Chat & Social > The Bar - General Chat
Silicone sealant
ibexman:
Some types of the automotive RTV (room temperature vulcanising) sealant you can paint over - sikaflex for example. Ordinary bathroom silicon sealant you cant.
dom
Hightower:
--- Quote from: "muddysteve" ---if you need some i can get standard gun sized tubes of black polyU for nowt
--- End quote ---
Be careful, you'll probably have a few takers on that offer . . . . :wink:
laser_jock99:
--- Quote from: "thermidorthelobster" ---Can anybody tell me if white silicone sealant sold in big tubes cheaply for home plumbing jobs is different in any way from black silicone sealant sold in small tubes expensively for automotive use?
I need to seal up the air hoses and air box drain valve on the Disco for wading purposes, and I don't want to go out and buy ever more sealant from the motor factors at great expense if I can use the stuff that's already in the garage!
Thanks.
--- End quote ---
DIY bathroom stuff will contain acetic acid cure- be wary of using it on or near metals as it may cause rust (don't use it around your windscreen for instance!!)
Dow Corning make low outgassing, non-acidic cure RTV's which can be safely used on ferrous metals. Some specialist auto sealants will be of this type- and hence more expensive.
If it smells of vinigar- don't use it near metal. Normal 'bathroom' silcone will be okay on plastics though.
Nevillef
muky-kid.:
:D DPG is in the motor trade ( mostly bodywork ) and he uses Sikerflex which is a very strong bonding agent like silicone sealant but much stronger, and is safe to use againgst metals etc. Be ideal for blocking a phew holes up on plastic as its dry to the touch but still retains some flexability so wont crack or fall off.
Just a thought.... :D
thermidorthelobster:
--- Quote from: "muddysteve" ---if you need some i can get standard gun sized tubes of black polyU for nowt
--- End quote ---
By the way - yes please!
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