43E-9010/2 is a new 1k blocking primer for exterior especially formulated to work as universal blocking primer, able to block both tannin exudation, pine knots bleeding and also various extractives coming from exotic woods. Its insulating properties has been successfully tested on tannin rich woods like Oak and Chestnut, Pine with knots and resin, Russian Larch, exotic wood like Movingui, Agba, Idigbo, Merbau, and Accoya. Other than the high barrier properties for a 1k product, 43E-9010/2 can be distinguished from the other primers of the range for good wet adhesion, low water absorption, good wettability, good weathering resistance, low viscosity. For joinery, 43E-9010/2 is applicable by manual or automatic spray – tested also on CEFLA iGiotto. 43E-9010/2 can be used as a first coat on bare wood or as an intermediate coat on wood previously treated with protective stain. It can be overcoated with any topcoat in the exterior range.

wooden houses on austrian mountains at winter with a lot of snow

It can be tinted with WB pastes 445-XX60. Given its basic pH (ca. 9) it allows to work on the usual equipment without need of special cleaning or dedicated equipment. The typical coating system consists of the fungicide stain 458-0002/2 (or protective white stain 454-9005/2), 43E-9010/2 and, after a light sanding, the topcoat 41E-9099/30 or 41E-9009/30. 43E-9010/2 was subjected, with excellent results, to internal tests on water absorption EN927-5, wet adhesion (pull-off) CEN/TC 139, natural weathering EN927-3, artificial weathering EN927-6 (Quv-A) and nf297 (Gardner wheel). 


Since 1866, Sherwin-Williams has provided manufacturers and finishers with the coatings they need to make their products look better and last longer, while helping their operations meet productivity and sustainability goals. Commitment to innovation, technological strength, and research and development, combined with our ability to listen to our customers’ needs, makes Sherwin-Williams the benchmark of industrial finishes for wood, glass, metal and plastics. 

In 2010 The Sherwin-Williams Company purchased recognized international brands Sayerlack and Becker Acroma which held OECE brand, creating a global leader in wood coatings.Today The Sherwin-Williams Company, which employs more than 45000 people, is the largest paint company in United States and the third largest worldwide. 

In Italy, Sherwin-Williams develops, manufactures and distributes products to more than 40000 customers in 80 countries under the Sayerlack, Linea Blu, OECE and Sherwin-Williams brands. 

OECE: leadership in special effects and in paints for glass. OECE addresses the creative challenges of artisans, architects, designers and entrepreneurs of glass and wood by meeting every aesthetic need, with innovative, safe and high quality solutions that bring strength and beauty to the surface. OECE produces a wide range of innovative solutions for glass with high aesthetic content – lacquered pigmented and semi transparent, dedicated to the sector of furniture and design; wood – whose high quality satisfy any application need, for indoors and outdoors; and plastic. Special effects for glass and wood offer new aesthetic solutions, including metalized effects, glitter, sandblasted, satin, droplet, iridescent, fluorescent, cracked, marble, granite, and mirror. To learn more about OECE, please visit www.oece.it or follow @OeceWorld on Twitter.