> Has anyone any advice on repairing some goretex trousers with a small tear in them
How small? If really small I'd sew it up and then put seam grip over it. Slightly bigger, then patch it. I got spinnaker tape as everyone raved about it, but I've found it rather rubbish at staying stuck down. If you paint seam grip around the edge it does stay stuck on. Friend have used the goretex iron on patches with great success, I just always balked at the price!
> and a pertex belay jacket with two small tears in it. Thanks in advance.
Sew them up. Stick some duct tape over if you want the hard man image.
That's the stuff. My oldish skiing jacket has a triangular 4 inch tear... I used that tape and 3-4 years on it is still stuck down firmly (though a few corners of the tape come off) , despite having gone through the wash a few times. Quite incredible.