Stretching Watercolour Paper 
perfect every time.

stretching watercolour paper get it right every time fast and easy with David why not Join the Tuesday Zoom Watercolour Workshop further details click the link below. 
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Step 1 What you'll need

As I said earlier if your paper is 140lb (300gsm) or less you will need to stretch it onto a suitable base first. Not hard to do - you don't require any fancy equipment. Just a flat wooden board, a sponge, an old towel and Gummed paper packing tape. Oh a container of water, I use the one I paint with (a large plastic fizzy drink bottle with the top sliced off.

Step 2 The Method.

Lay the towel flat over the base board you're going to stretch the paper on.

Step 3

Lay the paper onto the towel.
Tear off 4 pieces of the gummed paper tape, relative to the paper size i.e. obviously about an inch or so longer than each edge.

Step 4 the fun bit!

Soak the sponge in the water and liberally sponge both sides of the paper, doesn't realley matter how much water you use.. thearapy time
give the paper a good bath