With over a century of experience, Acciai Speciali Terni is the perfect partner on which ambitious designers and architects can rely, whatever their needs may be. Coil coated Vernest® SP stainless steel combines two different personalities: it is sturdy, hygienic, easy to maintain and durable, and also offers great aesthetic appeal because it can resemble a wide range of finishes and RAL colors.
Acciai Speciali Terni produces Vernest® SP products completely “in house”, from the stainless steel substrates to varnishing in coil-coating.
VERNEST® SP IS A HIGHLY VERSATILE AND CUSTOMISABLE PRODUCT, EASILY ADAPTABLE TO MEET OUR CUSTOMERS’ MOST SPECIFIC REQUIREMENTS.
Vernest® SP is versatile and customisable, available in any RAL colour and with any stainless steel substrate included in AST’s product portfolio. Aesthetic appearance is of primary importance, particularly in view of the material’s use with different surface finishes.
The distinctive combination of colour brightness and reflectance ensures high levels of ambient luminosity without causing glare, even under critical operating conditions (e.g. the reflection of vehicle headlights in tunnels).
The coating products and specific industrial application processes used for Vernest® SP also ensure excellent adhesion between the coating and the stainless steel substrate. This performance is maintained both during manufacturing processes, thanks to the product’s high formability, and in service when exposed to outdoor environments. Unlike conventional materials, Vernest® SP does not blister or delaminate from sheared edges in areas where the material has been cut.
Vernest® SP can be produced using any type of stainless steel. Its corrosion resistance makes it a premium product, with durability guaranteed by Acciai Speciali Terni.
VERNEST® SP DATA SHEET
DELIVERY CONDITIONS
| VALUES | |
| STEEL GRADE | AST 300 and 400 series |
| THICKNESS | 0.4 – 1.2 mm |
| WIDTH | 10 – 1520mm (strips and coils) – 100 – 1520mm (sheets) |
| LENGTH | 280 – 8000 mm |
| SURFACE PROTECTION | Removable plastic foil (standard) – Interleaved paper |
| PACKAGING | Wide range of packaging types, also for overseas shipment |
COATING
| CHARACTERISTICS | NORM | DATA |
| ORGANIC COATING | Top: Primer + polyester coating Back: Backcoat upon request | |
| COATING THICKNESS, TOP | EN 13523-1 | 20-25μm |
| COATING THICKNESS, BACK | EN 13523-1 | 5-8μm |
| GLOSS | EN 13523-2 | Standard (usually: 15-30% at 60 °C) |
| COLOR | EN 13523-3 | RAL standard – Special colors available upon request |
| REVERSE IMPACT | EN 13523-5 | No pickoff at 10J |
| ADHESION AFTER INDENTATION | EN 13523-6 | 100/100 (no pickoff) at h=8mm |
| RESISTANCE TO BENDING | EN 13523-7 | 1T (minimum bending radius) |
| CHEMICAL RESISTANCE (MEK) | EN 13523-11 | 100 double scrubs |
RESISTANCE TO AGGRESSIVE ENVIRONMENTS
| PROPERTIES | NORM | DATA |
| CORROSION RESISTANCE CLASS (OUTDOORS) | EN 10169-2 | RC 5 (*) |
| CORROSION RESISTANCE CLASS (INDOORS) | EN 10169-3 | CPI-5 |
| RESISTANCE TO CONTINUOUS HUMIDITY | EN 13523-25
EN 13523-26 ISO 6270-1 |
3000 hours
Blistering <s2< td=””> |
| SALT SPRAY TEST (NSS) | EN 13523-8
ISO 9227 ASTM B117 |
2000 hours (**)
No blistering Near-scratch pickoff <2mm |
| KESTERNICH TEST (K TEST) | EN 13523-23 | SO2, 20 cycles
No change in coating |
| BOILING WATER IMMERSION | EN 13523-18 | 1 hour
No change in coating |
| CONTINUOUS IMMERSION IN WATER | Internal procedure | 40 °C, 500 hours
No change in coating |
| RESISTANCE TO ACCELERATED UV AGING | EN 13523-10 | 2000 hours
E 60% |
| RESISTANCE TO FIRE | EN 13501-1
EN 14783 DM 10/03/05 |
Class A1 – Non flaming |
| HEAT RESISTANCE | Internal procedure | 90 °C, continuous No relevant changes |
* Industrial environments with high SO2 concentration, marine environments with high concentration of chlorine
** Tested grade: AISI 304. The use of ferritic grades must be evaluated according to the environment
RESISTANCE TO FREQUENT CLEANING
| PROPERTIES | NORM | DATA |
| EASY-TO-CLEAN PROPERTY | ASTM 4828 mod. | High |
| RESISTANCE TO SCRUBBING ABRASION | ASTM D4286 | Tool: wet abrasion scrub tester Mod. 5000 (Byk-Gardner) |
| Washing cycle A
(Liquid soap/400+400 double scrubs) |
ASTM D3450 | No thickness reduction
No change in color |
| Washing cycle B
(Liquid soap+abrasive particles/400+400 double scrubs) |
ASTM D2486 | Thickness reduction: < 1μm Change in color: E < 0.8 |
| Washing cycle C
(Liquid soap+abrasive particles/400+400 double scrubs for 6 times, tot. 5000 double scrubs) |
ASTM D2486 | Thickness reduction: < 10μm Change in color: slightly darker hue |
| REMOVAL OF SPRAY VARNISH (GRAFFITI) | Cleaning products (*) | Complete removal within 2-5 minutes
No change in coating |
*Tensides and organic solvent-based cleaning gels
