SikaLastomer-831E – Grey sealing tape

Features

SIKA SikaLastomer 831 E Removable Butyl Sealant – Sealing for Motorhomes and Campervans

The perfect Sikalastomer sealant for van and motorhome roofs

The SIKA SikaLastomer 831 E removable butyl sealant is the ideal solution for ensuring a perfect seal on the roof of your motorhome, van, or campervan. This sealant in roll form is easy to use and particularly effective for installations requiring easy removal.

It is perfectly suited for installing skylights, air conditioners, roof vents, or any other screwed or riveted roof accessories that require a perfect seal.

🔧 A butyl sealant that's easy to apply and remove
Available in rolls of 12 to 25 meters and in thicknesses of 1.5 mm or 3 mm, SikaLastomer 831 E sealant can be applied without special tools. Simple pressure between the two surfaces is enough to ensure a durable seal, 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 remove your equipment without damaging the surfaces. Simply clean the residue with a knife and a disposable paper towel to leave the surface clean and free of traces.
Compatibility with all materials

Formulated with polyisobutylene (butyl), this sealant is compatible with a wide variety of materials: metal, plastic, aluminum, polyester, etc. It is resistant to weathering, vibrations, and temperature variations, making it a product perfectly suited for recreational vehicles.

Vibration reduction

SikaLastomer 831 E doesn't just provide a seal: in its thicker form, it also acts as a vibration damper, thus extending the lifespan of your installations and improving comfort inside your vehicle.

❓ What is a removable butyl sealant? A removable butyl sealant is a flexible sealing compound that hardens very little over time. It allows you to attach components without permanent bonding, while providing a watertight and airtight barrier.

❓ Can this sealant be used on a polyester or metal roof?

Yes, 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 UV and weather resistant?

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

❓ Is the sealant repositionable?

Yes. Since it does not bond permanently, you can remove and reposition your accessories without damaging or soiling the surfaces. For a reliable and 100% watertight installation, it is best to replace the sealant.

❓ Is this sealant suitable for screwless mounting?

It is ideal for installations with screws, counterframes, or rivets, but not for purely adhesive installations. It provides waterproofing, but not mechanical fastening.

❓ Why choose Sika butyl sealant for your converted van?

SIKA SikaLastomer 831 E sealant is recognized by RV professionals for its reliability, ease of application, and its ability to last over time without hardening. It is perfect for all sealing work on the roof of your converted van, 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: gray
Type: removable butyl sealant
Easy to apply, remove, and clean