Xylar 2 Coated Fasteners

Stud Bolts, Nuts, Screws, Threaded Rod & Washers

Xylar 2 is the cornerstone of a generation of hard, cermet finishes. Almost twice as hard as the best organics, it offers a tough, sacrificial barrier to corrosion and wear. Xylar 2 is a porous ceramic coating that is extremely hard and, with respect to structural metals, is chemically sacrificial. Applied to ferrous, aluminum, or other metals, it is “sacrificed” to a corrosive medium before the substrate is attacked. The high temperature stability of Xylar 2 (1,200°F/650°C) makes it ideal for engine applications where the electrical couple between dissimilar metals could result in corrosion. Xylar 2 is used in abrasive applications such as furnace chutes, air ducts, grain handling equipment, and numerous vehicle-underbody components where abrasive wear or stone pecking is common.
The primary end use for this coating is: CORROSION RESISTANT PRIMER FOR MARINE ENVIRONMENTS

Xylar 2 Product Specifications

SOLIDS 58.00 % to 62.00 % by weight
DENSITY 12.9 to 13.30 lb/gal, 1.55 to 1.60 Kg/liter
VISCOSITY, as shipped 10 to 20 SECONDS ZAHN #2 (S90) AT 77°F (25°C)

Xylar 2 Typical Properties

VOLUME SOLIDS, theoretical 37.50%
COVERAGE, theoretical 601.50 sq.ft./gal. at 1 mil, 9.38 sq.m./Kg. at 25 microns
FLASH POINT NONE
VOLATILE ORGANIC CMPDS 0.08 lb./gal, 9.60 grams/liter

Xylar 2 Preparation of Parts for Coating

Parts must be free of dirt, oil and other soils to achieve good adhesion and defect-free coatings. The following are the recommended substrates and substrate preparations used with this coating

SUBSTRATES COLD ROLLED STEEL, ALUMINUM
SUBSTRATE PREP DEGREASE AND GRIT BLAST - USE 60-80 MESH ALUMINUM OXIDE MEDIA FOR GRIT BLAST.
PRIMERS / BASECOATS N/A

Xylar 2 Preparation of Coating Material

Mix containers thoroughly by shaking or stirring until any solid material on the bottom has been eliminated. Best results are obtained when the coating temperature is 65-90°F (18-32°C). Adjust viscosity, if necessary, using the recommended thinner and an accurate Zahn Viscosity Cup. Other viscosity cups may also be used. Add thinner in increments of 2% until proper viscosity is achieved. Low viscosity produces runs and sags and low film thickness. High viscosity produces poor sprayability and uneven appearance. Any dried coating or dirt may be removed by passing the coating through a 100-200 micron filter.

APPLICATION VISCOSITY AS SUPPLIED - REDUCTION NOT RECOMMENDED
VISCOSITY ADJUSTMENT D.I. WATER, OR WHITFORD SOLVENT 101 IF NECESSARY
OTHER INFORMATION NOTE: WATER WASTE WILL CONTAIN CHROMIUM - MUST DISPOSE OF PROPERLY

Xylar 2 Application information

This product is designed primarily for spray application. Consult with a Whitford representative if other types of application are being considered. Use an air spray gun with a siphon cup or pressure pot. Select a fluid nozzle and air cap that meet application needs. The Whitford Laboratory uses a Binks Model 2001 gun with a #66S fluid nozzle and a #66SD air cap. The air supply line must be equipped with traps to remove water and oil. Drain and service traps frequently. Apply the dry film thickness as specified. The proper amount of coating should be achieved with two or three passes of the spray gun across the work piece. Apply the coating to a uniform, full wet appearance.

DRY FILM THICKNESS O.8 - 1.2 MILS (20 - 30 MICRONS)
CLEAN UP SOLVENT WATER

Xylar 2 Curing the Coating

In order to completely cure the coating, the SUBSTRATE TEMPERATURE must remain at the specified temperature for the entire bake schedule

FLASH OR AIR DRY AMBIENT TO 150°F (66°C) UNTIL PART TURNS COMPLETELY GREY IN COLOR.
BAKE SCHEDULE 5 - 10 MINUTES AT 750 - 650°F, 20 MINUTE AT 550 - 600°F

Xylar 2 Typical Cured Film Properties

Evaluate the coating according to the following specifications

PENCIL HARDNESS 8H GLOSS: MATTE AS SPRAYED
CURE TEST WHITFORD TM-115C / APPLY 1 DROP OF HOT TAP WATER TO PART LET STAND 1 MINUTE, BLOT WITH PAPER TOWEL = NO DISCOLORATION ON TOWEL.
ADHESION EXCELLENT KNIFE SCRATCH ADHESION
OTHER MATERIAL CAN BE BURNISHED WITH GLASS BEAD AT 15-25 PSI FOR BETTER CORROSION RESISTANCE AND APPEARANCE.

Xylar 2 Handling & Storage

Keep containers tightly closed when not in use. Store between 40 to 95°F (4 to 35°C). Avoid breathing fumes during application or curing. Wash hands thoroughly before smoking or eating. Wear appropriate protective equipment while handling.

SHELF LIFE 6 MONTHS (MIX OR ROLL 30-60 MINUTES MONTHLY TO MAINTAIN QUALITY)