Open steam curing, vulcanization

Autoclave curing Open steam curing Hot water curing Self-vulcanizing Cold bond lining and... 

Open steam cure - A method of vulcanization in which the steam is in direct contact with the product being vulcanized at atmospheric pressure. 

Vulcanization may be by moulding in a press, hot-air or open-steam methods, although the open-steam cured rubbers are often softer than the others. Low-temperature vulcanization (140-160°C) gives vulcanizates with better physical strength than do higher temperatures (> 160°C). 

Steam cure (open) - A method of vulcanizing rubber parts by exposing them directly to steam. 

Transmission Oil Cooler Hose compounds are shown in Table 5.24 in which two non-post-cure systems are given. Both the NPC-25 and Zeonet system provides low compression set without post-cure. The temperature of the NPC-25 compound during processing must NOT exceed 85°C, as measured in the stock. During vulcanization, a moisture barrier such as Mylar film should be wrapped on under the nylon tape. The Zeonet cure mechanism also does not require a post-cure and it has the added advantage that it may be used in open steam without a moisture barrier. 

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