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This specification covers an unpigmented silicone-resin-base coating material.

In a car body painting system, the contribution ratio of phosphate treatment as the paint base coating reaches about 20% in corrosion resistance according to the analysis of variance of experimental results. ...With the zinc phosphate type conversion treatment, coating mainly consisting of hopeite and phosphophyllite is formed on the surface of steel sheet. ...With an electrodeposition paint base, corrosion resistance becomes higher as the content of phosphophyllite in the coating becomes higher. The reason for this may be sought in the dissolution of phosphate coating when ED paint is applied (solubility) and when it is decomposed during subsequent baking (heat resistance).

These additional tests can provide informational data for characterizing the coatings and may be useful to operators when evaluating the coatings....This SAE Aerospace Information Report (AIR) provides descriptions of test methods for determining if an aircraft surface coating of any thickness has adverse effects on aircraft deicing/anti-icing fluids with respect to fluid holdover time performance and aerodynamic performance. ...Although not the primary mandate of the G-12 Aircraft Ground Deicing Committee, this document also provides descriptions of suggested test methods for evaluating aircraft surface coatings with respect to durability, hardness, weathering, aerodynamic drag, ice adhesion, ice accumulation, contact angle, and thermal conductivity.

CLADDING of steel parts or assemblies with aluminum, through the use of a recently developed process which has been in commercial operation for two years, is described in this paper. Successful plant and field experience indicates that it can be applied at room and elevated temperatures in various types of atmospheres. This new process was originally designed to offer corrosion resistance caused by the collection of leaded fuel gas condensates in exhaust systems, and for other parts requiring high-temperature oxidation resistance up to 1600 F. However, it has since been used in a wide variety of applications.

In this application, it represents an alternative to a coating system wherein a zinc-rich paint is applied over a terne coating. This paper discusses certain aspects of the production, product testing and performance of Galfan coated tubing produced by Arc Tube Inc., Sault Ste. ...Galfan is an ILZRO-developed zinc-base alloy for coating ferrous products. It is essentially a zinc/aluminum alloy of eutectic composition (5.0% Al), to which has been added a small amount (nominally 0.05%) of cerium and of lanthanum. ...It is essentially a zinc/aluminum alloy of eutectic composition (5.0% Al), to which has been added a small amount (nominally 0.05%) of cerium and of lanthanum. The coating has excellent ductility and corrosion resistance. These qualities make it an ideal candidate for automotive tubing applications; it is currently being used in automotive transmission-oil cooler lines.

As a result of our extensive research into conversion coatings we have succeeded in developing a completely new conversion coating system. The new conversion coating system uses completely different components to zinc phosphating and by comparison to zinc phosphating, the concentration of heavy metal ions is 70% lower and furthermore, no sludge is generated. ...The new conversion coating film is highly resistant to acids and alkalis. As a result the new conversion coating system achieves a very high corrosion resistance. ...The new conversion coating system uses completely different components to zinc phosphating and by comparison to zinc phosphating, the concentration of heavy metal ions is 70% lower and furthermore, no sludge is generated.

Direct Coating is a new processing technique which applies a single-layer polyurethane coating directly to a plastic part within a 2-shot molding cycle. ...A 2-shot molding prototype tool was made, and part molding trials were conducted using metallic pigmented polyurethane coating. Initial molding trials showed promising results of the coating quality and pigment dispersion. ...The advantages of Direct Coating over traditional paint are improved surface quality, scratch resistance, and cost-effective processing.

The design and process of some reflective surfaces are such that certain areas of the target do not receive sufficient aluminum coating thickness. Reduced coating thickness results in decreased optical efficiency, and has led to increased thermal demands on the thermoplastic substrate. ...This paper seeks to quantify how reflectivity and substrate temperature are dependent on the thickness of the PVD metal coating, and thermal simulation tools are used to predict lamp temperatures for varying coating thickness of the reflective surface.

Environmental influence on the suit temperature and heat flux can then he minimized with a high reflectance coating. Candidate coatings have been identified and ranked on the basis of thermophysical properties; wear, corrosion and atomic oxygen degradation resistance; and coating process and cost. ...Candidate coatings have been identified and ranked on the basis of thermophysical properties; wear, corrosion and atomic oxygen degradation resistance; and coating process and cost. Laboratory determination of properties, thermal cycling and wear resistance tests are underway to identify the optimum coating. ...Laboratory determination of properties, thermal cycling and wear resistance tests are underway to identify the optimum coating. A computer model is being developed to evaluate various environmental configurations. Preliminary results are presented here.

Over the past 60 years, chemical companies have been supplying automotive manufacturers state-of-the-art zinc phosphate conversion coatings which, when applied properly to a metal surface promote excellent paint adhesion and corrosion resistance. ...Phosphate conversion coatings have undergone many transformations over the years. Now some of their essential components and byproducts are being more tightly regulated under new environmental guidelines. ...The metal pretreatment industry is now challenged with the task to replace the traditional zinc phosphate coating with the next generation product. This paper will examine the advantages of a new generation conversion coating based on zirconium oxide.

In the present social environment, automobile demands further reduction of fuel consumption and light weight. Now that the reduction of vehicle weight is being pursued, even a slight looseness in each element of an automobile may become a source of vibration and noise due to the lowered rigidity of such an automobile. The quietness of vehicles is urged, spline backlash in the spline mechanism exhibits a problem in some cases. A propeller shaft, a part of the automobile driving system, also has a sliding spline mechanism as shown in Fig. 1. Such a propeller shaft is required to have functions of transmitting high torque driving forces, and absorbing the variation of the vehicle driveline overall length at the same time. Vibration and noise are apt to occur if when torque is applied, there is a significant balance fluctuation or great sliding resistance due to spline backlash.

Future catalyst systems need to be highly efficient in a limited packaging space. This normally leads to a design where the flow distribution, in front of the catalyst, is not perfectly uniform. Measurements on the flow test bench show that the implementation of perforated foils for the corrugated and flat foils has the capability to distribute the flow within the channels in the radial direction so that the maximum of the given catalyst surface is of use, even under very poor uniformity indices. Therefore a remarkable reduction in back pressure is measured. Emission results demonstrate cold start improvement due to reduced heat capacity. The use of LS - structured ( Longitudinal structured ) corrugated foils creates a high turbulence level within the single channels. The substrate lights-up earlier and the maximum conversion efficiency is reached more quickly.

The size and shape of these lobes were found to be relatively invariant to coating weight over the range of coating weights studied. However, the degree of scatter in the data increased with coating weight. ...However, the degree of scatter in the data increased with coating weight. Surprisingly, decrease in coating weight did not result in longer electrode life. ...The influence of coating weight on the weldability lobe and electrode life performance of a zinc-coated steel was studied.

The coating of body components in the automobile industry is carried out preferentially on the main paint line, thereby avoiding additional coating costs and color shade differences. ...The coating of body components in the automobile industry is carried out preferentially on the main paint line, thereby avoiding additional coating costs and color shade differences. Unfortunately, very few plastics exist which do not deform by temperatures of 140 - 170 °C. ...The presentation indicates possibilities for the on-line coating of plastics components by means of modifications to the present painting methods and materials.

X-ray diffraction examination revealed an attribution of the coating structure to powdering resistance. Higher galvannealing temperature(500∼550°C) deteriorates powdering resistance, but slower cooling from higher temperature improves it. ...Г1-phase(Fe5Zn21) is formed along the interface between coating and steel when samples are galvannealed at lower temperature(≦500°C) or cooled at slower cooling rate from higher galvannealing temperature. ...The results suggest that the increase of Г1 ratio [Г1/(Г+Г1)] in the coating is inclined to improve powdering resistance.

It has been found that the coating thickness is uniform and it increases as the coating time increases. There is no significant change in hardness and wear with increase in coating time. ...Electroless Nickel (EN) coatings are used in automotive application due to its high hardness, uniform thickness and wear resistance. ...The effect of coating time on thickness, structure, hardness and wear of EN coated steel are investigated. It has been found that the coating thickness is uniform and it increases as the coating time increases.

Rotary Bell Atomizers are well established in the automotive industry for top coating applications. This type of atomizer allows to create a uniform coating and is characterized by high productivity. ...This paper describes a multidisciplinary framework that allows to simulate the industrial processes of coating paint quickly with high accuracy on complex car geometries. Film deposition of paint droplets on the target, the movement of paint particles between the target and the atomizer and the effect of a swirling air jet on the droplet trajectory are all considered. ...To model the process, a coupled multi-physics solver is developed, which combines lattice Boltzmann method for air flow, Lagrangian particle method for paint droplets, and the thin film solver for coating thickness calculation. The paper presents the physical and mathematical model of the process, brief introduction on the numerical methodology, validation results based on experimental data, and the results of modelling practical coating scenarios.

This paper relates to the development of an improved gasket product by the use of a new liquid rubber coating material. The new liquid rubber, a terpolymer of acrylonitrile, diene and Substituted acrylamide monomers, has been specially synthesized for this purpose. ...The new liquid rubber, a terpolymer of acrylonitrile, diene and Substituted acrylamide monomers, has been specially synthesized for this purpose. The coating process involves a 100% solid system. Coated products made out of this liquid rubber on SAE 1008 steel, have been tested for gasket applications.

The effects of the applied voltage and paint droplet charge values on the spraying pattern and coating Transfer Efficiency (TE) in the ERBS, including a high-voltage ring for spray cloud control, have been studied numerically in a wide range of droplet size distribution. ...Our findings indicate that the control-ring around the rotary bell rim improves the coating procedure TE and produces a more harmonized and narrower spray plume. Our in-depth investigation clearly shows the importance of the droplet charge values, voltage quantity, and considered droplet size range on the film thickness and its corresponding quality that is obtained from the workpiece.