Peroxide and platinum are used in the manufacturing and curing processes of silicone tubing. Both are catalysts that help convert silicone elastomer into tubing. The two types are naturally flexible and do not require the use of leachable plasticizers. Peroxide silicone tubing, which tends to be less costly, must be heated after the extrusion process to remove the catalyst; platinum needs no post-extrusion heating. Platinum-cured silicone tubing offers a smoother surface that resists sticking, encrustation, and bacteria growth.
Here are is a list of the different types that we offer.
Platinum Cured
Peroxide Cured
Physical Properties
| |
Silcon® |
Silbrade® |
Silcon® Med-X |
Tygon® 3350 |
Tygon® 3370 I.B. |
Versilic™ SPX-50 |
Durometer Hardness
Shore A |
50 ± 5 |
70 ± 5 Core
60 ± 5 Cover |
50 ± 5
|
50 |
70 |
50 |
| Tensile Strength, psi |
1100 |
1000 |
1100 |
1450 |
1200 |
1500 |
| Elongation at Break, % |
375 |
350 |
650 |
770 |
500 |
450 |
| Compression Set |
22 hrs @ 177°F
35% |
N/A |
22 hrs @ 177°F
35% |
22 hrs @158°F
7% |
22 hrs @158°F
3% |
22 hrs @158°F
10% |
Tear Resistance,
Die B ppi |
100 |
|
200 |
200 |
250 |
148 |
| Brittleness Temp °F |
-100 |
-80 |
-100 |
-112 |
-112 |
-112 |
| Max Operating Temp °F |
500 |
350 |
400 |
400 |
320 |
350 continuous
400 intermittent |
| Food, Beverage, & Medical use |
Made of FDA-sanctioned ingredients & NSF51 certified |
Made of FDA-sanctioned ingredients & NSF51 certified |
USP class VI |
3-A, FDA 21 CFR 177.2600, FDA GP-95 & NSF 51 |
USP class VI, 3-A & FDA 21 CFR 177.2600 |
USP class VI, 3-A, FDA 21 CFR177.2600 & NSF 51 |
Fitting selection - Care is recommended in the selection of fittings and clamps for silicone tubing as sharp barbed fittings or unlined metal clamps could tear into the tubing wall and possibly cause a failure.
Sterilizing – Silicone can be steam sterilized in-line, or autoclaved at up to 250°F in a normal autoclave cycle. However, if exposed to repeated stem sterilization or long term high temperature or pressure, silicone will eventually relax and become gummy. It should then be replaced.
Title: What is the difference between peroxide and platinum silicone?
Description: Overview of the silicone tubing products that we offer.
Published: 11/2/2010
Last Edited: 1/23/2023
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