ericobrave Posted June 25, 2012 Share Posted June 25, 2012 Rebuilding 1991 110 tdi hardtop and just ready to rebuild the seatbox after treating the rust. Problem is what mastic to use in the seams between the steel and aluminium as I rivet them back together.I am thinking of a silicon sealant eg bathroom as I think this will help reduce contact and subsequent electrolysis. Any tips ? 1 Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted June 25, 2012 Share Posted June 25, 2012 Don't use a bathroom sealant, there are proper car ones like sikaflex or tiger seal http://forums.lr4x4.com/index.php?showtopic=27369 Quote Link to comment Share on other sites More sharing options...
mcc1979ian Posted June 25, 2012 Share Posted June 25, 2012 iv been using marine sealant, seems to be doing the job, once it sets it leaves a rubber mask between the 2 surfaces Quote Link to comment Share on other sites More sharing options...
ejparrott Posted June 25, 2012 Share Posted June 25, 2012 Sikaflex 221 is my goo of choice Quote Link to comment Share on other sites More sharing options...
Maverik Posted June 25, 2012 Share Posted June 25, 2012 and tiger seal is mine Quote Link to comment Share on other sites More sharing options...
ericobrave Posted June 25, 2012 Author Share Posted June 25, 2012 Thanks for that - will get some ordered 1 Quote Link to comment Share on other sites More sharing options...
Orgasmic Farmer Posted June 25, 2012 Share Posted June 25, 2012 Beware of using Tiger seal/Sikaflex if you think you may ever have cause to take it apart again! Once set it is a seriously strong adhesive. You will have to cut it apart with a very sharp blade which might not be possible in some of the corners. Better to go for a sticky backed foam strip on one surface like the original. On mine I used a double side butyl body tape I happened to have but left the backing on one surface to give me a fighting chance of getting the panels apart if necessary. Quote Link to comment Share on other sites More sharing options...
mcc1979ian Posted June 25, 2012 Share Posted June 25, 2012 good point, thats the good thing with marine sealant, it dosent stick like tiger seal but whilst creating a barrier also stops water getting in Quote Link to comment Share on other sites More sharing options...
UdderlyOffroad Posted June 25, 2012 Share Posted June 25, 2012 When I was at Newbury last time, the chap from YRM metal solutions told me to use simple insulating tape between the two. No I didn't like the sound of it either but I figured he would know. Hence I merely pass this nugget on. In aerospace they use this stuff between two dissimilar metals. Again, I've not used so merely pass it on. good point, thats the good thing with marine sealant, it dosent stick like tiger seal but whilst creating a barrier also stops water getting in iv been using marine sealant, seems to be doing the job, once it sets it leaves a rubber mask between the 2 surfaces Do you have a link to the stuff you've been using Ian? Quote Link to comment Share on other sites More sharing options...
mcc1979ian Posted June 26, 2012 Share Posted June 26, 2012 (edited) sorry im useless with links but can tell you its on ebay, item number 150445748001 if that helps Edited June 26, 2012 by western link added. Quote Link to comment Share on other sites More sharing options...
Snagger Posted July 1, 2012 Share Posted July 1, 2012 Paint the surfaces and then run a length of duct tape along the joint before fitting. Cheap, simple and perfectly adequate. Quote Link to comment Share on other sites More sharing options...
GW8IZR Posted July 1, 2012 Share Posted July 1, 2012 Denso tape is very useful here Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.