Removable Butyl Sealant SIKA SikaLastomer 831 E – Waterproofing for Motorhomes and Converted Vans
The perfect waterproofing Sikalastomer for the roof of the van and motorhome
The removable butyl sealant SIKA SikaLastomer 831 E is the ideal solution to ensure perfect waterproofing on the roof of your motorhome, van, or converted van. This roll sealant is easy to use and particularly effective for installations requiring easy disassembly.
It is perfectly suited for the installation of skylights, air conditioners, roof vents, or any other roof accessory that is screwed or riveted and requires perfect waterproofing.
🔧 A butyl sealant that is easy to install and remove
- Available in rolls of 12 to 25 meters and in thicknesses of 1.5 mm or 3 mm, the SikaLastomer 831 E sealant can be applied without specific tools. A simple pressure between the two surfaces is enough to ensure durable waterproofing, thanks to the high elasticity of the butyl.
- This sealant does not stick permanently : it remains flexible but dry to the touch, allowing you to disassemble your equipment without damaging the surfaces. You just need to clean the residues with a knife and disposable paper to keep the surface clean and free of marks.
Compatibility with all materials
Formulated from polyisobutylene (butyl), this sealant is compatible with a wide variety of materials: metal, plastic, aluminum, polyester, etc. It withstands weather conditions, vibrations, and temperature variations, making it a product perfectly suited for recreational vehicles.
Vibration reduction
The SikaLastomer 831 E not only ensures waterproofing: in thickness, it also acts as a vibration dampener, thus extending the lifespan of your installations and improving comfort on board your vehicle.
❓ What is a removable butyl sealant?
A removable butyl sealant is a flexible sealing joint that does not harden much over time. It allows for the fixing of elements without permanent adhesion, while ensuring a waterproof barrier against water and air.
❓ Can this sealant be used on a polyester or metal roof?
Yes, the SikaLastomer 831 E is compatible with polyester, aluminum, metal, and plastics. It is therefore suitable for all types of roofs of converted vehicles or boat decks.
❓ Is it resistant to UV and weather conditions?
The SikaLastomer 831 E is not designed to withstand prolonged UV exposure. For an aesthetic and waterproof finish, it is recommended to apply a Sikaflex 522 on the edges of the equipment.
❓ Is the sealant repositionable?
Yes. Since it does not stick permanently, you can disassemble and reposition your accessories without damaging or soiling the surfaces. Prefer replacing the sealant for a reliable and 100% waterproof installation.
❓ Is this sealant suitable for a screwless installation?
It is ideal for installations with screws, counter-frames, or rivets, but not for installations that are only glued. It ensures waterproofing but not mechanical fastening.
❓ Why choose Sika butyl sealant for your converted van?
The SIKA SikaLastomer 831 E sealant is recognized by motorhome professionals for its reliability, ease of application, and ability to last over time without hardening. It is perfect for all waterproofing work on the roof of your converted van, whether for a new installation or a replacement.
Technical specifications of the SikaLastomer 831 E sealant
- Roll length: 12 m or 25 m
- Width: 12 / 20 / 25 mm
- Thickness: 1.5 mm or 3 mm
- Color: gray
- Type: removable butyl sealant
- Easy to install, disassemble, and clean
