The BSA A7-A10 Forum

Technical => Lucas, Electrical, Ignition => Topic started by: RoyC on 10.10. 2017 20:57

Title: Waterproofing
Post by: RoyC on 10.10. 2017 20:57
Can any one tell me what that black rubbery stuff is that is used to waterproof where the wires enter the indicator mounting tube ?
I need to get some.
Thanks
Roy.
Title: Re: Waterproofing
Post by: Greybeard on 10.10. 2017 21:02
This?
Title: Re: Waterproofing
Post by: RoyC on 10.10. 2017 21:15
Can any one tell me what that black rubbery stuff is that is used to waterproof where the wires enter the indicator mounting tube ?
I need to get some.
Thanks
Roy.

I found this on ebay   http://www.ebay.co.uk/itm/Geocel-Auto-Silicone-Rubber-Sealant-Instant-Gasket-Windscreens-Repairs-10-Y-/222605691896?epid=1405550795&hash=item33d4554bf8:g:x-4AAOSwqVxZiIGm
Title: Re: Waterproofing
Post by: Greybeard on 10.10. 2017 21:16
I haven't found any DumDum in a can online. It is available on a roll though.
Title: Re: Waterproofing
Post by: Topdad on 11.10. 2017 10:55
I thought that was for exhausts ?
Title: Re: Waterproofing
Post by: Greybeard on 11.10. 2017 14:20
I thought that was for exhausts ?
I seem to remember Gun gum for exhausts.
Title: Re: Waterproofing
Post by: Black Sheep on 11.10. 2017 14:45
Dum Dum is used to seal old Land Rover windscreens and can be quite challenging to remove after 60+ years..
Title: Re: Waterproofing
Post by: BSA_54A10 on 17.10. 2017 09:05
I think you will find Gun Gum was the original product whic was applied with a calking gum , also used to cover welds prior to painting in place of grinding them to dress them.
Dum Dum I think was a similar knock off product.
Title: Re: Waterproofing
Post by: Greybeard on 17.10. 2017 09:25
I think you will find Gun Gum was the original product whic was applied with a calking gum , also used to cover welds prior to painting in place of grinding them to dress them.
Dum Dum I think was a similar knock off product.


Gun gum, sold here for exhausts sets hard. I could see it being used for the purposes you mention. DumDum is/was a gloopy paste that when sets is like tough rubber.