Specialty Chemicals

MACRYNAL SM 513/60LG is an excellent mechanical properties and chemical resistance, high gloss. Fast drying two pack systems, in paricular for primer surfacers for car repairs and for general industrial applications. In combination with aliphatic polyisocyanates Macrynal SM 513/60LG is recommended for at ambient temperature drying or forced drying two pack systems. The principal application field is automotive refinishing and high-grade industrial paints. Due to its rapid initial drying Macrynal SM 513 is especially useful for the formulation of primer surfacers. Automotive refinishing clearcoats based on Macrynal SM 513 must be stabilized with light stabilizers.

MACRYNAL SM 516/70BAC is an air-drying and forced drying two pack medium high solids systems with high gloss, excellent mechanical properties, excellent chemical resistance and good outdoor stability for automotive refinishes. In combination with aliphatic polyisocyanates Macrynal SM 516 is suggested for air-drying and forced drying two pack high-solids systems. The principal application area is high quality automotive refinishes.

MACRYNAL SM 510N/60LG LC is a high gloss, very good mechanical properties, excellent outdoor stability and chemical resistance. In combination with polyisocyanates for at room temperature drying or forced drying two-pack systems for the industrial lacquer sector. In combination with aliphaticpolyisocyanates Macrynal SM 510 is recommended for at room temperature drying or forced drying two-pack systems. The principal application is the industrial lacquer sector. Coatings based on Macrynal SM 510 provide very good solvent and chemical resistance as well as excellent outdoor stability.

ROSKYDAL 300/1 is a formulation of clear and pigmented UV-curing top coats with very good flow properties for application by spraying and curtain coating. After the addition of photo-initiators, ROSKYDAL 300/1 can be cured under UV lamps. When using high-pressure mercury vapour lamps with a capacity of 80 - 120 W/cm lamp length, standard commercial initiators can be used. However, their suitability for the intended application should be tested, especially with respect to storage stability, reactivity and yellowing. The use of 2.5 % Irgacure® 17001 or Irgacure 6511 is recommended for clear coats (max. application rate: 250 g/cm2). In the case of top coats, Baysilone® Paint Additive PL2 should be used to promote the flow properties. The addition of 2 % of a 1 % solution in toluene is recommended. Pigmented coatings should be formulated using 2 % Lucirin® TPO1 or other suitable photoinitiators. All the quantities given are calculated on the resin supply form. Clear coats may contain soluble dyestuffs and highly disperse silicas. Primers are formulated using highly disperse silicas and quartz powder. Soluble dyestuffsmay also be added. The addition of 5 - 10 % Desmodur® L or Desmodur N improves the adhesion. However, such combinations have a limited pot life (approx. 24 hours with a 5 % addition of Desmodur L).