Removable Butyl Sealant SIKA SikaLastomer 831 E – Waterproofing for Motorhome and Campervan

The perfect Sikalastomer waterproofing for the roof of your campervan and motorhome

The removable butyl sealant SIKA SikaLastomer 831 E is the ideal solution to ensure perfect waterproofing on the roof of your motorhome, campervan, or converted van. This roll sealant is easy to use and particularly effective for installations requiring easy disassembly.

It is perfectly suited for installing roof lights, air conditioners, roof vents, or any other screwed or riveted roof accessory that requires perfect waterproofing.

🔧A butyl sealant that is easy to apply and remove

• Available in rolls of 12 to 25 meters and thicknesses of 1.5 mm or 3 mm, the SikaLastomer 831 E sealant can be applied without special 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 dismantle your equipment without damaging the surfaces. You just need to clean the residue 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 resists weather, vibrations, and temperature variations, making it perfectly suited for leisure vehicles.

Vibration reduction

The SikaLastomer 831 E does more than ensure waterproofing: in thickness, it also acts as a vibration damper, 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 hardens little over time. It allows fixing elements without permanent bonding while providing 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 on converted vehicles or boat decks.

❓ Is it resistant to UV and weather?

The SikaLastomer 831E is not designed to withstand prolonged UV exposure. For an aesthetic and waterproof finish, it is recommended to apply Sikaflex 552AT on the edges of the equipment.

❓ Is the sealant repositionable?

Yes. Since it does not stick permanently, you can dismantle and reposition your accessories without damaging or dirtying the surfaces. Prefer replacing the sealant for a reliable and 100% waterproof assembly.

❓ Is this sealant suitable for assembly without screws?

It is ideal for assemblies with screws, counter-frames, or rivets, but not for assemblies that are only glued. It ensures waterproofing but not mechanical fastening.

❓ Why choose Sika butyl sealant for your campervan?

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 campervan, whether for a new installation or a replacement.

Technical specifications of SikaLastomer 831 E sealant

• Roll length: 12 m or 25 m
• Width: 12 / 20 / 25 mm
• Thickness: 1.5 mm or 3 mm
• Color: grey
• Type: removable butyl sealant
• Easy to apply, remove, and clean