Spraying sealant in between applications is how layers are protected during the repaint process. It's much like what artists do, when illustrating with charcoal, to stop it smudging. It also enhances the colours, allowing you to create depth, even a degree of translucency to areas where you require it, such as the eyes.
This is especially so, when a final spot coat of gloss is applied to specific areas with a brush, after the final matt top coat has been applied. My sealant preference for this is Mr. Colour Gloss.
Applying a top coat not only seals and protects your beautiful artwork for years to come, it hides any minor imperfections in the surface and allows you to take photos of your finished dolls without a reflective glare, which is more often found on uncoated plastic/vinyl dolls like Blythe here on the right.
Things to watch out for when using sealants are:
Dust, hair and other miscellaneous airborne particles.
Extremes in temperature ~ it's advisable to work in temperatures ranging from 23-27C (73-81F)
Humidity ~ moisture in the air will create fine droplets or spotting on your work, so definitely don't use when it's raining!
Don't breath it in ~ most sealants are toxic, so it's advisable to use a protective mask in a ventilated area or a professional ventilated spray booth.
Avoid eye & skin contact ~ use gloves when holding your doll.
Distance ~ hold your can about 45 cm (approx.18 inches) from your doll and limit spraying to about 3-5 seconds, so it's just enough to apply a thin, even coat to the surface.
My ideal conditions are ~ 25C (77F) with 50-60% humidity, outdoors on a still day.
My go to sealant is Mr Super Clear UV Flat, as it can be used on both my plastic/vinyl and resin dolls, it also has the UV protection which helps prevent yellowing. Yes it's a bit smelly when applying, but that dissipates quickly.
Obtainable in Australia from Japan Toys in Melbourne, at a reasonable price, but please note MSC can only be shipped by road to other states.
Email: firstname.lastname@example.org or Phone: 0490 678 559.
Also available from Brunel Hobbies 20 Station Road, Cheltenham. Scroll to the bottom of their website page, it's just above Paint Pens.
Email: email@example.com or Phone: 1300 278635.