It's important to keep the sealant on your caravan clean for a number of reasons. The primary function of sealant is to prevent water from penetrating the joints and seams of your caravan. Over time, dirt and grime can accumulate on the sealant, compromising its effectiveness and potentially leading to water leaks. By keeping the sealant clean, you can ensure that it provides a reliable barrier against water intrusion.
Which product has the edge in the battle of the sealants? If you were simply comparing the cost of materials, on the face of it, silicone has it. You can source it for around £1 a cartridge, although at that price, the quality might not be the best.