Kalrez® 6221 and 6230 discontinued – switch to evolast®
The manufacturer is ending production of these two FFKM compounds. Webshop orders are accepted until 27 November 2026. Plan your changeover to evolast® PB794 or PN794 now.
Questions
Kalrez® 6221 and 6230: what you need to know
The key points on the last order date, the delivery situation and the evolast® replacements — in one place.
- 01
Until when can I order Kalrez® 6221 and 6230?
Orders placed through the webshop until 27 November 2026 are passed on to the manufacturer. After that date, these two compounds can only be supplied while stocks last.
- 02
Will you still sell these parts after 27 November?
For these two compounds we will not place any further purchase orders after 27 November. We continue to sell our remaining stock until it runs out. Availability per article size is shown in the article table.
- 03
What is the alternative to Kalrez® 6221?
evolast® PB794. It is listed in the APSOparts standard assortment, with the available dimensions in the article table of the product page.
- 04
What is the alternative to Kalrez® 6230?
evolast® PN794. It is also part of the standard assortment, with its dimensions shown in the article table.
- 05
Does this affect every FFKM O-ring?
The product change notice covers the compounds 6221 and 6230. Some further compounds are affected as well, but they are not part of our standard assortment. If you are unsure whether a compound you use is affected, contact us via live chat or email and we will check it with you.
- 06
I use another affected compound. What now?
Start with Evolast: write to us or use the 1:1 live chat in seven languages, and we will help you compare temperature range, hardness and media exposure against your current application.
Last order date
Order the affected FFKM O-rings until 27 November 2026
After this date, the discontinued Kalrez® 6221 and 6230 O-rings can only be supplied while stocks last. Switch to evolast® PB794 or PN794 from our standard assortment.
View evolast®