EFKA 3886

Polyisocyanates modified polysiloxane

Efka Additives

抗阻滞剂 >> 硅树脂/硅/硅氧烷 Antiblocking agent >> Silicones/Silica/Siloxanes 流动/均化剂 >> 硅树脂 Flow / Levelling agent >> Silicone 滑动控制 >> 硅树脂 Slip control >> Silicone 聚亚安酯 >> 2 成分 Polyurethane >> 2 Components 木器 &家具涂层 Wood & Furniture Coatings butylacetate/methoxypropylacetate Reactive slip, levelling and anti-blocking additive Polyisocyanates modified polysiloxane in butylacetate/methoxypropylacetate EFKA-3886 is a polysiloxane modified polyisocyanate designed to crosslink with hydroxyl or carboxyl groups. It is compatible with most polyisocyanates e.g. Desmodur ® and similar products. The addition of EFKA-3886 in polyurethane lacquers or coatings gives the following advantages: improved levelling reduced tendency for orange-peel or cratering improved slip and surface smoothness, these improvements are more permanent, as the additives cross-link to form part of the final film reduced surface tension with little or no foam formation prevention of Bénard cells EFKA-3886 is a cross-linking additive designed for all polyurethane systems, both two-component and moisture curing. It must be added to the polyisocyanate solution in two component systems. EFKA-3886, especially developed for use in wood finishes, helps to improve mar-resistance, orientation of the matting agent and the prevention of flooding in pigmented systems. When applying the polyurethane system by curtain coating on open pore wood surfaces, a defoamer such as EFKA-2022 should be added. Since EFKA-3886 actually takes part in the cross-linking action and forms an integral part of the finished polymer, the slip and scratch resistance properties are more permanent compared with normal additives. Polyisocyanates modified polysiloxane in butylacetate/methoxypropylacetate. Used as a reactive slip, levelling and anti-blocking additive in two-component and moisture curing polyurethane lacquers and coatings. Offers improved levelling, reduced tendency for orange-peel or cratering, improved slip and surface smoothness, reduced surface tension, little or no foam formation and prevention of Bénard cells. Used in wood finishes to improve mar-resistance, orientation of matting agent and prevention of flooding in pigmented systems.