AndyB1 Posted January 29, 2020 Share Posted January 29, 2020 The vertical seal on a back corner of my Burstner Solano is looking ropey with a gap along one side. There is damp in the corner of the external cupboard immediately behind it. My plan is to clean out the gap as best I can and fill it with sikaflex 512. Is this a good plan? 1st pic to orientate, 2nd shows gap. Thanks for any advice. Link to comment Share on other sites More sharing options...
niktam Posted January 30, 2020 Share Posted January 30, 2020 I'd like to know the answer to this and how do you get the old mastic out? A knife? Link to comment Share on other sites More sharing options...
Derek Uzzell Posted January 31, 2020 Share Posted January 31, 2020 This link may help https://www.1carpc.co.uk/wcdr/front-body-to-roof---rail-reseal.-plus-lower-front-awning-rails---reseal.htm The link is also referred to in this 2018 forum thread https://forums.outandaboutlive.co.uk/forums/Motorhomes/Motorhome-Matters/Replacing-exterior-panel-seals/49829/ It will be necessary to completely remove sealant that has become detached from a body-panel before resealing is attempted. It’s probable that the sealant originally employed on Andy’s motorhpme will have been constructional-adhesive type (not a soft ‘mastic’) and removal will need a sharp knife or wood chisel and then a plastic scraper to get the residue off. (DIYers will need to use their initiative when tackling tasks like this.) It would be sensible to stick a few layers of masking tape each side of the old sealant to provide some protection against scratching should the tool slip. Anyway, all the old seal needs to be removed and the area it covered be scrupulously cleaned before resealing. Sikaflex-512 Caravan’s use is described here https://gbr.sika.com/dms/getdocument.get/81048499-d15c-3eda-923f-148ccae8cd26/Sikaflex%20512%20Caravan.pdf and the principles involved will apply generally. A potential drawback with Sikaflex-512 Caravan is that it is only available in white and this would stand out on Andy’s motorhome. SIKA (and other manufacturers) offer products in different colours - for example Sikaflex EBT+ is available in grey - and could provide a better colour match. It might be worth contacting SIKA for advice Technical Support For technical support on Sika-Trocal products and systems, please contact a member of our technical services team. Tel: 01707 394444 Link to comment Share on other sites More sharing options...
jumpstart Posted January 31, 2020 Share Posted January 31, 2020 Get a tub of silicone remover from Toolstation. Bit messy but does work. Link to comment Share on other sites More sharing options...
thebishbus Posted January 31, 2020 Share Posted January 31, 2020 Another alternative sealer, is Ever Build "Stixall." (A Sika company) Black, White, Grey, Clear and I think cheaper than Sikaflex. Brian B. (Spelling of Sikaflex corrected for clarity - Mod) Link to comment Share on other sites More sharing options...
Derek Uzzell Posted January 31, 2020 Share Posted January 31, 2020 Everbuid “Stixall” was mentioned in this 2012 MHFacts thread https://forums.motorhomefacts.com/185-bodywork-trim/98795-alternative-sikaflex-diy-repair.html https://www.everbuild.co.uk/product/stixall/ The grey variant is advertised on ebay for £5.84 (free postage) https://www.ebay.co.uk/p/1504308760 Link to comment Share on other sites More sharing options...
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