Was very pleased with performance of Gripfill. It can be worked with easily and has grip even before setting. Very much a need to work quickly though as it is pretty well set within 5 minutes. If possible it would be wisest to work in stages so the fast setting time does not become a problem. with this kind of dispenser the product will continue to exude from the nozzle a little while once the sealant gun gets it moving. Therefore take account of this in judging the amount you need, or have some other work handy that the excess can be used for. I think it very likely you will be as pleased as i was using this product.