What is the difference between peroxide and platinum silicone?

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
Silcon® Med-X
Tygon® 3370 I.B.
(braid reinforced)
Tygon® 3350 Sanitary

Peroxide Cured
Silcon®
Silbrade ®
(braid reinforced)
Versilic™ SPX-50 High Strength

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.

Article Title:
What is the difference between peroxide and platinum silicone?
Article Summary:
Overview of the silicone tubing products that we offer.
Article Date:
11/2/2010
Article ID:
879
11 user(s) found this article useful. Was this article useful to you?
Share

Information disclaimer:

The information contained in this article is for general information purposes only. The information is provided by United States Plastic Corp. and while we endeavor to keep the information up to date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the website or the information, products, services, or related graphics contained on the website for any purpose. Any reliance you place on such information is therefore strictly at your own risk.

In no event will we be liable for any loss or damage including without limitation, indirect or consequential loss or damage, or any loss or damage whatsoever arising from loss of materials, time or profits arising out of, or in connection with, the use of this information.