greenhouse shading wash

Has anyone used shading wash for the greenhouse glass,i would lie to try this for next summer,blinds for my greenhouse are very expensive,will this work and where is the best place to buy it.

Thanks for the reply,i will have a look next time i am near a garden centre.

hi the greenhouse shading wash was called coolglass it may have changed its name there was 2 sorts one stayed white all the time the other went clear when dull then white when the sun came up if you cant find it at a garden center try a horticultural wholesaler some sell retail packs  jezza