Event Date March 31, 2020 – April 2, 2020
Location Indianapolis Convention Center
Visit us at Booth 1431
Register for a Free Pass

Paints and coatings play an integral part in the preservation and protection of the items, large and small, to which they are applied. Almost everything we interact with has a coating applied to it. Coatings extend performance and protect the object from detrimental environmental factors.

 

Conference Presentations:

 
Kaliappa Ragunathan Poster
Tuesday, March 31, 2020, 5:00 PM - 6:30 PM

Achieving excellent multi-substrate adhesion for Architectural Coatings

Substantial differences across substrate surface properties make it very difficult for architectural coatings to achieve superior multi-substrate adhesion. This challenge is further complicated by the need to balance adhesion with other important coating properties. BASF’s latest developments on emulsion polymers achieve this challenging goal, delivering a solution that improves the resilience of low-VOC coatings.

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BASF investigated the role that different polymer design factors have on adhesion to identify a solution that will successfully adhere to chalked paint, fresh wood, aluminum, galvanized steel, cold rolled steel, and alkyd paint. This paper explores the impact that hydrophobicity/hydrophilicity balance, molecular weight, particle morphology, and glass transition temperature of aqueous polymer particle dispersion has on multi-substrate adhesion. It also covers specific examples of flat and semi-gloss formulated coatings achieving superior multi-substrate adhesion, while simultaneously delivering overall excellent performance in other key attributes such as dirt pick-up resistance, surfactant leaching, and tannin blocking among others.


 
Nicholas Foley Measuring and Testing I
Wednesday, April 1, 2020, 8:30 AM - 9:00 AM

Coating Mechanics to Defend Against Environmental Exposure

Exterior surfaces experience degradative environmental conditions such as intense UV exposure, rain and temperature swings leading to deterioration. Coatings are low cost solutions offering decades of protection, preventing significant repair costs for buildings. The coating must withstand UV, mitigate water damage and express the flexibility required to maintain adhesion to dimensionally unstable substrates (i.e., wood) as they undergo thermal expansion and contraction through the days and seasons.

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BASF has investigated paint film mechanics through accelerated thermal cycling grain crack and tensile testing with intent to correlate the film properties to exterior exposure data. In this paper, we demonstrate that adhesion after accelerated weathering combined with tensile elongation testing can be used to model outdoor weathering.


 
Bill Rosano Measuring and Testing I
Wednesday, April 1, 2020, 11:00 AM - 11:30 AM

Morphological Changes in exterior surface coatings after exposure to cyclic water submersion and UV exposure

Exterior surface coatings used in many applications can be exposed for long periods of time to cyclic exposure consisting of water submersion or local water surface puddling followed by water evaporation and solar exposure. Under such conditions several macroscopic defects can appear including blistering, adhesion loss, soil pick-up, cracking, erosion, etc.

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However quite often surface microscopic film defects can start long before these macroscopic defects are visibly evident. In this paper we show surface microscopic morphology changes to coatings cycled between water (submersion) and UV exposure where both polymer and formulation compositional factors were explored. Scanning electron microscopy showed microscopic defects such as polymer-filler separation, filler removal and degradation and crack formation appeared after short-term (one month) cyclic testing. The micrographs also revealed the observed film defects were confined to the exposed surface and about a few filler particle diameters deep.


 
Tony Neely Protective Coatings
Wednesday, April 1, 2020, 5:30 PM - 6:00 PM

Acrylic dispersion for improved metal protection

Waterborne technologies are gaining ground, although solventborne or 100% solids technologies remain dominant, for corrosion protection due to increased regulations around VOC emissions. Our latest development emphasizes our commitment and expertise in this field.

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This study demonstrates a high-performance, APEO- and zinc-free binder with improved corrosion protection compared to other 1-component waterborne binders of equivalent dry film thickness. This new resin helps to save formulation cost and complexity by decreasing or eliminating the use of active inhibitors. The versatility of this technology will be showcased by results in a high-gloss direct-to-metal (DTM) coating and primer. By balancing the hydrophobicity and chemical functionality, BASF has developed a resin with low water uptake, good early water and humidity resistance, and excellent corrosion resistance while still allowing for ease of formulation and pigment dispersion. This functionality also allows for superior adhesion to multiple substrates, including plastics.


 
Kyle Flack Water-based coatings
Wednesday, April 1, 2020, 6:00 PM - 6:30 PM

Water-based intumescent coatings with dramatically reduced application times

Intumescent coatings provide passive fire protection, most notably to steel structures. The application of water-based intumescent coatings on construction steel can take several days due to the number of coats and total dry film build needed to provide adequate fire protection.

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Industry standard water-based intumescent coatings can also suffer from poor water resistance. This limits their application to indoor spaces or in many instances require a water-resistant topcoat; further increasing the time required to apply. We have developed unique technology for intumescent coatings that can dramatically decrease application times and in many cases preclude the need for a topcoat. This unique technology consists of a dispersion and our proprietary Instant Set Technology which when used together allow for full film build in one application.


 
Kyle Flack Direct-to-metal
Thursday, April 2, 2020, 8:00 AM - 8:30 AM

Acrylic polyol with enhanced performance for 2KPUR direct to metal coatings

Mitigating corrosion continues to be a challenge in protective coatings markets. End users are demanding more corrosion protection with fewer coats. An example would be direct-to-metal topcoats that forgo the use of a primer.

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2K urethane coatings are commonly used in the protective coating markets either as primers, topcoats or direct-to-metal topcoats. These urethane coatings inherently suffer from poor corrosion protection and adhesion when applied directly to metal substrates such as cold-rolled steel, aluminum, and galvanized steel. We have developed a unique acrylic polyol suitable for low VOC solvent based direct-to-metal 2K urethane coatings. The new resin provides low VOC capability, long pot life, good dry and wet adhesion to various metal substrates, good corrosion resistance as measured in salt spray and good UV durability which is a key requirement fo


 
Ralf Knischka Direct-to-metal
Thursday, April 2, 2020, 11:00 AM - 11:30 AM

Novel silicone-free star surfactants for WB DTM applications with broad design space for optimized foam/wetting behavior

Optimizing the performance of waterborne coatings to approach that of solvent-borne is of paramount importance. This conversion in formulation is driven in many market segments with emphasis in direct-to-metal and industrial top coats in both 1K and 2K systems.

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The level of protection a waterborne coating can provide depends - next to other factors as e.g. coating thickness - strongly on the wetting characteristics of the applied coating to the substrate. We report on a new class of surfactants which are based on a novel oligomeric silicone-free chemistry with star-type branching. This concept demonstrates a broad versatility in designing excellent wetting dynamics versus low foam stabilization. In some cases, even defoaming properties could be realized. Finished film resistance properties, application and production speeds of a coating can be positively affected. This study compares the performance of new star surfactants to relevant benchmarks for wetting behavior, corrosion resistance and foam stabilization.


Spotlight Article

To survive cold winter temperatures, coatings need strong grain crack resistance and adhesion

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