Suitable substrate materials include timber, glass, metals, metal primers and paint coatings (2-part systems), ceramic materials and plastics. Use Sikaflex 522 to fit and seal motorhome ladders, roof racks, caravan bike racks, trims and high top roofs as it creates a strong bond and simutaneously seals screw and bolt holes in the vehicle bodywork. Sikaflex 512 has now been replaced by 522 - the sealant is exactly the same but just an updated version. This multipurpose adhesive sealant from SikaFlex is ideal for caravan and motorhome construction and repair. I look forward to other comments, agreeing or otherwise, arriving soon (hopefully they will provide links to various sources which give examples of jobs that have been done.

Sikaflex 522 Caravan Adhesive Sealant - White - Camperlands UK Sikaflex 522 Caravan Adhesive Sealant - White - Camperlands UK

I should have had a tube of it by now but sadly Hermes couldn't find Sainsbury's in Paignton so it never arrived. Sika EBT is named for its elastic bonding technology which bonds to brick, mortar, wood, metals, glass, resins and plastics.

It bonds to a wide variety of surfaces and is perfect for those wishing to create permanent elastic seals of high adhesive strength.

Sikaflex®-522 | Adhesive Sealants

Sikaflex®-522 adheres well to a wide variety of substrates and is suitable for interior and exterior elastic sealing and bonding applications. Sikaflex 522 is also suitable for the replacement of joints on both caravan marine and other vehicular construction projects.If painting process takes place after the sealant has built a skin, adhesion could be improved by treating the joint surface with Sika® Aktivator-100 or Sika® Aktivator-205 prior to paint process. Surface treatment depends on the specific nature of the substrates and is crucial for a long lasting bond. It’s been sat in a barn for 30 years so is dead dry, but has not had any real maintenance during that time. Very easy to use but doesn't seem flexible enough to me and may not fill the gap completely although several users appear to be satisfied. Consider that these suggestions are based on experience and have in any case to be verified by tests on original substrates.

Sika Sikaflex | Sikaflex EBT | Screwfix Sika Sikaflex | Sikaflex EBT | Screwfix

Seek manufacturer’s advice and perform tests on original substrates before using Sikaflex®-522 on materials prone to stress cracking. Suitable for the sealing and bonding of various applications internally and externally in caravans and motorhomes, including skylights and aerators. Sikaflex®-522 can be processed between 5 °C and 40 °C (climate and product) but changes in reactivity and application properties have to be considered. Tests with actual substrates and conditions have to be performed ensuring adhesion and material compatibility.Sikaflex 522 is both an adhesive and sealant making it ideal for caravan, motorhome and trailer repairs as well as DIY fitting of caravan vehicle accessories.

Sikaflex 522 or mastic sealing strip for railing? - Caravan Sikaflex 522 or mastic sealing strip for railing? - Caravan

Sikaflex 522 adhesive is recommened for sealing DIY awning rail installation as it gives a stronger bond to the rail and the flexible seal will not shrink or crack over time. Americans seem to use a sealing strip when regluing the railing; us Brits seem to like to use Sikaflex 522.Uncured Sikaflex®-522 can be removed from tools and equipment with Sika® Remover-208 or another suitable solvent. Also stainless screws (e-bay, get the right length and head shape) would be useful rather than anything that may corrode?