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DOWSIL™ 501W Additive

수성 및 자외선 경화 가능 코팅, 잉크 및 니스칠용 실리콘 습윤제.

사용:

  • Both waterborne and UV cured paints, inks and coatings

혜택:

어플리케이션에 적합한 제품을 선택할 수 있어 비용 효율적이며 최적의 성능을 제공 광범위한 배합과 광범위한 기판에서 일관된 웨팅성능 수성 및 UV 경화 페인트, 잉크 및 코팅에 모두 사용 가능 목재, 플라스틱 및 금속과 같은 표면의 웨팅성 향상 재도장 가능 100% 활성화; 낮은 VOC, 무용매 및 BTX-free 낮은 첨가량으로도 효과적 (권장량 0.1 ~ 0.4%) 사용하기 쉬움, 저점도 액체

속성

*이 값은 일반적인 속성이며 제품 사양에는 사용되지 않습니다.

물리적 특성

  • 성능 장점 Yes No 레벨링, 습윤
  • 시스템 Yes No Radiation-Cured, Water Borne
  • 제품 Delivery Yes No Polymer
  • 타겟 포뮬레이션 Yes No Water Borne
  • 혜택 Yes No Substrate Wetting

Dow introduces a family of superwetter additives for high-performance water-based and UV cured inks, coatings and overprint varnishes:

  • DOWSIL™ 67 Additive
  • DOWSIL™ 500W Additive
  • DOWSIL™ 501W Additive
  • DOWSIL™ 502W Additive

Do you have difficulty achieving effective substrate wetting with your waterborne or UV cured formulations, particularly on challenging substrates like wood, plastic and metal? Have you tried other silicone additives, only to see undesirable effects on slip properties?

With its range of functionalities and hydrophilicities, the new family of superwetter additives from Dow can be used in waterborne, solventborne and solventless radiation curable coatings. These additives can help you obtain the wetting performance you want for your formulation and substrate – and do so with little or no impact on slip properties.

Making an informed choice of superwetter

Dow understands that every formulation is different. By providing more information about structure, end capping and hydrophilicity/HLB, Dow seeks to improve the quality of wetting additive choices. All four products in this DOWSIL™ Superwetter family are 100% silicone polyether copolymers and are characterized by being usable in both waterborne and UV coatings formulations, offering recoatability and a high level of consistency across different types of binders.

In addition:

Products Silicone Polyether Copolymer (%) Viscosity HLB-EO End Cap Suface Tension (aqueous 0.1 % solution)
DOWSIL™ 67 Additive 100 31-51 11.5 OH 21.0
DOWSIL™ 500W Additive  100 25.5-29.5 10.7 OAc 22.0
DOWSIL™ 501W Additive 100 10-30 10.6 OMe 20.5
DOWSIL™ 502W Additive 100 49-75 13.2 OH 22.4

Key features of DOWSIL™ 501W Additive

Besides excellent wetting performance at low addition levels, DOWSIL™ 501W Additive can be used where specific Regulatory Compliance is needed.

Performance with regulatory compliance

One hundred percent silicone polyether copolymers and solventfree technology mean no contribution to VOC when using these additives. All substances intentionally formulated in DOWSIL™ 501W Additive are listed in the Swiss ordinance RS 817.023.21.

Products Swiss Ordinance RS 817.023.21
Annex 6
DOWSIL™ 501W Additive All substances intentionally formulated in DOWSIL™ 501W Additive are listed on Annex 6, Part B, and on Annex 5, Part B, of the Swiss Ordinance RS 817.023.21

High performance at low use levels

DOWSIL™ 67 Additive, DOWSIL™ 500W Additive, DOWSIL™ 501W Additive and DOWSIL™ 502W Additive provide excellent wetting performance at low addition levels with little or no influence on slip. In a waterborne PUD-based flooring coating, for example, all four additives provide excellent wetting performance versus competitive organic and silicone wetting additives over different substrates. The toolbox approach also enables formulators to choose the right product for a specific application, while at the same time reducing the number of products they must maintain in their raw material portfolios. The superior performance can be measured in multiple waterborne coatings by the surface appearance and coefficient of friction.

Figure 1: Surface appearance and slip properties of a waterborne, PUD-based wood coating with the addition of DOWSIL™ 67 Additive, DOWSIL™ 500W Additive, DOWSIL™ 501W Additive and DOWSIL™ 502W Additive. Additives were added at 0.2 weight percent in the total formulation.

Graph: Surface appearance and slip properties of a waterborne, PUD-based wood coating with additives added at 0.2 weight percent in the total formulation

Figure 2: Surface appearance and slip properties of a waterborne, acrylic-based wood coating with the addition of DOWSIL™ 67 Additive, DOWSIL™ 500W Additive, DOWSIL™ 501W Additive and DOWSIL™ 502W Additive. Additives were added at 0.2 weight percent in the total formulation.

Graph: Surface appearance and slip properties of a waterborne, acrylic-based wood coating with the addition of additives added at 0.2 weight percent in the total formulation

Figure 3: Application over oily substrates is improved with the use of any of the products in the DOWSIL™ Superwetter family tested at 0.2 wt% addition levels in waterborne flexographic gravure ink.

Graph: Application over oily substrates is improved with the use of superwetters products tested at 0.2 wt% addition levels in waterborne flexographic gravure ink

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DOWSIL™ 501W Additive
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