Motorhome & Caravan Fixed Window Seals

Older motorhomes and caravans with non-opening windows often use fixed window rubbers to firmly hold the glass into the aperture on the van. These were commonly used by manufacturers such as Sprite but can be found in over cab windows in motorhomes and caravans built by other manufacturers. As these seals are fitted on the exterior of the van, they can shrink, perish and become less effective with constant exposure to the elements. Replacing these parts is often necessary to prevent water and moisture entering the vehicle and causing damp issues in the wooden frame.

Fixed window rubbers are available in a selection of sizes depending on the thickness of the glass and thickness of the panel. The glass and panel are inserted into two gaps in the window rubber, referred to as ‘Gap A’ and ‘Gap B’. Whilst fixed window rubbers can seal approximately -1mm (for example, a 2mm-3mm thick panel can be inserted into a 3mm gap), we do not recommend inserting anything thicker that the gap size into the gap. It is also important to consider the ‘Web’ thickness which relates to the thickness of the solid piece of rubber between the two gaps. This stipulates how much smaller the glass should be in relation to the aperture.

These motorhome and caravan fixed window rubbers require a filler strip to firmly hold the seal in place and apply compression onto the glass and panel. They can be purchased in either black, chrome or white to suit the other fixings and fixtures on your motorhome or caravan. We also recommend that you bed the rubber in with a silicone sealant, such as S138.

The window seals on this page are suitable for fixed windows. Click here to view our range of motorhome and caravans double glazed opening window seals.