Thixofix, yes that's what it says on the link I posted. I bought a 5 litre tin of it at the local tip, together with 2 large tins of black Hammerite smooth all for a fiver. But when I dump stuff I usually find something of interest! But always a bone of contention returning with almost as much stuff as I dumped! But I had to say no to all those Val Doonican LPs & amazing numbers of golf clubs that these dump people salvage for sale.