Vallejo Thinner medium how do I use this? - + GENERAL PCA QUESTIONS + - The Bolter and Chainsword

I've never used a thinner before. Last night I picked up Vallejo medium thinner. I've known for a while my results would look better if I thinned my GW paints a little . So how do I use this? Thanks.

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Extend the colors Can also be used with VJ70524 color and game color Made in Spain Package dimensions: 1.0 L x 1.0 W x 3.13 H

Vallejo Thinner Medium, 17 ml

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