The Wonderful World of Fake Blood
Fake blood can be used to create many different effects. It can make a fake wound look fresh or make your character look quite blood-spattered.
Depending on the desired effect, there are different ways to apply fake blood to make it look realistic.
Always make sure that no fake blood gets in your eyes. It is best to avoid the area around the eyes as much as possible or cover your eyes if you are splattering it on your face.
Bloody Wounds
To make a bloody wound look realistic, the basic must already look like a real wound. This can be achieved with a prosthetic or with, for example, liquid latex and modeling wax.
Use a brittle sponge to dab some fake blood around the wound. Make sure you can still see the skin underneath so it looks realistic.
You can also fill the wound with fake blood and let some blood run out of the wound. To make flowing blood look real, apply the blood with a large eyedropper or a syringe. This makes it easier to make the blood flow naturally.
If you want the dripping blood to look a bit thicker, you can mix in a small amount of liquid latex. By applying thinner and thicker consistencies, you can make the blood look more realistic.
Scab blood can be used for realistic scrapes and abrasions or to make a larger wound look somewhat crusty.
For abrasions, apply the scab blood with the edge of a spatula.
For scrapes, dip a coarse sponge in the scab blood and lightly drag the sponge over your skin.
If you want to add some scab blood to a larger wound, you can use a toothpick or a small brush to apply it into the wound.
Blood Splatters
There are two ways to create blood splatters. One will result in larger splatters, while the other will result in fine splatters.
To create larger splatters, dip your finger or the end of a pencil/brush into the fake blood and wipe it towards the area where you want the splatters.
You can make fine splatters by dipping a coarse brush or toothbrush into the fake blood and dragging your finger over the bristles of the brush. You can also use a blood spray for this effect.
Splatters are always difficult to aim. Cover the surrounding surfaces with plastic to prevent blood from getting on them. Or make sure you stand somewhere that you can't accidentally stain other surfaces.