But not Permabond F201, which contains a unique rubber toughening system that makes it flexible enough to cope in applications where there are high peel stresses, thermal shock or differential expansion and contraction issues. Typical peel strength of F201 on aluminium is 100 N/25mm – a normal anaerobic sealant would be less than a tenth of that.
Permabond F201 is said to be a favourite of boiler manufacturers, copper cylinder manufacturers and installers, and is said to be ideal for use on copper and brass pipework connections, even when bonded to other metals. It 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.
Other benefits of Permabond F201 include:
- Single component – no need to mix
- Cures fully at room temperature on close-fitting metal parts
- Handling time on mild steel is less than 15 minutes
- WRAS approval – safe for use with drinking water systems
If the viscosity of F201 is not suitable, both lower viscosity (Permabond F200) higher viscosity (Permabond F202) grades are available.
Products are available in 10 x 50ml bottles, 5 x 200ml bottles and 1 x 2 litre bulk.
