FIELD: polymer materials. SUBSTANCE: invention provides microporous or nonporous light-resistant elastomeric, flexible or semiflexible, molded polyurethane products having density at least 900 kg/cu.m and modulus of elasticity according to ASTM D790 between 5 and 300 MPa. Products are fabricated from reaction mixture employing reactive jet molding, wherein (i) isocyanate composition containing mixture of isophoronediisocyanate trimer/monomer with NCO content between 24.5-34 wt. % interacts with (ii) isocyanate-reactive components containing: polyether-polyol with terminal OH groups having nominal functionality 2-4 and average equivalent weight 800-4000; at least one chain-elongation reagent having only aliphatic or alicyclic OH groups as functions; and at least one amine initiator, in presence of (iii) at least one catalyst component selected from organolead(II), organobismuth(III) and organotin(IV) catalysts, (iv) at least one pigment, and (v) at least one antioxidant absorbing UV rays. EFFECT: accelerated demolding and improved mechanical properties of products. 47 cl, 3 tbl, 17 ex
