Some types of pigmented stains are more opaque than others, or there are combination stains of dye plus pigment with intermediate qualities. There are pigmented stains that are less transparent and dye stains that are more transparent, the former usually more protective and the latter showing more detail of the wood. The latter, however, can also vary in that aspect. As regards paints and stains for woodwork, the former are more opaque. This contrasts with glass that is semi-transparent, allowing limited ability to see actual form and image, and with transparent, good or perfect ability to see form and image. Translucent means letting light through, as glass that will allow the transmission of light or shadow (which is simply less light). I don't think they are used with wood stain products, though they could be used with lacquer and varnish products. This list below is based on Winsor Newton’s Artist’s oil paint list ( Winton student grade list is here).Glossy and matte are both reflecting qualities in arts like photography, or sometimes can indicate (also) texture, as in paint. Transparent to Opaque – Permanent Rose, Cobalt Blue, Gold, Titanium White The List of Transparent and Opaque Oil Pigments (The glass photo and video illustrates how the rigid surface really shows the mark) A rougher and more porous texture may require more paint and therefore appear less transparent. The Support: If your support is rigid and smooth, the paint film sometimes goes on thinner and appears more transparent and scratchy.Bristle hair bushes for example, tend to brush through the paint film, and softer synthetic brushes and high quality sable will lay the paint down and allow it to cover uniformly, appearing less thin. The type of brush you use: Some less expensive brushes sweep the paint away instead of softly laying the paint down.Syntheitc Brush Marks vs bristle Hair to illustrate transparency influenced by the brush type and the mark. Thicker paint will naturally appear more opaque than thinner applications, or pigment mixed with medium. More expensive brands may also have a higher pigment percentage than less expensive alternatives. Professional vs student grade paints for example, have a slightly different chemical makeup, and this may effect the pigment’s coverage. Some pigments can appear wildly different from one brand to the next. With that said, judging whether a pigment is opaque or transparent is relative and will depend on a few factors unique to your own situation. As such, it relies on their qualifications and standards of what is opaque and what is transparent. This list is based on Winsor Newton’s Artist’s oil paint list ( Winton student grade list is here). If you don’t see a pigment, let me know in the comments and I will add it to the list! How did I come up with this list? Now I’m making it available for you to use. I put together this list many years ago for my basic painting course at The Art League and at Georgetown University. This is where a list of transparent and opaque pigments can come in handy. Whether you use a glazing technique in your paintings, or alla prima, you might want to know if the pigments you use are opaque or not.
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