Performance Specification for TRINAR® Finishes
General Substrate: HDG-90, Galvalume, Galfan, and Aluminum.
Application: Roll-coating of two-coat system. System:
Akzo Nobel’s recommended Proprietary Solvent or
Waterborne Primer and TRINAR® topcoat, over properly
cleaned and pre-treated substrate.
TRINAR® meets or exceeds all requirements AAMA 605.3-92.
Surface Appearance Smooth and free of streaks, blistering and other imperfections.
Film Thickness Topside finish: Primer (dry) = 0.20–0.25 mil; Top-coat (dry) = 0.75–0.90 mil. Reverse side finish: Primer (dry) = 0.15–0.25 mil; Pigmented Polyester Backer (dry) = 0.35– 0.45 mil. Total DFT for system = 0.95–1.15 mils. All measurements per NCCA Technical Bulletin II–4 or ASTM D 1005-84.
Topside Color Controlled to the Master Standard by an approved Color Difference Meter or Spectrophotometer, and by visual match under daylight and horizon light of a Macbeth Daylight Booth per ASTM D 1729-89.
Specular Gloss Determined per ASTM D 523-89 at a gloss meter angle of 60º. Gloss rating per customer nominal specification, ±5% specular reflectance. Standard TRINAR® systems are 35% ±5% but can be made available in both higher and lower gloss ranges upon special request.
Hardness Minimum pencil hardness, using Eagle Turquoise Pencils per NCCA Technical Bulletin II–12 or ASTM D 3363-92a is“HB”.
Cure Test Cured in baking oven to withstand 50 double rubs of an MEK-soaked cloth, to expose primer, per NCCA Technical Bulletin II-18.
Cross-Hatch Adhesion No paint removal with Scotch #610 cellophane tape after cross-scoring with eleven horizontal and eleven vertical lines ⅛” apart, per NCCA Bulletin II-5 or ASTM D 3359-93.
Direct and Reverse No visible paint removal with Scotch #610 cellophane tape
Impact Adhesion after direct and reverse impact of 80 inch-pounds, using ⅝” steel ball on a Gardner Impact Tester. (Not to include Zinc coating failures.) Per NCCA Bulletin II-6 or ASTM D 2794- 93.
Bend Adhesion Per ASTM D 4145-83 (1990) no loss of adhesion when taped with Scotch #610 cellophane tape after being subjected to a 1T diameter 180º bend test on 0.017” G-90 (grade D) galvanized steel or fabricator’s roll-forming operation. (Not to include Zinc failures.) A forming operation using a “Butler Jig” may be substituted for this test to more closely simulate the roll-forming operation. Per ASTM D 522-93a, an ⅛” mandrel bend may also be used to evaluate flexibility, with the same results in flexibility and adhesion.
Humidity Resistance No blistering, cracking, peeling, loss of gloss or softening of the finish after 2000 hours of exposure to 100% humidity at 100ºF ±5ºF, per Federal Test Method Standard 141, Method 6201 or ASTM D 2247-92.
Salt Spray Resistance Samples diagonally scored and subjected to a 5% neutral salt spray per ASTM B 117-94, then taped with Scotch #610 cellophane tape: 1000 Hours – no blistering, and no loss of greater than ⅛” from score line. (Sample taped 1 hour after removal from test cabinet.)
Water Immersion Samples immersed in distilled water at 100ºF per ASTM D
Resistance 870-92: 1000 hours – no loss of gloss, color change, cracking and no blistering greater than medium #6 over 20% of test area, per ASTM D 714-87 (1994). Slight softening of the finish when first removed from immersion; original hardness regained after 24 hours at room temperature.
Cleveland Condensing No blistering or white rust after 240 hours at 140ºF,
Cabinet with15-minute dry-off period every 6 hours, per ASTM D 4585-92 and NCCA Bulletin III-6.
Chemical Resistance No effect after 24-hour exposure to 10% solutions of hydrochloric acids, and the 18-hour exposure to 20% sulfuric acid, per ASTM D 1308-87, Procedure 6.2 (spot test). Meets all requirements of AAMA 605.3-92, including exposure to 10% muriatic acid and nitric acid fumes.
Kesternich Test No significant color change after 10 cycles in an SO2
chamber (Kesternich Cabinet or equivalent), per DIN
50018-1960 (SFW 2.0 S).
Weatherometer Test No checking, blistering or adhesion loss of coating system
after 3000 hours of accelerated weathering, per ASTM D
822-89/G 23-89, Method II.
Chalking Resistance No chalking greater than #8 rating per ASTM D 4214-89,
Method A, after a 3000-hour weatherometer test.
Color Change Finish coat color change not to exceed 2 NBS units per
ASTM D 2244-89 test procedure, after 3000-hour
weatherometer test.
Exterior Weathering Florida exposure (45º South) and EMMAQUA testing, per
ASTM D 4141-93 (1987), Procedure C, both confirm
superior exposure characteristics of TRINAR® systems.
Flame Spread Rating TRINAR® displays a flame spread classification of A
(Class 1), when tested in accordance with ASTM E 84-94.
Abrasion Resistance Per ASTM D 968-93, Method A, TRINAR® will pass 60
liters/mil, minimum, of falling sand.
Chip Resistance Rating of at least 5B, per ASTM D 3170-87 (1991).
Filiform Corrosion Resistance TRINAR® will not sustain filiform corrosion, per ASTM
D 2803-93.
*KYNAR 500® is a registered trademark of Atochem of North America, Inc.