elastic textile components
Clothing accessories
Textile grip areas
The high-viscosity formulation can also be considered for selected textile coating processes where controlled silicone deposition and good substrate adhesion are required.
The manufacturer also identifies other coating products as a potential application category.
Final suitability should be confirmed through application testing because textile type, coating thickness, surface treatment and curing conditions can affect adhesion and finished-product performance.
High elongation helps the cured silicone coating accommodate deformation of flexible textile substrates.
Lace fabric can bend, stretch and deform during manufacturing and use.
IOTA LSR 3M40-45 provides a listed elongation at break of ≥300%.
This means the cured silicone material has substantial elastic deformation capability before tensile failure under the specified test conditions.
