Service Metal, Inc. Technical Bulletin: Aluminum

Resin Coated Aluminum (Painted finishes on Aluminum)

METAL CHARACTERISTICS AND DESCRIPTION OF REFINISHING METHODS

Kynar 500 and other resin coated and fluoropolymer coated aluminum panels, extrusions, etc. are commonly manufactured under trade names, which include Alucobond, Polycron III. Duracron, Duranar, Fluoropon, Duralite and Steel-O-Bond to name just a few.

These factory-applied finishes are applied with electrostatic spray over aluminum and then oven cured for a low maintenance product. They ARE NOT MAINTENANCE FREE! If these surfaces are not cleaned periodically (twice per year in some environments is a minimum and up to 3 years is generally the longest period of deferred maintenance allowed before permanent staining could occur)

Once discoloration or scratches are apparent, re-coating of painted aluminum is incorporated in the color refinishing process. The variety of coatings we use depend on colors, metallic qualities and sheen. They are computer matched to the original color. Our coatings are the most durable custom finishes available for on-site refinishing. Doors and entrance areas, under normal conditions, will need refinishing every one to three years.

COMMON CAUSES OF SURFACE DETERIORATION

Ultraviolet deterioration, pitting, corrosion, oxidation, neglect, scratches, leeching of curtain wall sealant and factory pollutants, chalking and fading of the finish, sand and salt abrasion and abrasion due to pedestrian traffic. If resin coated aluminum is cleaned properly and on a regular basis, it should never need refinishing. Neglect is the most common cause of deterioration.

DURANAR RESTORATION

Repainting Kynar 500 finished aluminum should only be a last resort when the finish cannot be restored through restorative cleaning procedures. Kynar ADS is an expensive field applied system which can endure often times as long as the factory applied coatings.

Service One has developed a proprietary process which effectively restores the original painted finish and luster of sun faded, oxidized or chalking Kynar coatings. Call for an evaluation and sample of this inexpensive technology breakthrough!

Anodized Aluminum (DURANODIC)

COMMON CAUSES OF SURFACE DETERIORATION

Ultraviolet deterioration, leeching of curtain wall sealants, neglect, penetration or deterioration of the factory applied electrolytic finish due to excessive oxidation, scratches, vandalism, acid rain, auto and factory pollutants and abrasion due to a high volume of pedestrian traffic. Entrances and doors receive the most abuse and thus, often require higher frequencies of color flashing and refinishing.

Duranodic Aluminum is generally sealed after it is restored, using a variety of proprietary sealers.