Everbuild 408 super seal exterior wall seal everbuild wallseal5 408 super seal is a spirit based transparent water repellent formulated to prevent attack by water penetration on brick stone concrete plaster rendering etc wall seal penetrates deep into the treated area to provide effective repellency for many years dries clear can be applied by spray brush or roller everbuild wallseal5 408 super seal exterior wall seal 5 litre