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FX-442 Aliphatic Polyurethane

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FX-442

FX-442 was used in the following case studies:

Restored Howard Street Bridge Over I-83

DESCRIPTION:

FX-442 Aliphatic Polyurethane is a two (2) component, high-solids, polyurethane coating. FX-442 provides excellent u.v. resistance. FX-442 offers outstanding abrasion resistance, excellent chemical resistance and color retention in severe conditions.

ADVANTAGES:

Excellent ultraviolet resistance.
Excellent coating for concrete, wood and primed steel.
Can be applied by brush, roller or spray.
Convenient 2:1 ratio, by volume, with a pot life of six (6) hours plus.

PHYSICAL PROPERTIES:

Pot Life	6 hours @ 72°F
Solids by volume	55% minimum
Solids by weight	70% minimum
Salt Spray (2 hours) ASTM D1654 - 1000 hours	Passes
Abrasion Resistance	Excellent
Flexibility 1/8" mandrel bond	No adhesion loss
Tensile Elongation	150%

SURFACE PREPARATION:

Steel Surfaces: Steel surfaces should be dry grit or sandblasted to a commercial gray metal finish as specified by the Steel Structures Painting Council SP-6. All work blasted shall be coated the same day with FX-408 Zinc Rich Primer. For immersion service, blast to near white blast SSPC SP-10.

Concrete Surfaces: Concrete surfaces shall be cleaned to remove dirt, curing compounds, existing coatings or laitance to provide a clean, sound bonding surface. Cleaning may be accomplished with FX-Masonry Cleaner and waterblasting, acid etching and waterblasting, sandblasting, or other methods that would achieve a similar result.

MIXING:

Stir Component "A" thoroughly before mixing. Combine 2 parts by volume of "A" with 1 part by volume of "B" (mixing ratio 2:1). Mix for, not less than 3 minutes with a FX Mixing Paddle to prevent entrapment of air.

APPLICATION:

FX-442 can be applied by brush, roller or spray. When spraying, organic vapor respirators must be worn to prevent inhalation of Component "B" (polyisocyanate). Proper ventilation is a must when used in a confined area.

COVERAGE:

FX-442 will cover approximately 300 sq. ft./gal./coat depending on surface texture. For best results use two (2) coats.

SHELF LIFE:

One year

PACKAGING:

FX-442 is packaged in three (3) gallon and fifteen (15) gallon units.

CAUTION:

Component "A"
Component "B": Contains polyisocyanates. Avoid inhalation of vapors. FX-442 can be irritating to eyes, skin and upper respiratory tract with possible sensitizations. Wear protective clothing, rubber gloves and safety glasses.

When spraying, respiratory protection and good ventilation are required.

In case of contact, wash thoroughly with soap and water. Flush eyes with copious amounts of water.

FOR INDUSTRIAL USE ONLY. KEEP AWAY FROM CHILDREN. 12/2004