Ivaan Posted March 1, 2013 Share Posted March 1, 2013 Just to let others know Sikaflex 292 does the job! Tried quiet a few others, but even after curing for over a week, I was able to peel the wings off by hand. I roughed up the area under the wing with sandpaper then degreased with brake cleaner. First stuck the wings onto the top of the stays with a small bead of 292, then after 3 - 4 days, got underneath and completely surrounded the stay with more and spread across a larger area of the wing. Now stuck like ..err..glue 😬 Edited by - Ivaan on 1 Mar 2013 11:36:25 Link to comment Share on other sites More sharing options...
Myles Posted March 1, 2013 Share Posted March 1, 2013 I used TigerSeal on my Westie wings. I, too, used a combination of sandpaper and scoring with a sharp knife - works fine. Link to comment Share on other sites More sharing options...
glasgow Posted March 1, 2013 Share Posted March 1, 2013 Tried quiet a few others, but even after curing for over a week, I was able to peel the wings off by hand. Juts for members' experience, what did you try? Ahmed Link to comment Share on other sites More sharing options...
myothercarsa2cv Posted March 1, 2013 Share Posted March 1, 2013 I'm not sure I'd degrease with brake cleaner... isn't it designed to be burned off by hot brakes rather than by evaporation? White spirit might be better? Link to comment Share on other sites More sharing options...
Lee Fowler Posted March 1, 2013 Share Posted March 1, 2013 Acetone would be better. Lee Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted March 1, 2013 Member Share Posted March 1, 2013 Won't acetone dissolve rather than degrease ABS? Jonathan Link to comment Share on other sites More sharing options...
Lee Fowler Posted March 1, 2013 Share Posted March 1, 2013 Need to quick!! Lee Link to comment Share on other sites More sharing options...
gundersen Posted June 11, 2013 Share Posted June 11, 2013 Until yesterday I was a firm believer of Sikaflex, but loosing a wing down the straight at full chat is scary! I had roughed up the area with the back of a knife, degreased with white spirit and let them cure for three days before driving. And the wings stayed on for about a year, until yesterday. So, from now on it will be bolts for me 😬 Link to comment Share on other sites More sharing options...
Klunk Posted June 11, 2013 Share Posted June 11, 2013 White spirit might remove waxy/oil coatings but always leaves an oil film. In my experience meths is very good at removing oil films and providing a good clean surface to paint/stick things to. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted June 11, 2013 Member Share Posted June 11, 2013 Quoting gundersen: Until yesterday I was a firm believer of Sikaflex, but loosing a wing down the straight at full chat is scary! I had roughed up the area with the back of a knife, degreased with white spirit and let them cure for three days before driving. And the wings stayed on for about a year, until yesterday.Did you make a sleeve or tube of Sikaflex around the wing stay or only a sandwich ? Thanks Jonathan Edited by - Jonathan Kay on 11 Jun 2013 12:32:43 Link to comment Share on other sites More sharing options...
gundersen Posted June 11, 2013 Share Posted June 11, 2013 Only a sandwich between the bigheads and the wings, used two bigheads for each end of the wing so four bigheads pr. wing. But it was the bond between the sikaflex and the wing that broke away, so I can't see any amount of sleeving/tubing fixing that. Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted June 11, 2013 Share Posted June 11, 2013 As mentioned above, white spirit alone is not enough. You need to clean thr inside of the wing with acetone (nail varnish remover) before applying the Sikaflex. Big runs of it under the wing and around the stay to encapsulate it. It is not suitable for a small sandwich layer under bighead fasteners. You need a two-part acrylic FS adhesive for that. Link to comment Share on other sites More sharing options...
7 wonders of the world Posted June 11, 2013 Share Posted June 11, 2013 Clean the surfaces with acetone or meths, white spirit will leave a resisdue. Link to comment Share on other sites More sharing options...
gundersen Posted June 11, 2013 Share Posted June 11, 2013 Reading your comments about white spirit I thought that can't be right, it doesn't leave any residue behind...but it seems that I and my lack of understanding of British household chemicals is the source of the confusion. What I used, and wrongfully termed white spirit, was denatured alcohol. As far as I know, it doesn't leave any residue behind. But as always this is an eternal argument, and people will always be split into gluers and bolters, and I just switched camp 😬 Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted June 11, 2013 Share Posted June 11, 2013 But it remains the case that Sikaflex is not designed to stick small metal plates like this, so it is not a product failure, but a mis-application. Link to comment Share on other sites More sharing options...
gundersen Posted June 11, 2013 Share Posted June 11, 2013 A mis-application perhaps, but one widely recommended on this forum Also: "Sikaflex®-292 is suitable for the structural jointing of marine components that are subject to a high degree of dynamic stress. Ideal applications include the bonding of the reinforcing grid and bulkheads to the hull shell, as well as the bonding of fly bridges, ceilings and rubrails or bumpers." quote: http://www.sika.com/ So if we are getting into pedantic mode, we are all mis-using it since it has been designed for marine use. Link to comment Share on other sites More sharing options...
Bob_r Posted June 11, 2013 Share Posted June 11, 2013 I find a few carefully positioned holes in the wing, and good quality cable ties are the perfect combination for track days and Racing. Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted June 11, 2013 Share Posted June 11, 2013 Not disputing it's use and suitability for tough applications and marine use ..... but there is a big difference between bonding large areas like bulkheads and ceilings ..... and a small square like a large postage stamp ..... with high loadings. Link to comment Share on other sites More sharing options...
I reply to every thread Posted June 11, 2013 Share Posted June 11, 2013 Quoting Stationary M25 Traveller: Not disputing it's use and suitability for tough applications and marine use ..... but there is a big difference between bonding large areas like bulkheads and ceilings ..... and a small square like a large postage stamp ..... with high loadings. Might be worth reading the tech data before making this sort of statement Link to comment Share on other sites More sharing options...
Z3MCJez Posted June 11, 2013 Share Posted June 11, 2013 Quoting Bob_r: I find a few carefully positioned holes in the wing, and good quality cable ties are the perfect combination for track days and Racing. Regularly replace cable ties, as cold temps and vibration lead to them eventually snapping. Is bonding wings the most talked about tech-talk item? Mine are bonded and riveted now, on the recommendation of a race team. Jez Link to comment Share on other sites More sharing options...
Area Representative IanW Posted June 11, 2013 Area Representative Share Posted June 11, 2013 I used Terostat MS939 to fix the bigheads to my wings. After an incident with the tyre wall at Castle Combe, it was the bighead that broke (the two loops became detached from the body). Link to comment Share on other sites More sharing options...
Grubbster Posted June 11, 2013 Share Posted June 11, 2013 I've never had any problem with sika 292 on fibreglass or carbon wings bonding on bigheads. Lots of high soeed testing, kerb hopping and so on for over 30,000 miles, no issues. Still a believer that if you clean everything properly it should never be a problem. On my Abs wings I used the acrylic bonding stuff from BigHead and again no issues so far. Hopefully I'm not speaking too soon! Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted June 11, 2013 Member Share Posted June 11, 2013 Is everyone's experience with the same type of Sikaflex? Jonathan Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted June 11, 2013 Member Share Posted June 11, 2013 Quoting gundersen: Reading your comments about white spirit I thought that can't be right, it doesn't leave any residue behind...but it seems that I and my lack of understanding of British household chemicals is the source of the confusion. What I used, and wrongfully termed white spirit, was denatured alcohol. As far as I know, it doesn't leave any residue behind.What was the local name of the solvent you used? Some "methylated spirits" = "denatured alcohol" contains added oil, usually petroleum oil. Jonathan Link to comment Share on other sites More sharing options...
Grubbster Posted June 11, 2013 Share Posted June 11, 2013 I know that sika 291 is not as good, cheaper and available in black (292 is only in white) as it is a sealant. I clean everything with IPA first. Link to comment Share on other sites More sharing options...
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