the application relates to compositions of powder in the manufacture of devices using the spatial selective sintering or / and melting furnace using electromagnetic energy sources, especially laser, containing not less than 40 wt%.base substance and optionally additional components, particularly selected from the group consisting of: rozjau015bniacza, visible pigment, metal powder or mineral, carbon fibre or glass, glass beads or uv absorber, antioxidants, additives to improve the u015bciwou015bci non combustible additives to improve fluidity of plastic is characterized by that,it contains an absorbent substance, the value of the maximum absorbance of the absorption for the waves in the 700 - 6000 nm is not less than 0.05, and the average value of absorbance in the range 400 - 700 nm is at least twice less than the maximum absorbance waves in the 700 - 6000 nmand the decomposition temperature or melting substance absorption is greater than the melting temperature of powder base.
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