{"id":3053,"date":"2021-03-23T11:45:13","date_gmt":"2021-03-23T11:45:13","guid":{"rendered":"https:\/\/permabond.com\/anaerobic-sealant-permabond-f201-toughened-flexible\/"},"modified":"2025-12-31T19:04:14","modified_gmt":"2025-12-31T19:04:14","slug":"anaerobic-sealant-permabond-f201-toughened-flexible","status":"publish","type":"post","link":"https:\/\/permabond.com\/de\/anaerobic-sealant-permabond-f201-toughened-flexible\/","title":{"rendered":"Permabond F201 Toughened, flexible, anaerobic sealant"},"content":{"rendered":"

Anaerobic sealants are characteristically very rigid, hard adhesives which work well in compression, torsion, and shear. But are notoriously brittle and unsuitable in applications where there could be peel or cleavage forces. When bonding dissimilar metals where differential expansion and contraction could be an issue, a regular anaerobic adhesive may struggle to flex to accommodate this change in dimension. Especially over a broad temperature range or where there is sudden thermal shock. Whereas Permabond F201 doesn’t it is a toughened, flexible, anaerobic sealant!<\/p>\n

Permabond F201 contains a unique rubber toughening system, which makes it flexible enough to cope in applications where there are high peel stresses, thermal shock or differential expansion and contraction issues.\u00a0 The typical peel strength of F201 on aluminium is 100 N\/25mm \u2013 a normal anaerobic sealant would be less than a tenth of that.<\/p>\n

Permabond F201 is a firm favorite with boiler manufacturers, copper cylinder manufacturers and installers. It is ideal for use on copper and brass pipework connections, even when bonded to other metals. In fact, F201 avoids having to weld, braze, or solder, is much easier to achieve leak free joints without any pin prick weld hole issues, and there is no need for a naked flame or high-risk process.<\/p>\n

Other benefits of Permabond F201 include:<\/p>\n