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Mats Jonasson started at Målerås in 1959 on leaving school at the age of fourteen. The glass works needed an engraver and, since Mats was known to be good at drawing, his father, who was employed there, was asked if his son could start. After some ten years at Målerås Mats moved to Kosta, returning to Målerås in 1975. He has since developed the range of animals motifs that has become famous and has spread all round the world.

Having done a drawing I make a plaster model. This is an exact replica of the finished piece. At this stage I decide on the background - what is to surround the piece. The next step is to engrave the body on the plaster model. Then I varnish the model and make a positive cast of it also in plaster. This cast, which is the right way round, is the model for the final iron mould. We now have a raw mould. The raw mould is also worked on. I use diamond drills, revolving file and ultrasonic tools to clarify the details of the motif and to polish the parts requiring a glossy finish. When am satisfied with the mould it is passed to the glass workshop where the molten crystal is cast in it. We start by heating the iron mould so that the difference in temperature between it and the molten crystal is not too severe.

We use a crystal of a special type which the Swedish Glass Resear Institute has helped us to develop. This is the most costly crystal but it is especially well suited to casting and pressing. A large piece of this crystal has greater refraction and is smoother and more brilliant. It treats the light in a special way. After casting, the glass is annealed in a lehr for 15-20 hours. If it is cooled to quickly it will crack. After annealing there is a first quality inspection. Glass with imperfections is thrown out.

The next step is sandblasting. We work with different grades of cutting sand at various velocities. After sandblasting the motifs are polished. Any unevenness on the background and foot of the piece is then ground smooth. First the piece is ground on a coarse diamond wheel and then on a finer wheel before being polished in two stages. The second "putty" polishing uses tin oxide which gives a highly polished surface.

The final stage consists of engraving in order to achieve the minutest details of coat, plumage and eye that are so vital to the impression made by the finished piece. The craft process means that each relief is different. Many hands and eyes have contributed to the finished object". 
The Glassworks in Målerås was founded in 1890, then producing mouth-blown window glass. The Swedish glass industry was once concentrated to this area due to the need of fuel to fire furnaces.

On the 29th of January 1981 the newly appointed managing director of Kosta, Björn Swärdsson, signed a historic contract. It made Målerås into a independent glassworks, owned by the employees and villagers. Mats Jonasson bought twenty-five shares each in the newly-constructed company. 1984 saw the start of a wave of investments at MATS JONASSON MÅLERÅS and was one of the most comprehensive in the more than a hundred- year-old history of the glassworks. It´s still going on today!

MATS JONASSON MÅLERÅS is a Swedish company with a long tradition in creating and designing handcrafted high quality crystal products. We produce wildlife- and other sculptures, bowls, vases, platters and engraved studio pieces in crystal. The company employs some 90 people, and has an export share of 60%.

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