IOTA CORPORATION LTD
Medical Grade Two-Component Addition-cured Liquid Silicone Rubber for Silicone Tubing IOTA LSR 3930 Series
Low hardness Liquid Silicone Rubber For Medical Products IOTA LSR 327L Series
Medical Grade Liquid Silicone Rubber for Negative Pressure Balls IOTA LSR 3650 Series
Medical Grade Liquid Silicone Rubber for Laryngeal Masks IOTA LSR 3950 Series
Product Introduction
The IOTA LSR 3950 Series is a medical grade, two-component addition-cured liquid silicone rubber specifically designed for laryngeal masks.
Main Features
Excellent biocompatibility
Complies with USP Class VI and ISO 10993
Two-component, 1:1 mixing ratio
Excellent mold release
Fast thermal curing
Excellent mechanical properties
Typical Applications
Laryngeal masks and other medical products
Important Notes
IOTA LSR 3950 A/B is a product cured using a platinum catalyst. The platinum catalyst is in Component A. Strict attention must be paid during use to avoid catalyst poisoning.
Only Component A and Component B from the same batch number should be mixed and used together.
To ensure optimal fluidity and homogeneity, the material must be stirred thoroughly before being transferred to containers.
Technical Parameters
|
Property |
LSR 3950-50 |
LSR 3950-60 |
LSR 3950-70 |
Unit |
|
Uncured Product |
|
|
|
|
|
Comp. A Viscosity 23°C, 10S⁻¹ |
300 |
320 |
350 |
Pa·s |
|
Comp. B Viscosity 23°C, 10S⁻¹ |
250 |
280 |
320 |
Pa·s |
|
Product Data (A+B Mixed) |
|
|
|
|
|
Mixing Ratio (by weight) |
1:1 |
1:1 |
1:1 |
- |
|
Viscosity 23°C, 10S⁻¹ |
275 |
300 |
335 |
Pa·s |
|
Curing Time |
Refer to Curing Conditions |
|
|
|
|
Product Data (Cured) |
|
|
|
|
|
Density 23°C |
1.12 |
1.12 |
1.14 |
g/cm³ |
|
Hardness (Shore A) |
50 |
60 |
70 |
- |
|
Tensile Strength |
10 |
9 |
9 |
MPa |
|
Elongation at Break |
500 |
400 |
340 |
% |
|
Tear Strength |
40 |
35 |
32 |
KN/m |
|
Remarks |
Complies with ISO 10993 |
|
|
|
Packaging Information
Component A: 200 kg/drum, Component B: 200 kg/drum
Storage and Shelf Life
When stored unopened below 23°C, the shelf life is 12 months. The best use-by date is marked on the label of each product's external packaging.
