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Saturday, July 27, 2019

Alkyd Resins In Paints ( Art & Chemistry)

Alkyd Artists Paints (Art & Chemistry)

Alkyd resin is synthesized from plant and vegetable oils, like linseed or soya oil, that is modified (oil-modified alkyd resin) for use in artist’s oil paints, mediums and grounds. I convert linseed oil (tung oil, crambe oil, walnut oil, etc with some castor oil additive) , for example, into the mono-glyceride derivative with glycerol, followed by reaction with phthalic anhydride.When it is dry alkyd is tough, flexible and resistant to solvents. The main advantage of alkyd is in the speed at which alkyd resin dries. Alkyd oil paints or oil paints with added alkyd mediums will usually be touch-dry in 24 hours, if painted in a normal thin film. They become tacky within a few hours so brushstrokes can be added without disturbing the earlier paint.

Friday, July 26, 2019

Caverna Artissimo (Cave Art 2019). David (S.) Soriano

Cave Art: Evolution. of the human mind.
Graphic art currently being painted with oil pasterls and oil-based petrolatum paints on bristol  foundation.

The Artist's Fear. David (S.) Soriano

Graphic design currently being painted with oil pastels and oil-based petrolatum.

Developmental Oil/Synthetic Petrolatum Paint

A previous post described the synthetic petrolatum (most components are renewables) and the lighting presents the petrolatum as a more + chroma than in actuality.
Swatches of a commercial oil-based blue paint , 1:1, with the petrolatum on bristol. Undercoat is an oil pastel.

Developmental Paint: Oil-Based Paint /Synthetic Petrolatum

The synthetic petrolatum ( petroleum jelly) contains coconut oil, beeswax, lanolin, silicone grease linseed and castor oil. I will upload the procedure when optimized.

A 1:1 ratio of commercial oil-based paint is mixed with the synthetic petrolatum. It flows off the brush beautifully. The undercoat is a developmental oil pastel on bristol foundation.

Drying time (if it dries!) is being determined.

Wednesday, July 24, 2019

Crop Circles & Punch-Hole Clouds (Art) David S. Soriano

Graphic art currently being painted with oil pastels and  silicone paste/ oil paints.

Mold/ Cylinders/ OIl Pastels/ DIY

eBay sellers (China) sell these molds for about $12.00 (USD postpaid to USA).
Efficient mold for making four (4) oil pastels per run. About 7" length.

I place the cooled oil pastel cylinders in US quarter or nickel paper rolls for subsequent use in painting.

Monday, July 22, 2019

Sunday, July 21, 2019

Impression Of The Canyon Graphic Design David (S) Soriano

Currently being painted with hard pastels (undercoat) and emulsifying wax oils.

Developmental Emulsified Wax Oil On Hard Pastel

Blue hard pastel undercoat on bristol foundation. Top later is emulsified wax/ talcum / clear glue/ oil-based paints.